restore original byte-at-a-time read in send_cmd_from_array ack loop

The ack polling loop has a tight timing requirement with
delay_microseconds_safe(1450) between iterations. Snapshotting
available() once could leave partial ack response bytes unread
until after the delay, potentially breaking cold boot timing
on some ld2420 units. Keep batch reads only in loop().

.ai/instructions.md

@@ -51,7 +51,79 @@ This document provides essential context for AI models interacting with this pro
 
 *   **Naming Conventions:**
     *   **Python:** Follows PEP 8. Use clear, descriptive names following snake_case.
-    *   **C++:** Follows the Google C++ Style Guide.
+    *   **C++:** Follows the Google C++ Style Guide with these specifics (following clang-tidy conventions):
+        - Function, method, and variable names: `lower_snake_case`
+        - Class/struct/enum names: `UpperCamelCase`
+        - Top-level constants (global/namespace scope): `UPPER_SNAKE_CASE`
+        - Function-local constants: `lower_snake_case`
+        - Protected/private fields: `lower_snake_case_with_trailing_underscore_`
+        - Favor descriptive names over abbreviations
+
+*   **C++ Field Visibility:**
+    *   **Prefer `protected`:** Use `protected` for most class fields to enable extensibility and testing. Fields should be `lower_snake_case_with_trailing_underscore_`.
+    *   **Use `private` for safety-critical cases:** Use `private` visibility when direct field access could introduce bugs or violate invariants:
+        1. **Pointer lifetime issues:** When setters validate and store pointers from known lists to prevent dangling references.
+           ```cpp
+           // Helper to find matching string in vector and return its pointer
+           inline const char *vector_find(const std::vector<const char *> &vec, const char *value) {
+             for (const char *item : vec) {
+               if (strcmp(item, value) == 0)
+                 return item;
+             }
+             return nullptr;
+           }
+
+           class ClimateDevice {
+            public:
+             void set_custom_fan_modes(std::initializer_list<const char *> modes) {
+               this->custom_fan_modes_ = modes;
+               this->active_custom_fan_mode_ = nullptr;  // Reset when modes change
+             }
+             bool set_custom_fan_mode(const char *mode) {
+               // Find mode in supported list and store that pointer (not the input pointer)
+               const char *validated_mode = vector_find(this->custom_fan_modes_, mode);
+               if (validated_mode != nullptr) {
+                 this->active_custom_fan_mode_ = validated_mode;
+                 return true;
+               }
+               return false;
+             }
+            private:
+             std::vector<const char *> custom_fan_modes_;  // Pointers to string literals in flash
+             const char *active_custom_fan_mode_{nullptr};  // Must point to entry in custom_fan_modes_
+           };
+           ```
+        2. **Invariant coupling:** When multiple fields must remain synchronized to prevent buffer overflows or data corruption.
+           ```cpp
+           class Buffer {
+            public:
+             void resize(size_t new_size) {
+               auto new_data = std::make_unique<uint8_t[]>(new_size);
+               if (this->data_) {
+                 std::memcpy(new_data.get(), this->data_.get(), std::min(this->size_, new_size));
+               }
+               this->data_ = std::move(new_data);
+               this->size_ = new_size;  // Must stay in sync with data_
+             }
+            private:
+             std::unique_ptr<uint8_t[]> data_;
+             size_t size_{0};  // Must match allocated size of data_
+           };
+           ```
+        3. **Resource management:** When setters perform cleanup or registration operations that derived classes might skip.
+    *   **Provide `protected` accessor methods:** When derived classes need controlled access to `private` members.
+
+*   **C++ Preprocessor Directives:**
+    *   **Avoid `#define` for constants:** Using `#define` for constants is discouraged and should be replaced with `const` variables or enums.
+    *   **Use `#define` only for:**
+        - Conditional compilation (`#ifdef`, `#ifndef`)
+        - Compile-time sizes calculated during Python code generation (e.g., configuring `std::array` or `StaticVector` dimensions via `cg.add_define()`)
+
+*   **C++ Additional Conventions:**
+    *   **Member access:** Prefix all class member access with `this->` (e.g., `this->value_` not `value_`)
+    *   **Indentation:** Use spaces (two per indentation level), not tabs
+    *   **Type aliases:** Prefer `using type_t = int;` over `typedef int type_t;`
+    *   **Line length:** Wrap lines at no more than 120 characters
 
 *   **Component Structure:**
     *   **Standard Files:**
@@ -100,8 +172,7 @@ This document provides essential context for AI models interacting with this pro
 
     *   **C++ Class Pattern:**
         ```cpp
-        namespace esphome {
-        namespace my_component {
+        namespace esphome::my_component {
 
         class MyComponent : public Component {
          public:
@@ -117,8 +188,7 @@ This document provides essential context for AI models interacting with this pro
           int param_{0};
         };
 
-        }  // namespace my_component
-        }  // namespace esphome
+        }  // namespace esphome::my_component
         ```
 
     *   **Common Component Examples:**
@@ -206,12 +276,12 @@ This document provides essential context for AI models interacting with this pro
 ## 7. Specific Instructions for AI Collaboration
 
 *   **Contribution Workflow (Pull Request Process):**
-    1.  **Fork & Branch:** Create a new branch in your fork.
+    1.  **Fork & Branch:** Create a new branch based on the `dev` branch (always use `git checkout -b <branch-name> dev` to ensure you're branching from `dev`, not the currently checked out branch).
     2.  **Make Changes:** Adhere to all coding conventions and patterns.
     3.  **Test:** Create component tests for all supported platforms and run the full test suite locally.
     4.  **Lint:** Run `pre-commit` to ensure code is compliant.
     5.  **Commit:** Commit your changes. There is no strict format for commit messages.
-    6.  **Pull Request:** Submit a PR against the `dev` branch. The Pull Request title should have a prefix of the component being worked on (e.g., `[display] Fix bug`, `[abc123] Add new component`). Update documentation, examples, and add `CODEOWNERS` entries as needed. Pull requests should always be made with the PULL_REQUEST_TEMPLATE.md template filled out correctly.
+    6.  **Pull Request:** Submit a PR against the `dev` branch. The Pull Request title should have a prefix of the component being worked on (e.g., `[display] Fix bug`, `[abc123] Add new component`). Update documentation, examples, and add `CODEOWNERS` entries as needed. Pull requests should always be made using the `.github/PULL_REQUEST_TEMPLATE.md` template - fill out all sections completely without removing any parts of the template.
 
 *   **Documentation Contributions:**
     *   Documentation is hosted in the separate `esphome/esphome-docs` repository.
@@ -223,6 +293,12 @@ This document provides essential context for AI models interacting with this pro
     *   **Configuration Design:** Aim for simplicity with sensible defaults, while allowing for advanced customization.
     *   **Embedded Systems Optimization:** ESPHome targets resource-constrained microcontrollers. Be mindful of flash size and RAM usage.
 
+        **Why Heap Allocation Matters:**
+
+        ESP devices run for months with small heaps shared between Wi-Fi, BLE, LWIP, and application code. Over time, repeated allocations of different sizes fragment the heap. Failures happen when the largest contiguous block shrinks, even if total free heap is still large. We have seen field crashes caused by this.
+
+        **Heap allocation after `setup()` should be avoided unless absolutely unavoidable.** Every allocation/deallocation cycle contributes to fragmentation. ESPHome treats runtime heap allocation as a long-term reliability bug, not a performance issue. Helpers that hide allocation (`std::string`, `std::to_string`, string-returning helpers) are being deprecated and replaced with buffer and view based APIs.
+
         **STL Container Guidelines:**
 
         ESPHome runs on embedded systems with limited resources. Choose containers carefully:
@@ -252,15 +328,15 @@ This document provides essential context for AI models interacting with this pro
            std::array<uint8_t, 256> buffer;
            ```
 
-        2. **Compile-time-known fixed sizes with vector-like API:** Use `StaticVector` from `esphome/core/helpers.h` for fixed-size stack allocation with `push_back()` interface.
+        2. **Compile-time-known fixed sizes with vector-like API:** Use `StaticVector` from `esphome/core/helpers.h` for compile-time fixed size with `push_back()` interface (no dynamic allocation).
            ```cpp
            // Bad - generates STL realloc code (_M_realloc_insert)
            std::vector<ServiceRecord> services;
            services.reserve(5);  // Still includes reallocation machinery
 
-           // Good - compile-time fixed size, stack allocated, no reallocation machinery
-           StaticVector<ServiceRecord, MAX_SERVICES> services;  // Allocates all MAX_SERVICES on stack
-           services.push_back(record1);  // Tracks count but all slots allocated
+           // Good - compile-time fixed size, no dynamic allocation
+           StaticVector<ServiceRecord, MAX_SERVICES> services;
+           services.push_back(record1);
            ```
            Use `cg.add_define("MAX_SERVICES", count)` to set the size from Python configuration.
            Like `std::array` but with vector-like API (`push_back()`, `size()`) and no STL reallocation code.
@@ -302,22 +378,21 @@ This document provides essential context for AI models interacting with this pro
            ```
            Linear search on small datasets (1-16 elements) is often faster than hashing/tree overhead, but this depends on lookup frequency and access patterns. For frequent lookups in hot code paths, the O(1) vs O(n) complexity difference may still matter even for small datasets. `std::vector` with simple structs is usually fine—it's the heavy containers (`map`, `set`, `unordered_map`) that should be avoided for small datasets unless profiling shows otherwise.
 
-        5. **Detection:** Look for these patterns in compiler output:
+        5. **Avoid `std::deque`:** It allocates in 512-byte blocks regardless of element size, guaranteeing at least 512 bytes of RAM usage immediately. This is a major source of crashes on memory-constrained devices.
+
+        6. **Detection:** Look for these patterns in compiler output:
            - Large code sections with STL symbols (vector, map, set)
            - `alloc`, `realloc`, `dealloc` in symbol names
            - `_M_realloc_insert`, `_M_default_append` (vector reallocation)
            - Red-black tree code (`rb_tree`, `_Rb_tree`)
            - Hash table infrastructure (`unordered_map`, `hash`)
 
-        **When to optimize:**
+        **Prioritize optimization effort for:**
         - Core components (API, network, logger)
         - Widely-used components (mdns, wifi, ble)
         - Components causing flash size complaints
 
-        **When not to optimize:**
-        - Single-use niche components
-        - Code where readability matters more than bytes
-        - Already using appropriate containers
+        Note: Avoiding heap allocation after `setup()` is always required regardless of component type. The prioritization above is about the effort spent on container optimization (e.g., migrating from `std::vector` to `StaticVector`).
 
     *   **State Management:** Use `CORE.data` for component state that needs to persist during configuration generation. Avoid module-level mutable globals.
 
@@ -332,35 +407,45 @@ This document provides essential context for AI models interacting with this pro
             _use_feature = True
         ```
 
-        **Good Pattern (CORE.data with Helpers):**
+        **Bad Pattern (Flat Keys):**
         ```python
+        # Don't do this - keys should be namespaced under component domain
+        MY_FEATURE_KEY = "my_component_feature"
+        CORE.data[MY_FEATURE_KEY] = True
+        ```
+
+        **Good Pattern (dataclass):**
+        ```python
+        from dataclasses import dataclass, field
         from esphome.core import CORE
 
-        # Keys for CORE.data storage
-        COMPONENT_STATE_KEY = "my_component_state"
-        USE_FEATURE_KEY = "my_component_use_feature"
+        DOMAIN = "my_component"
 
-        def _get_component_state() -> list:
-            """Get component state from CORE.data."""
-            return CORE.data.setdefault(COMPONENT_STATE_KEY, [])
+        @dataclass
+        class MyComponentData:
+            feature_enabled: bool = False
+            item_count: int = 0
+            items: list[str] = field(default_factory=list)
 
-        def _get_use_feature() -> bool | None:
-            """Get feature flag from CORE.data."""
-            return CORE.data.get(USE_FEATURE_KEY)
+        def _get_data() -> MyComponentData:
+            if DOMAIN not in CORE.data:
+                CORE.data[DOMAIN] = MyComponentData()
+            return CORE.data[DOMAIN]
 
-        def _set_use_feature(value: bool) -> None:
-            """Set feature flag in CORE.data."""
-            CORE.data[USE_FEATURE_KEY] = value
+        def request_feature() -> None:
+            _get_data().feature_enabled = True
 
-        def enable_feature():
-            _set_use_feature(True)
+        def add_item(item: str) -> None:
+            _get_data().items.append(item)
         ```
 
+        If you need a real-world example, search for components that use `@dataclass` with `CORE.data` in the codebase. Note: Some components may use `TypedDict` for dictionary-based storage; both patterns are acceptable depending on your needs.
+
         **Why this matters:**
         - Module-level globals persist between compilation runs if the dashboard doesn't fork/exec
         - `CORE.data` automatically clears between runs
-        - Typed helper functions provide better IDE support and maintainability
-        - Encapsulation makes state management explicit and testable
+        - Namespacing under `DOMAIN` prevents key collisions between components
+        - `@dataclass` provides type safety and cleaner attribute access
 
 *   **Security:** Be mindful of security when making changes to the API, web server, or any other network-related code. Do not hardcode secrets or keys.
 
@@ -368,3 +453,45 @@ This document provides essential context for AI models interacting with this pro
     *   **Python:** When adding a new Python dependency, add it to the appropriate `requirements*.txt` file and `pyproject.toml`.
     *   **C++ / PlatformIO:** When adding a new C++ dependency, add it to `platformio.ini` and use `cg.add_library`.
     *   **Build Flags:** Use `cg.add_build_flag(...)` to add compiler flags.
+
+## 8. Public API and Breaking Changes
+
+*   **Public C++ API:**
+    *   **Components**: Only documented features at [esphome.io](https://esphome.io) are public API. Undocumented `public` members are internal.
+    *   **Core/Base Classes** (`esphome/core/`, `Component`, `Sensor`, etc.): All `public` members are public API.
+    *   **Components with Global Accessors** (`global_api_server`, etc.): All `public` members are public API (except config setters).
+
+*   **Public Python API:**
+    *   All documented configuration options at [esphome.io](https://esphome.io) are public API.
+    *   Python code in `esphome/core/` actively used by existing core components is considered stable API.
+    *   Other Python code is internal unless explicitly documented for external component use.
+
+*   **Breaking Changes Policy:**
+    *   Aim for **6-month deprecation window** when possible
+    *   Clean breaks allowed for: signature changes, deep refactorings, resource constraints
+    *   Must document migration path in PR description (generates release notes)
+    *   Blog post required for core/base class changes or significant architectural changes
+    *   Full details: https://developers.esphome.io/contributing/code/#public-api-and-breaking-changes
+
+*   **Breaking Change Checklist:**
+    - [ ] Clear justification (RAM/flash savings, architectural improvement)
+    - [ ] Explored non-breaking alternatives
+    - [ ] Added deprecation warnings if possible (use `ESPDEPRECATED` macro for C++)
+    - [ ] Documented migration path in PR description with before/after examples
+    - [ ] Updated all internal usage and esphome-docs
+    - [ ] Tested backward compatibility during deprecation period
+
+*   **Deprecation Pattern (C++):**
+    ```cpp
+    // Remove before 2026.6.0
+    ESPDEPRECATED("Use new_method() instead. Removed in 2026.6.0", "2025.12.0")
+    void old_method() { this->new_method(); }
+    ```
+
+*   **Deprecation Pattern (Python):**
+    ```python
+    # Remove before 2026.6.0
+    if CONF_OLD_KEY in config:
+        _LOGGER.warning(f"'{CONF_OLD_KEY}' deprecated, use '{CONF_NEW_KEY}'. Removed in 2026.6.0")
+        config[CONF_NEW_KEY] = config.pop(CONF_OLD_KEY)  # Auto-migrate
+    ```

.clang-tidy.hash

@@ -1 +1 @@
-d7693a1e996cacd4a3d1c9a16336799c2a8cc3db02e4e74084151ce964581248
+37ec8d5a343c8d0a485fd2118cbdabcbccd7b9bca197e4a392be75087974dced

.claude/skills/pr-workflow/SKILL.md

@@ -0,0 +1,96 @@
+---
+name: pr-workflow
+description: Create pull requests for esphome. Use when creating PRs, submitting changes, or preparing contributions.
+allowed-tools: Read, Bash, Glob, Grep
+---
+
+# ESPHome PR Workflow
+
+When creating a pull request for esphome, follow these steps:
+
+## 1. Create Branch from Upstream
+
+Always base your branch on **upstream** (not origin/fork) to ensure you have the latest code:
+
+```bash
+git fetch upstream
+git checkout -b <branch-name> upstream/dev
+```
+
+## 2. Read the PR Template
+
+Before creating a PR, read `.github/PULL_REQUEST_TEMPLATE.md` to understand required fields.
+
+## 3. Create the PR
+
+Use `gh pr create` with the **full template** filled in. Never skip or abbreviate sections.
+
+Required fields:
+- **What does this implement/fix?**: Brief description of changes
+- **Types of changes**: Check ONE appropriate box (Bugfix, New feature, Breaking change, etc.)
+- **Related issue**: Use `fixes <link>` syntax if applicable
+- **Pull request in esphome-docs**: Link if docs are needed
+- **Test Environment**: Check platforms you tested on
+- **Example config.yaml**: Include working example YAML
+- **Checklist**: Verify code is tested and tests added
+
+## 4. Example PR Body
+
+```markdown
+# What does this implement/fix?
+
+<describe your changes here>
+
+## Types of changes
+
+- [ ] Bugfix (non-breaking change which fixes an issue)
+- [x] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Developer breaking change (an API change that could break external components)
+- [ ] Code quality improvements to existing code or addition of tests
+- [ ] Other
+
+**Related issue or feature (if applicable):**
+
+- fixes https://github.com/esphome/esphome/issues/XXX
+
+**Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):**
+
+- esphome/esphome-docs#XXX
+
+## Test Environment
+
+- [x] ESP32
+- [x] ESP32 IDF
+- [ ] ESP8266
+- [ ] RP2040
+- [ ] BK72xx
+- [ ] RTL87xx
+- [ ] LN882x
+- [ ] nRF52840
+
+## Example entry for `config.yaml`:
+
+```yaml
+# Example config.yaml
+component_name:
+  id: my_component
+  option: value
+```
+
+## Checklist:
+  - [x] The code change is tested and works locally.
+  - [x] Tests have been added to verify that the new code works (under `tests/` folder).
+
+If user exposed functionality or configuration variables are added/changed:
+  - [ ] Documentation added/updated in [esphome-docs](https://github.com/esphome/esphome-docs).
+```
+
+## 5. Push and Create PR
+
+```bash
+git push -u origin <branch-name>
+gh pr create --repo esphome/esphome --base dev --title "[component] Brief description"
+```
+
+Title should be prefixed with the component name in brackets, e.g. `[safe_mode] Add feature`.

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,6 +7,7 @@
 - [ ] Bugfix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Developer breaking change (an API change that could break external components)
 - [ ] Code quality improvements to existing code or addition of tests
 - [ ] Other
 
@@ -26,6 +27,7 @@
 - [ ] RP2040
 - [ ] BK72xx
 - [ ] RTL87xx
+- [ ] LN882x
 - [ ] nRF52840
 
 ## Example entry for `config.yaml`:

.github/actions/restore-python/action.yml

@@ -17,12 +17,12 @@ runs:
   steps:
     - name: Set up Python ${{ inputs.python-version }}
       id: python
-      uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
       with:
         python-version: ${{ inputs.python-version }}
     - name: Restore Python virtual environment
       id: cache-venv
-      uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+      uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
       with:
         path: venv
         # yamllint disable-line rule:line-length

.github/scripts/auto-label-pr/constants.js

@@ -0,0 +1,38 @@
+// Constants and markers for PR auto-labeling
+module.exports = {
+  BOT_COMMENT_MARKER: '<!-- auto-label-pr-bot -->',
+  CODEOWNERS_MARKER: '<!-- codeowners-request -->',
+  TOO_BIG_MARKER: '<!-- too-big-request -->',
+  DEPRECATED_COMPONENT_MARKER: '<!-- deprecated-component-request -->',
+
+  MANAGED_LABELS: [
+    'new-component',
+    'new-platform',
+    'new-target-platform',
+    'merging-to-release',
+    'merging-to-beta',
+    'chained-pr',
+    'core',
+    'small-pr',
+    'dashboard',
+    'github-actions',
+    'by-code-owner',
+    'has-tests',
+    'needs-tests',
+    'needs-docs',
+    'needs-codeowners',
+    'too-big',
+    'labeller-recheck',
+    'bugfix',
+    'new-feature',
+    'breaking-change',
+    'developer-breaking-change',
+    'code-quality',
+    'deprecated-component'
+  ],
+
+  DOCS_PR_PATTERNS: [
+    /https:\/\/github\.com\/esphome\/esphome-docs\/pull\/\d+/,
+    /esphome\/esphome-docs#\d+/
+  ]
+};

.github/scripts/auto-label-pr/detectors.js

@@ -0,0 +1,373 @@
+const fs = require('fs');
+const { DOCS_PR_PATTERNS } = require('./constants');
+
+// Strategy: Merge branch detection
+async function detectMergeBranch(context) {
+  const labels = new Set();
+  const baseRef = context.payload.pull_request.base.ref;
+
+  if (baseRef === 'release') {
+    labels.add('merging-to-release');
+  } else if (baseRef === 'beta') {
+    labels.add('merging-to-beta');
+  } else if (baseRef !== 'dev') {
+    labels.add('chained-pr');
+  }
+
+  return labels;
+}
+
+// Strategy: Component and platform labeling
+async function detectComponentPlatforms(changedFiles, apiData) {
+  const labels = new Set();
+  const componentRegex = /^esphome\/components\/([^\/]+)\//;
+  const targetPlatformRegex = new RegExp(`^esphome\/components\/(${apiData.targetPlatforms.join('|')})/`);
+
+  for (const file of changedFiles) {
+    const componentMatch = file.match(componentRegex);
+    if (componentMatch) {
+      labels.add(`component: ${componentMatch[1]}`);
+    }
+
+    const platformMatch = file.match(targetPlatformRegex);
+    if (platformMatch) {
+      labels.add(`platform: ${platformMatch[1]}`);
+    }
+  }
+
+  return labels;
+}
+
+// Strategy: New component detection
+async function detectNewComponents(prFiles) {
+  const labels = new Set();
+  const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
+
+  for (const file of addedFiles) {
+    const componentMatch = file.match(/^esphome\/components\/([^\/]+)\/__init__\.py$/);
+    if (componentMatch) {
+      try {
+        const content = fs.readFileSync(file, 'utf8');
+        if (content.includes('IS_TARGET_PLATFORM = True')) {
+          labels.add('new-target-platform');
+        }
+      } catch (error) {
+        console.log(`Failed to read content of ${file}:`, error.message);
+      }
+      labels.add('new-component');
+    }
+  }
+
+  return labels;
+}
+
+// Strategy: New platform detection
+async function detectNewPlatforms(prFiles, apiData) {
+  const labels = new Set();
+  const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
+
+  for (const file of addedFiles) {
+    const platformFileMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\.py$/);
+    if (platformFileMatch) {
+      const [, component, platform] = platformFileMatch;
+      if (apiData.platformComponents.includes(platform)) {
+        labels.add('new-platform');
+      }
+    }
+
+    const platformDirMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\/__init__\.py$/);
+    if (platformDirMatch) {
+      const [, component, platform] = platformDirMatch;
+      if (apiData.platformComponents.includes(platform)) {
+        labels.add('new-platform');
+      }
+    }
+  }
+
+  return labels;
+}
+
+// Strategy: Core files detection
+async function detectCoreChanges(changedFiles) {
+  const labels = new Set();
+  const coreFiles = changedFiles.filter(file =>
+    file.startsWith('esphome/core/') ||
+    (file.startsWith('esphome/') && file.split('/').length === 2)
+  );
+
+  if (coreFiles.length > 0) {
+    labels.add('core');
+  }
+
+  return labels;
+}
+
+// Strategy: PR size detection
+async function detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, TOO_BIG_THRESHOLD) {
+  const labels = new Set();
+
+  if (totalChanges <= SMALL_PR_THRESHOLD) {
+    labels.add('small-pr');
+    return labels;
+  }
+
+  const testAdditions = prFiles
+    .filter(file => file.filename.startsWith('tests/'))
+    .reduce((sum, file) => sum + (file.additions || 0), 0);
+  const testDeletions = prFiles
+    .filter(file => file.filename.startsWith('tests/'))
+    .reduce((sum, file) => sum + (file.deletions || 0), 0);
+
+  const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
+
+  // Don't add too-big if mega-pr label is already present
+  if (nonTestChanges > TOO_BIG_THRESHOLD && !isMegaPR) {
+    labels.add('too-big');
+  }
+
+  return labels;
+}
+
+// Strategy: Dashboard changes
+async function detectDashboardChanges(changedFiles) {
+  const labels = new Set();
+  const dashboardFiles = changedFiles.filter(file =>
+    file.startsWith('esphome/dashboard/') ||
+    file.startsWith('esphome/components/dashboard_import/')
+  );
+
+  if (dashboardFiles.length > 0) {
+    labels.add('dashboard');
+  }
+
+  return labels;
+}
+
+// Strategy: GitHub Actions changes
+async function detectGitHubActionsChanges(changedFiles) {
+  const labels = new Set();
+  const githubActionsFiles = changedFiles.filter(file =>
+    file.startsWith('.github/workflows/')
+  );
+
+  if (githubActionsFiles.length > 0) {
+    labels.add('github-actions');
+  }
+
+  return labels;
+}
+
+// Strategy: Code owner detection
+async function detectCodeOwner(github, context, changedFiles) {
+  const labels = new Set();
+  const { owner, repo } = context.repo;
+
+  try {
+    const { data: codeownersFile } = await github.rest.repos.getContent({
+      owner,
+      repo,
+      path: 'CODEOWNERS',
+    });
+
+    const codeownersContent = Buffer.from(codeownersFile.content, 'base64').toString('utf8');
+    const prAuthor = context.payload.pull_request.user.login;
+
+    const codeownersLines = codeownersContent.split('\n')
+      .map(line => line.trim())
+      .filter(line => line && !line.startsWith('#'));
+
+    const codeownersRegexes = codeownersLines.map(line => {
+      const parts = line.split(/\s+/);
+      const pattern = parts[0];
+      const owners = parts.slice(1);
+
+      let regex;
+      if (pattern.endsWith('*')) {
+        const dir = pattern.slice(0, -1);
+        regex = new RegExp(`^${dir.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}`);
+      } else if (pattern.includes('*')) {
+        // First escape all regex special chars except *, then replace * with .*
+        const regexPattern = pattern
+          .replace(/[.+?^${}()|[\]\\]/g, '\\$&')
+          .replace(/\*/g, '.*');
+        regex = new RegExp(`^${regexPattern}$`);
+      } else {
+        regex = new RegExp(`^${pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}$`);
+      }
+
+      return { regex, owners };
+    });
+
+    for (const file of changedFiles) {
+      for (const { regex, owners } of codeownersRegexes) {
+        if (regex.test(file) && owners.some(owner => owner === `@${prAuthor}`)) {
+          labels.add('by-code-owner');
+          return labels;
+        }
+      }
+    }
+  } catch (error) {
+    console.log('Failed to read or parse CODEOWNERS file:', error.message);
+  }
+
+  return labels;
+}
+
+// Strategy: Test detection
+async function detectTests(changedFiles) {
+  const labels = new Set();
+  const testFiles = changedFiles.filter(file => file.startsWith('tests/'));
+
+  if (testFiles.length > 0) {
+    labels.add('has-tests');
+  }
+
+  return labels;
+}
+
+// Strategy: PR Template Checkbox detection
+async function detectPRTemplateCheckboxes(context) {
+  const labels = new Set();
+  const prBody = context.payload.pull_request.body || '';
+
+  console.log('Checking PR template checkboxes...');
+
+  // Check for checked checkboxes in the "Types of changes" section
+  const checkboxPatterns = [
+    { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
+    { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
+    { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
+    { pattern: /- \[x\] Developer breaking change \(an API change that could break external components\)/i, label: 'developer-breaking-change' },
+    { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
+  ];
+
+  for (const { pattern, label } of checkboxPatterns) {
+    if (pattern.test(prBody)) {
+      console.log(`Found checked checkbox for: ${label}`);
+      labels.add(label);
+    }
+  }
+
+  return labels;
+}
+
+// Strategy: Deprecated component detection
+async function detectDeprecatedComponents(github, context, changedFiles) {
+  const labels = new Set();
+  const deprecatedInfo = [];
+  const { owner, repo } = context.repo;
+
+  // Compile regex once for better performance
+  const componentFileRegex = /^esphome\/components\/([^\/]+)\//;
+
+  // Get files that are modified or added in components directory
+  const componentFiles = changedFiles.filter(file => componentFileRegex.test(file));
+
+  if (componentFiles.length === 0) {
+    return { labels, deprecatedInfo };
+  }
+
+  // Extract unique component names using the same regex
+  const components = new Set();
+  for (const file of componentFiles) {
+    const match = file.match(componentFileRegex);
+    if (match) {
+      components.add(match[1]);
+    }
+  }
+
+  // Get PR head to fetch files from the PR branch
+  const prNumber = context.payload.pull_request.number;
+
+  // Check each component's __init__.py for DEPRECATED_COMPONENT constant
+  for (const component of components) {
+    const initFile = `esphome/components/${component}/__init__.py`;
+    try {
+      // Fetch file content from PR head using GitHub API
+      const { data: fileData } = await github.rest.repos.getContent({
+        owner,
+        repo,
+        path: initFile,
+        ref: `refs/pull/${prNumber}/head`
+      });
+
+      // Decode base64 content
+      const content = Buffer.from(fileData.content, 'base64').toString('utf8');
+
+      // Look for DEPRECATED_COMPONENT = "message" or DEPRECATED_COMPONENT = 'message'
+      // Support single quotes, double quotes, and triple quotes (for multiline)
+      const doubleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*"""([\s\S]*?)"""/s) ||
+                              content.match(/DEPRECATED_COMPONENT\s*=\s*"((?:[^"\\]|\\.)*)"/);
+      const singleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*'''([\s\S]*?)'''/s) ||
+                              content.match(/DEPRECATED_COMPONENT\s*=\s*'((?:[^'\\]|\\.)*)'/);
+      const deprecatedMatch = doubleQuoteMatch || singleQuoteMatch;
+
+      if (deprecatedMatch) {
+        labels.add('deprecated-component');
+        deprecatedInfo.push({
+          component: component,
+          message: deprecatedMatch[1].trim()
+        });
+        console.log(`Found deprecated component: ${component}`);
+      }
+    } catch (error) {
+      // Only log if it's not a simple "file not found" error (404)
+      if (error.status !== 404) {
+        console.log(`Error reading ${initFile}:`, error.message);
+      }
+    }
+  }
+
+  return { labels, deprecatedInfo };
+}
+
+// Strategy: Requirements detection
+async function detectRequirements(allLabels, prFiles, context) {
+  const labels = new Set();
+
+  // Check for missing tests
+  if ((allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) && !allLabels.has('has-tests')) {
+    labels.add('needs-tests');
+  }
+
+  // Check for missing docs
+  if (allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) {
+    const prBody = context.payload.pull_request.body || '';
+    const hasDocsLink = DOCS_PR_PATTERNS.some(pattern => pattern.test(prBody));
+
+    if (!hasDocsLink) {
+      labels.add('needs-docs');
+    }
+  }
+
+  // Check for missing CODEOWNERS
+  if (allLabels.has('new-component')) {
+    const codeownersModified = prFiles.some(file =>
+      file.filename === 'CODEOWNERS' &&
+      (file.status === 'modified' || file.status === 'added') &&
+      (file.additions || 0) > 0
+    );
+
+    if (!codeownersModified) {
+      labels.add('needs-codeowners');
+    }
+  }
+
+  return labels;
+}
+
+module.exports = {
+  detectMergeBranch,
+  detectComponentPlatforms,
+  detectNewComponents,
+  detectNewPlatforms,
+  detectCoreChanges,
+  detectPRSize,
+  detectDashboardChanges,
+  detectGitHubActionsChanges,
+  detectCodeOwner,
+  detectTests,
+  detectPRTemplateCheckboxes,
+  detectDeprecatedComponents,
+  detectRequirements
+};

.github/scripts/auto-label-pr/index.js

@@ -0,0 +1,187 @@
+const { MANAGED_LABELS } = require('./constants');
+const {
+  detectMergeBranch,
+  detectComponentPlatforms,
+  detectNewComponents,
+  detectNewPlatforms,
+  detectCoreChanges,
+  detectPRSize,
+  detectDashboardChanges,
+  detectGitHubActionsChanges,
+  detectCodeOwner,
+  detectTests,
+  detectPRTemplateCheckboxes,
+  detectDeprecatedComponents,
+  detectRequirements
+} = require('./detectors');
+const { handleReviews } = require('./reviews');
+const { applyLabels, removeOldLabels } = require('./labels');
+
+// Fetch API data
+async function fetchApiData() {
+  try {
+    const response = await fetch('https://data.esphome.io/components.json');
+    const componentsData = await response.json();
+    return {
+      targetPlatforms: componentsData.target_platforms || [],
+      platformComponents: componentsData.platform_components || []
+    };
+  } catch (error) {
+    console.log('Failed to fetch components data from API:', error.message);
+    return { targetPlatforms: [], platformComponents: [] };
+  }
+}
+
+module.exports = async ({ github, context }) => {
+  // Environment variables
+  const SMALL_PR_THRESHOLD = parseInt(process.env.SMALL_PR_THRESHOLD);
+  const MAX_LABELS = parseInt(process.env.MAX_LABELS);
+  const TOO_BIG_THRESHOLD = parseInt(process.env.TOO_BIG_THRESHOLD);
+  const COMPONENT_LABEL_THRESHOLD = parseInt(process.env.COMPONENT_LABEL_THRESHOLD);
+
+  // Global state
+  const { owner, repo } = context.repo;
+  const pr_number = context.issue.number;
+
+  // Get current labels and PR data
+  const { data: currentLabelsData } = await github.rest.issues.listLabelsOnIssue({
+    owner,
+    repo,
+    issue_number: pr_number
+  });
+  const currentLabels = currentLabelsData.map(label => label.name);
+  const managedLabels = currentLabels.filter(label =>
+    label.startsWith('component: ') || MANAGED_LABELS.includes(label)
+  );
+
+  // Check for mega-PR early - if present, skip most automatic labeling
+  const isMegaPR = currentLabels.includes('mega-pr');
+
+  // Get all PR files with automatic pagination
+  const prFiles = await github.paginate(
+    github.rest.pulls.listFiles,
+    {
+      owner,
+      repo,
+      pull_number: pr_number
+    }
+  );
+
+  // Calculate data from PR files
+  const changedFiles = prFiles.map(file => file.filename);
+  const totalAdditions = prFiles.reduce((sum, file) => sum + (file.additions || 0), 0);
+  const totalDeletions = prFiles.reduce((sum, file) => sum + (file.deletions || 0), 0);
+  const totalChanges = totalAdditions + totalDeletions;
+
+  console.log('Current labels:', currentLabels.join(', '));
+  console.log('Changed files:', changedFiles.length);
+  console.log('Total changes:', totalChanges);
+  if (isMegaPR) {
+    console.log('Mega-PR detected - applying limited labeling logic');
+  }
+
+  // Fetch API data
+  const apiData = await fetchApiData();
+  const baseRef = context.payload.pull_request.base.ref;
+
+  // Early exit for release and beta branches only
+  if (baseRef === 'release' || baseRef === 'beta') {
+    const branchLabels = await detectMergeBranch(context);
+    const finalLabels = Array.from(branchLabels);
+
+    console.log('Computed labels (merge branch only):', finalLabels.join(', '));
+
+    // Apply labels
+    await applyLabels(github, context, finalLabels);
+
+    // Remove old managed labels
+    await removeOldLabels(github, context, managedLabels, finalLabels);
+
+    return;
+  }
+
+  // Run all strategies
+  const [
+    branchLabels,
+    componentLabels,
+    newComponentLabels,
+    newPlatformLabels,
+    coreLabels,
+    sizeLabels,
+    dashboardLabels,
+    actionsLabels,
+    codeOwnerLabels,
+    testLabels,
+    checkboxLabels,
+    deprecatedResult
+  ] = await Promise.all([
+    detectMergeBranch(context),
+    detectComponentPlatforms(changedFiles, apiData),
+    detectNewComponents(prFiles),
+    detectNewPlatforms(prFiles, apiData),
+    detectCoreChanges(changedFiles),
+    detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, TOO_BIG_THRESHOLD),
+    detectDashboardChanges(changedFiles),
+    detectGitHubActionsChanges(changedFiles),
+    detectCodeOwner(github, context, changedFiles),
+    detectTests(changedFiles),
+    detectPRTemplateCheckboxes(context),
+    detectDeprecatedComponents(github, context, changedFiles)
+  ]);
+
+  // Extract deprecated component info
+  const deprecatedLabels = deprecatedResult.labels;
+  const deprecatedInfo = deprecatedResult.deprecatedInfo;
+
+  // Combine all labels
+  const allLabels = new Set([
+    ...branchLabels,
+    ...componentLabels,
+    ...newComponentLabels,
+    ...newPlatformLabels,
+    ...coreLabels,
+    ...sizeLabels,
+    ...dashboardLabels,
+    ...actionsLabels,
+    ...codeOwnerLabels,
+    ...testLabels,
+    ...checkboxLabels,
+    ...deprecatedLabels
+  ]);
+
+  // Detect requirements based on all other labels
+  const requirementLabels = await detectRequirements(allLabels, prFiles, context);
+  for (const label of requirementLabels) {
+    allLabels.add(label);
+  }
+
+  let finalLabels = Array.from(allLabels);
+
+  // For mega-PRs, exclude component labels if there are too many
+  if (isMegaPR) {
+    const componentLabels = finalLabels.filter(label => label.startsWith('component: '));
+    if (componentLabels.length > COMPONENT_LABEL_THRESHOLD) {
+      finalLabels = finalLabels.filter(label => !label.startsWith('component: '));
+      console.log(`Mega-PR detected - excluding ${componentLabels.length} component labels (threshold: ${COMPONENT_LABEL_THRESHOLD})`);
+    }
+  }
+
+  // Handle too many labels (only for non-mega PRs)
+  const tooManyLabels = finalLabels.length > MAX_LABELS;
+  const originalLabelCount = finalLabels.length;
+
+  if (tooManyLabels && !isMegaPR && !finalLabels.includes('too-big')) {
+    finalLabels = ['too-big'];
+  }
+
+  console.log('Computed labels:', finalLabels.join(', '));
+
+  // Handle reviews
+  await handleReviews(github, context, finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, MAX_LABELS, TOO_BIG_THRESHOLD);
+
+  // Apply labels
+  await applyLabels(github, context, finalLabels);
+
+  // Remove old managed labels
+  await removeOldLabels(github, context, managedLabels, finalLabels);
+};

.github/scripts/auto-label-pr/labels.js

@@ -0,0 +1,41 @@
+// Apply labels to PR
+async function applyLabels(github, context, finalLabels) {
+  const { owner, repo } = context.repo;
+  const pr_number = context.issue.number;
+
+  if (finalLabels.length > 0) {
+    console.log(`Adding labels: ${finalLabels.join(', ')}`);
+    await github.rest.issues.addLabels({
+      owner,
+      repo,
+      issue_number: pr_number,
+      labels: finalLabels
+    });
+  }
+}
+
+// Remove old managed labels
+async function removeOldLabels(github, context, managedLabels, finalLabels) {
+  const { owner, repo } = context.repo;
+  const pr_number = context.issue.number;
+
+  const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
+  for (const label of labelsToRemove) {
+    console.log(`Removing label: ${label}`);
+    try {
+      await github.rest.issues.removeLabel({
+        owner,
+        repo,
+        issue_number: pr_number,
+        name: label
+      });
+    } catch (error) {
+      console.log(`Failed to remove label ${label}:`, error.message);
+    }
+  }
+}
+
+module.exports = {
+  applyLabels,
+  removeOldLabels
+};

.github/scripts/auto-label-pr/reviews.js

@@ -0,0 +1,141 @@
+const {
+  BOT_COMMENT_MARKER,
+  CODEOWNERS_MARKER,
+  TOO_BIG_MARKER,
+  DEPRECATED_COMPONENT_MARKER
+} = require('./constants');
+
+// Generate review messages
+function generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, prAuthor, MAX_LABELS, TOO_BIG_THRESHOLD) {
+  const messages = [];
+
+  // Deprecated component message
+  if (finalLabels.includes('deprecated-component') && deprecatedInfo && deprecatedInfo.length > 0) {
+    let message = `${DEPRECATED_COMPONENT_MARKER}\n### ⚠️ Deprecated Component\n\n`;
+    message += `Hey there @${prAuthor},\n`;
+    message += `This PR modifies one or more deprecated components. Please be aware:\n\n`;
+
+    for (const info of deprecatedInfo) {
+      message += `#### Component: \`${info.component}\`\n`;
+      message += `${info.message}\n\n`;
+    }
+
+    message += `Consider migrating to the recommended alternative if applicable.`;
+
+    messages.push(message);
+  }
+
+  // Too big message
+  if (finalLabels.includes('too-big')) {
+    const testAdditions = prFiles
+      .filter(file => file.filename.startsWith('tests/'))
+      .reduce((sum, file) => sum + (file.additions || 0), 0);
+    const testDeletions = prFiles
+      .filter(file => file.filename.startsWith('tests/'))
+      .reduce((sum, file) => sum + (file.deletions || 0), 0);
+    const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
+
+    const tooManyLabels = originalLabelCount > MAX_LABELS;
+    const tooManyChanges = nonTestChanges > TOO_BIG_THRESHOLD;
+
+    let message = `${TOO_BIG_MARKER}\n### 📦 Pull Request Size\n\n`;
+
+    if (tooManyLabels && tooManyChanges) {
+      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests) and affects ${originalLabelCount} different components/areas.`;
+    } else if (tooManyLabels) {
+      message += `This PR affects ${originalLabelCount} different components/areas.`;
+    } else {
+      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests).`;
+    }
+
+    message += ` Please consider breaking it down into smaller, focused PRs to make review easier and reduce the risk of conflicts.\n\n`;
+    message += `For guidance on breaking down large PRs, see: https://developers.esphome.io/contributing/submitting-your-work/#how-to-approach-large-submissions`;
+
+    messages.push(message);
+  }
+
+  // CODEOWNERS message
+  if (finalLabels.includes('needs-codeowners')) {
+    const message = `${CODEOWNERS_MARKER}\n### 👥 Code Ownership\n\n` +
+      `Hey there @${prAuthor},\n` +
+      `Thanks for submitting this pull request! Can you add yourself as a codeowner for this integration? ` +
+      `This way we can notify you if a bug report for this integration is reported.\n\n` +
+      `In \`__init__.py\` of the integration, please add:\n\n` +
+      `\`\`\`python\nCODEOWNERS = ["@${prAuthor}"]\n\`\`\`\n\n` +
+      `And run \`script/build_codeowners.py\``;
+
+    messages.push(message);
+  }
+
+  return messages;
+}
+
+// Handle reviews
+async function handleReviews(github, context, finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, MAX_LABELS, TOO_BIG_THRESHOLD) {
+  const { owner, repo } = context.repo;
+  const pr_number = context.issue.number;
+  const prAuthor = context.payload.pull_request.user.login;
+
+  const reviewMessages = generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, prAuthor, MAX_LABELS, TOO_BIG_THRESHOLD);
+  const hasReviewableLabels = finalLabels.some(label =>
+    ['too-big', 'needs-codeowners', 'deprecated-component'].includes(label)
+  );
+
+  const { data: reviews } = await github.rest.pulls.listReviews({
+    owner,
+    repo,
+    pull_number: pr_number
+  });
+
+  const botReviews = reviews.filter(review =>
+    review.user.type === 'Bot' &&
+    review.state === 'CHANGES_REQUESTED' &&
+    review.body && review.body.includes(BOT_COMMENT_MARKER)
+  );
+
+  if (hasReviewableLabels) {
+    const reviewBody = `${BOT_COMMENT_MARKER}\n\n${reviewMessages.join('\n\n---\n\n')}`;
+
+    if (botReviews.length > 0) {
+      // Update existing review
+      await github.rest.pulls.updateReview({
+        owner,
+        repo,
+        pull_number: pr_number,
+        review_id: botReviews[0].id,
+        body: reviewBody
+      });
+      console.log('Updated existing bot review');
+    } else {
+      // Create new review
+      await github.rest.pulls.createReview({
+        owner,
+        repo,
+        pull_number: pr_number,
+        body: reviewBody,
+        event: 'REQUEST_CHANGES'
+      });
+      console.log('Created new bot review');
+    }
+  } else if (botReviews.length > 0) {
+    // Dismiss existing reviews
+    for (const review of botReviews) {
+      try {
+        await github.rest.pulls.dismissReview({
+          owner,
+          repo,
+          pull_number: pr_number,
+          review_id: review.id,
+          message: 'Review dismissed: All requirements have been met'
+        });
+        console.log(`Dismissed bot review ${review.id}`);
+      } catch (error) {
+        console.log(`Failed to dismiss review ${review.id}:`, error.message);
+      }
+    }
+  }
+}
+
+module.exports = {
+  handleReviews
+};

.github/workflows/auto-label-pr.yml

@@ -22,11 +22,11 @@ jobs:
     if: github.event.action != 'labeled' || github.event.sender.type != 'Bot'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 # v2
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
@@ -36,627 +36,5 @@ jobs:
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |
-            const fs = require('fs');
-
-            // Constants
-            const SMALL_PR_THRESHOLD = parseInt('${{ env.SMALL_PR_THRESHOLD }}');
-            const MAX_LABELS = parseInt('${{ env.MAX_LABELS }}');
-            const TOO_BIG_THRESHOLD = parseInt('${{ env.TOO_BIG_THRESHOLD }}');
-            const COMPONENT_LABEL_THRESHOLD = parseInt('${{ env.COMPONENT_LABEL_THRESHOLD }}');
-            const BOT_COMMENT_MARKER = '<!-- auto-label-pr-bot -->';
-            const CODEOWNERS_MARKER = '<!-- codeowners-request -->';
-            const TOO_BIG_MARKER = '<!-- too-big-request -->';
-
-            const MANAGED_LABELS = [
-              'new-component',
-              'new-platform',
-              'new-target-platform',
-              'merging-to-release',
-              'merging-to-beta',
-              'core',
-              'small-pr',
-              'dashboard',
-              'github-actions',
-              'by-code-owner',
-              'has-tests',
-              'needs-tests',
-              'needs-docs',
-              'needs-codeowners',
-              'too-big',
-              'labeller-recheck',
-              'bugfix',
-              'new-feature',
-              'breaking-change',
-              'code-quality'
-            ];
-
-            const DOCS_PR_PATTERNS = [
-              /https:\/\/github\.com\/esphome\/esphome-docs\/pull\/\d+/,
-              /esphome\/esphome-docs#\d+/
-            ];
-
-            // Global state
-            const { owner, repo } = context.repo;
-            const pr_number = context.issue.number;
-
-            // Get current labels and PR data
-            const { data: currentLabelsData } = await github.rest.issues.listLabelsOnIssue({
-              owner,
-              repo,
-              issue_number: pr_number
-            });
-            const currentLabels = currentLabelsData.map(label => label.name);
-            const managedLabels = currentLabels.filter(label =>
-              label.startsWith('component: ') || MANAGED_LABELS.includes(label)
-            );
-
-            // Check for mega-PR early - if present, skip most automatic labeling
-            const isMegaPR = currentLabels.includes('mega-pr');
-
-            // Get all PR files with automatic pagination
-            const prFiles = await github.paginate(
-              github.rest.pulls.listFiles,
-              {
-                owner,
-                repo,
-                pull_number: pr_number
-              }
-            );
-
-            // Calculate data from PR files
-            const changedFiles = prFiles.map(file => file.filename);
-            const totalAdditions = prFiles.reduce((sum, file) => sum + (file.additions || 0), 0);
-            const totalDeletions = prFiles.reduce((sum, file) => sum + (file.deletions || 0), 0);
-            const totalChanges = totalAdditions + totalDeletions;
-
-            console.log('Current labels:', currentLabels.join(', '));
-            console.log('Changed files:', changedFiles.length);
-            console.log('Total changes:', totalChanges);
-            if (isMegaPR) {
-              console.log('Mega-PR detected - applying limited labeling logic');
-            }
-
-            // Fetch API data
-            async function fetchApiData() {
-              try {
-                const response = await fetch('https://data.esphome.io/components.json');
-                const componentsData = await response.json();
-                return {
-                  targetPlatforms: componentsData.target_platforms || [],
-                  platformComponents: componentsData.platform_components || []
-                };
-              } catch (error) {
-                console.log('Failed to fetch components data from API:', error.message);
-                return { targetPlatforms: [], platformComponents: [] };
-              }
-            }
-
-            // Strategy: Merge branch detection
-            async function detectMergeBranch() {
-              const labels = new Set();
-              const baseRef = context.payload.pull_request.base.ref;
-
-              if (baseRef === 'release') {
-                labels.add('merging-to-release');
-              } else if (baseRef === 'beta') {
-                labels.add('merging-to-beta');
-              }
-
-              return labels;
-            }
-
-            // Strategy: Component and platform labeling
-            async function detectComponentPlatforms(apiData) {
-              const labels = new Set();
-              const componentRegex = /^esphome\/components\/([^\/]+)\//;
-              const targetPlatformRegex = new RegExp(`^esphome\/components\/(${apiData.targetPlatforms.join('|')})/`);
-
-              for (const file of changedFiles) {
-                const componentMatch = file.match(componentRegex);
-                if (componentMatch) {
-                  labels.add(`component: ${componentMatch[1]}`);
-                }
-
-                const platformMatch = file.match(targetPlatformRegex);
-                if (platformMatch) {
-                  labels.add(`platform: ${platformMatch[1]}`);
-                }
-              }
-
-              return labels;
-            }
-
-            // Strategy: New component detection
-            async function detectNewComponents() {
-              const labels = new Set();
-              const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
-
-              for (const file of addedFiles) {
-                const componentMatch = file.match(/^esphome\/components\/([^\/]+)\/__init__\.py$/);
-                if (componentMatch) {
-                  try {
-                    const content = fs.readFileSync(file, 'utf8');
-                    if (content.includes('IS_TARGET_PLATFORM = True')) {
-                      labels.add('new-target-platform');
-                    }
-                  } catch (error) {
-                    console.log(`Failed to read content of ${file}:`, error.message);
-                  }
-                  labels.add('new-component');
-                }
-              }
-
-              return labels;
-            }
-
-            // Strategy: New platform detection
-            async function detectNewPlatforms(apiData) {
-              const labels = new Set();
-              const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
-
-              for (const file of addedFiles) {
-                const platformFileMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\.py$/);
-                if (platformFileMatch) {
-                  const [, component, platform] = platformFileMatch;
-                  if (apiData.platformComponents.includes(platform)) {
-                    labels.add('new-platform');
-                  }
-                }
-
-                const platformDirMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\/__init__\.py$/);
-                if (platformDirMatch) {
-                  const [, component, platform] = platformDirMatch;
-                  if (apiData.platformComponents.includes(platform)) {
-                    labels.add('new-platform');
-                  }
-                }
-              }
-
-              return labels;
-            }
-
-            // Strategy: Core files detection
-            async function detectCoreChanges() {
-              const labels = new Set();
-              const coreFiles = changedFiles.filter(file =>
-                file.startsWith('esphome/core/') ||
-                (file.startsWith('esphome/') && file.split('/').length === 2)
-              );
-
-              if (coreFiles.length > 0) {
-                labels.add('core');
-              }
-
-              return labels;
-            }
-
-            // Strategy: PR size detection
-            async function detectPRSize() {
-              const labels = new Set();
-
-              if (totalChanges <= SMALL_PR_THRESHOLD) {
-                labels.add('small-pr');
-                return labels;
-              }
-
-              const testAdditions = prFiles
-                .filter(file => file.filename.startsWith('tests/'))
-                .reduce((sum, file) => sum + (file.additions || 0), 0);
-              const testDeletions = prFiles
-                .filter(file => file.filename.startsWith('tests/'))
-                .reduce((sum, file) => sum + (file.deletions || 0), 0);
-
-              const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
-
-              // Don't add too-big if mega-pr label is already present
-              if (nonTestChanges > TOO_BIG_THRESHOLD && !isMegaPR) {
-                labels.add('too-big');
-              }
-
-              return labels;
-            }
-
-            // Strategy: Dashboard changes
-            async function detectDashboardChanges() {
-              const labels = new Set();
-              const dashboardFiles = changedFiles.filter(file =>
-                file.startsWith('esphome/dashboard/') ||
-                file.startsWith('esphome/components/dashboard_import/')
-              );
-
-              if (dashboardFiles.length > 0) {
-                labels.add('dashboard');
-              }
-
-              return labels;
-            }
-
-            // Strategy: GitHub Actions changes
-            async function detectGitHubActionsChanges() {
-              const labels = new Set();
-              const githubActionsFiles = changedFiles.filter(file =>
-                file.startsWith('.github/workflows/')
-              );
-
-              if (githubActionsFiles.length > 0) {
-                labels.add('github-actions');
-              }
-
-              return labels;
-            }
-
-            // Strategy: Code owner detection
-            async function detectCodeOwner() {
-              const labels = new Set();
-
-              try {
-                const { data: codeownersFile } = await github.rest.repos.getContent({
-                  owner,
-                  repo,
-                  path: 'CODEOWNERS',
-                });
-
-                const codeownersContent = Buffer.from(codeownersFile.content, 'base64').toString('utf8');
-                const prAuthor = context.payload.pull_request.user.login;
-
-                const codeownersLines = codeownersContent.split('\n')
-                  .map(line => line.trim())
-                  .filter(line => line && !line.startsWith('#'));
-
-                const codeownersRegexes = codeownersLines.map(line => {
-                  const parts = line.split(/\s+/);
-                  const pattern = parts[0];
-                  const owners = parts.slice(1);
-
-                  let regex;
-                  if (pattern.endsWith('*')) {
-                    const dir = pattern.slice(0, -1);
-                    regex = new RegExp(`^${dir.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}`);
-                  } else if (pattern.includes('*')) {
-                    // First escape all regex special chars except *, then replace * with .*
-                    const regexPattern = pattern
-                      .replace(/[.+?^${}()|[\]\\]/g, '\\$&')
-                      .replace(/\*/g, '.*');
-                    regex = new RegExp(`^${regexPattern}$`);
-                  } else {
-                    regex = new RegExp(`^${pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}$`);
-                  }
-
-                  return { regex, owners };
-                });
-
-                for (const file of changedFiles) {
-                  for (const { regex, owners } of codeownersRegexes) {
-                    if (regex.test(file) && owners.some(owner => owner === `@${prAuthor}`)) {
-                      labels.add('by-code-owner');
-                      return labels;
-                    }
-                  }
-                }
-              } catch (error) {
-                console.log('Failed to read or parse CODEOWNERS file:', error.message);
-              }
-
-              return labels;
-            }
-
-            // Strategy: Test detection
-            async function detectTests() {
-              const labels = new Set();
-              const testFiles = changedFiles.filter(file => file.startsWith('tests/'));
-
-              if (testFiles.length > 0) {
-                labels.add('has-tests');
-              }
-
-              return labels;
-            }
-
-            // Strategy: PR Template Checkbox detection
-            async function detectPRTemplateCheckboxes() {
-              const labels = new Set();
-              const prBody = context.payload.pull_request.body || '';
-
-              console.log('Checking PR template checkboxes...');
-
-              // Check for checked checkboxes in the "Types of changes" section
-              const checkboxPatterns = [
-                { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
-                { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
-                { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
-                { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
-              ];
-
-              for (const { pattern, label } of checkboxPatterns) {
-                if (pattern.test(prBody)) {
-                  console.log(`Found checked checkbox for: ${label}`);
-                  labels.add(label);
-                }
-              }
-
-              return labels;
-            }
-
-            // Strategy: Requirements detection
-            async function detectRequirements(allLabels) {
-              const labels = new Set();
-
-              // Check for missing tests
-              if ((allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) && !allLabels.has('has-tests')) {
-                labels.add('needs-tests');
-              }
-
-              // Check for missing docs
-              if (allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) {
-                const prBody = context.payload.pull_request.body || '';
-                const hasDocsLink = DOCS_PR_PATTERNS.some(pattern => pattern.test(prBody));
-
-                if (!hasDocsLink) {
-                  labels.add('needs-docs');
-                }
-              }
-
-              // Check for missing CODEOWNERS
-              if (allLabels.has('new-component')) {
-                const codeownersModified = prFiles.some(file =>
-                  file.filename === 'CODEOWNERS' &&
-                  (file.status === 'modified' || file.status === 'added') &&
-                  (file.additions || 0) > 0
-                );
-
-                if (!codeownersModified) {
-                  labels.add('needs-codeowners');
-                }
-              }
-
-              return labels;
-            }
-
-            // Generate review messages
-            function generateReviewMessages(finalLabels) {
-              const messages = [];
-              const prAuthor = context.payload.pull_request.user.login;
-
-              // Too big message
-              if (finalLabels.includes('too-big')) {
-                const testAdditions = prFiles
-                  .filter(file => file.filename.startsWith('tests/'))
-                  .reduce((sum, file) => sum + (file.additions || 0), 0);
-                const testDeletions = prFiles
-                  .filter(file => file.filename.startsWith('tests/'))
-                  .reduce((sum, file) => sum + (file.deletions || 0), 0);
-                const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
-
-                const tooManyLabels = finalLabels.length > MAX_LABELS;
-                const tooManyChanges = nonTestChanges > TOO_BIG_THRESHOLD;
-
-                let message = `${TOO_BIG_MARKER}\n### 📦 Pull Request Size\n\n`;
-
-                if (tooManyLabels && tooManyChanges) {
-                  message += `This PR is too large with ${nonTestChanges} line changes (excluding tests) and affects ${finalLabels.length} different components/areas.`;
-                } else if (tooManyLabels) {
-                  message += `This PR affects ${finalLabels.length} different components/areas.`;
-                } else {
-                  message += `This PR is too large with ${nonTestChanges} line changes (excluding tests).`;
-                }
-
-                message += ` Please consider breaking it down into smaller, focused PRs to make review easier and reduce the risk of conflicts.\n\n`;
-                message += `For guidance on breaking down large PRs, see: https://developers.esphome.io/contributing/submitting-your-work/#how-to-approach-large-submissions`;
-
-                messages.push(message);
-              }
-
-              // CODEOWNERS message
-              if (finalLabels.includes('needs-codeowners')) {
-                const message = `${CODEOWNERS_MARKER}\n### 👥 Code Ownership\n\n` +
-                  `Hey there @${prAuthor},\n` +
-                  `Thanks for submitting this pull request! Can you add yourself as a codeowner for this integration? ` +
-                  `This way we can notify you if a bug report for this integration is reported.\n\n` +
-                  `In \`__init__.py\` of the integration, please add:\n\n` +
-                  `\`\`\`python\nCODEOWNERS = ["@${prAuthor}"]\n\`\`\`\n\n` +
-                  `And run \`script/build_codeowners.py\``;
-
-                messages.push(message);
-              }
-
-              return messages;
-            }
-
-            // Handle reviews
-            async function handleReviews(finalLabels) {
-              const reviewMessages = generateReviewMessages(finalLabels);
-              const hasReviewableLabels = finalLabels.some(label =>
-                ['too-big', 'needs-codeowners'].includes(label)
-              );
-
-              const { data: reviews } = await github.rest.pulls.listReviews({
-                owner,
-                repo,
-                pull_number: pr_number
-              });
-
-              const botReviews = reviews.filter(review =>
-                review.user.type === 'Bot' &&
-                review.state === 'CHANGES_REQUESTED' &&
-                review.body && review.body.includes(BOT_COMMENT_MARKER)
-              );
-
-              if (hasReviewableLabels) {
-                const reviewBody = `${BOT_COMMENT_MARKER}\n\n${reviewMessages.join('\n\n---\n\n')}`;
-
-                if (botReviews.length > 0) {
-                  // Update existing review
-                  await github.rest.pulls.updateReview({
-                    owner,
-                    repo,
-                    pull_number: pr_number,
-                    review_id: botReviews[0].id,
-                    body: reviewBody
-                  });
-                  console.log('Updated existing bot review');
-                } else {
-                  // Create new review
-                  await github.rest.pulls.createReview({
-                    owner,
-                    repo,
-                    pull_number: pr_number,
-                    body: reviewBody,
-                    event: 'REQUEST_CHANGES'
-                  });
-                  console.log('Created new bot review');
-                }
-              } else if (botReviews.length > 0) {
-                // Dismiss existing reviews
-                for (const review of botReviews) {
-                  try {
-                    await github.rest.pulls.dismissReview({
-                      owner,
-                      repo,
-                      pull_number: pr_number,
-                      review_id: review.id,
-                      message: 'Review dismissed: All requirements have been met'
-                    });
-                    console.log(`Dismissed bot review ${review.id}`);
-                  } catch (error) {
-                    console.log(`Failed to dismiss review ${review.id}:`, error.message);
-                  }
-                }
-              }
-            }
-
-            // Main execution
-            const apiData = await fetchApiData();
-            const baseRef = context.payload.pull_request.base.ref;
-
-            // Early exit for non-dev branches
-            if (baseRef !== 'dev') {
-              const branchLabels = await detectMergeBranch();
-              const finalLabels = Array.from(branchLabels);
-
-              console.log('Computed labels (merge branch only):', finalLabels.join(', '));
-
-              // Apply labels
-              if (finalLabels.length > 0) {
-                await github.rest.issues.addLabels({
-                  owner,
-                  repo,
-                  issue_number: pr_number,
-                  labels: finalLabels
-                });
-              }
-
-              // Remove old managed labels
-              const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
-              for (const label of labelsToRemove) {
-                try {
-                  await github.rest.issues.removeLabel({
-                    owner,
-                    repo,
-                    issue_number: pr_number,
-                    name: label
-                  });
-                } catch (error) {
-                  console.log(`Failed to remove label ${label}:`, error.message);
-                }
-              }
-
-              return;
-            }
-
-            // Run all strategies
-            const [
-              branchLabels,
-              componentLabels,
-              newComponentLabels,
-              newPlatformLabels,
-              coreLabels,
-              sizeLabels,
-              dashboardLabels,
-              actionsLabels,
-              codeOwnerLabels,
-              testLabels,
-              checkboxLabels
-            ] = await Promise.all([
-              detectMergeBranch(),
-              detectComponentPlatforms(apiData),
-              detectNewComponents(),
-              detectNewPlatforms(apiData),
-              detectCoreChanges(),
-              detectPRSize(),
-              detectDashboardChanges(),
-              detectGitHubActionsChanges(),
-              detectCodeOwner(),
-              detectTests(),
-              detectPRTemplateCheckboxes()
-            ]);
-
-            // Combine all labels
-            const allLabels = new Set([
-              ...branchLabels,
-              ...componentLabels,
-              ...newComponentLabels,
-              ...newPlatformLabels,
-              ...coreLabels,
-              ...sizeLabels,
-              ...dashboardLabels,
-              ...actionsLabels,
-              ...codeOwnerLabels,
-              ...testLabels,
-              ...checkboxLabels
-            ]);
-
-            // Detect requirements based on all other labels
-            const requirementLabels = await detectRequirements(allLabels);
-            for (const label of requirementLabels) {
-              allLabels.add(label);
-            }
-
-            let finalLabels = Array.from(allLabels);
-
-            // For mega-PRs, exclude component labels if there are too many
-            if (isMegaPR) {
-              const componentLabels = finalLabels.filter(label => label.startsWith('component: '));
-              if (componentLabels.length > COMPONENT_LABEL_THRESHOLD) {
-                finalLabels = finalLabels.filter(label => !label.startsWith('component: '));
-                console.log(`Mega-PR detected - excluding ${componentLabels.length} component labels (threshold: ${COMPONENT_LABEL_THRESHOLD})`);
-              }
-            }
-
-            // Handle too many labels (only for non-mega PRs)
-            const tooManyLabels = finalLabels.length > MAX_LABELS;
-
-            if (tooManyLabels && !isMegaPR && !finalLabels.includes('too-big')) {
-              finalLabels = ['too-big'];
-            }
-
-            console.log('Computed labels:', finalLabels.join(', '));
-
-            // Handle reviews
-            await handleReviews(finalLabels);
-
-            // Apply labels
-            if (finalLabels.length > 0) {
-              console.log(`Adding labels: ${finalLabels.join(', ')}`);
-              await github.rest.issues.addLabels({
-                owner,
-                repo,
-                issue_number: pr_number,
-                labels: finalLabels
-              });
-            }
-
-            // Remove old managed labels
-            const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
-            for (const label of labelsToRemove) {
-              console.log(`Removing label: ${label}`);
-              try {
-                await github.rest.issues.removeLabel({
-                  owner,
-                  repo,
-                  issue_number: pr_number,
-                  name: label
-                });
-              } catch (error) {
-                console.log(`Failed to remove label ${label}:`, error.message);
-              }
-            }
+            const script = require('./.github/scripts/auto-label-pr/index.js');
+            await script({ github, context });

.github/workflows/ci-api-proto.yml

@@ -21,9 +21,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
 
@@ -62,7 +62,7 @@ jobs:
         run: git diff
       - if: failure()
         name: Archive artifacts
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: generated-proto-files
           path: |

.github/workflows/ci-clang-tidy-hash.yml

@@ -21,10 +21,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
 

.github/workflows/ci-docker.yml

@@ -43,13 +43,13 @@ jobs:
           - "docker"
           # - "lint"
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Set TAG
         run: |

.github/workflows/ci-memory-impact-comment.yml

@@ -28,25 +28,28 @@ jobs:
         run: |
           # Get PR details by searching for PR with matching head SHA
           # The workflow_run.pull_requests field is often empty for forks
+          # Use paginate to handle repos with many open PRs
           head_sha="${{ github.event.workflow_run.head_sha }}"
-          pr_data=$(gh api "/repos/${{ github.repository }}/commits/$head_sha/pulls" \
-            --jq '.[0] | {number: .number, base_ref: .base.ref}')
-          if [ -z "$pr_data" ] || [ "$pr_data" == "null" ]; then
+          pr_data=$(gh api --paginate "/repos/${{ github.repository }}/pulls" \
+            --jq ".[] | select(.head.sha == \"$head_sha\") | {number: .number, base_ref: .base.ref}" \
+            | head -n 1)
+
+          if [ -z "$pr_data" ]; then
             echo "No PR found for SHA $head_sha, skipping"
-            echo "skip=true" >> $GITHUB_OUTPUT
+            echo "skip=true" >> "$GITHUB_OUTPUT"
             exit 0
           fi
 
           pr_number=$(echo "$pr_data" | jq -r '.number')
           base_ref=$(echo "$pr_data" | jq -r '.base_ref')
 
-          echo "pr_number=$pr_number" >> $GITHUB_OUTPUT
-          echo "base_ref=$base_ref" >> $GITHUB_OUTPUT
+          echo "pr_number=$pr_number" >> "$GITHUB_OUTPUT"
+          echo "base_ref=$base_ref" >> "$GITHUB_OUTPUT"
           echo "Found PR #$pr_number targeting base branch: $base_ref"
 
       - name: Check out code from base repository
         if: steps.pr.outputs.skip != 'true'
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           # Always check out from the base repository (esphome/esphome), never from forks
           # Use the PR's target branch to ensure we run trusted code from the main repo
@@ -87,9 +90,9 @@ jobs:
         if: steps.pr.outputs.skip != 'true'
         run: |
           if [ -f ./memory-analysis/memory-analysis-target.json ] && [ -f ./memory-analysis/memory-analysis-pr.json ]; then
-            echo "found=true" >> $GITHUB_OUTPUT
+            echo "found=true" >> "$GITHUB_OUTPUT"
           else
-            echo "found=false" >> $GITHUB_OUTPUT
+            echo "found=false" >> "$GITHUB_OUTPUT"
             echo "Memory analysis artifacts not found, skipping comment"
           fi
 

.github/workflows/ci.yml

@@ -36,18 +36,18 @@ jobs:
       cache-key: ${{ steps.cache-key.outputs.key }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Generate cache-key
         id: cache-key
         run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Restore Python virtual environment
         id: cache-venv
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           # yamllint disable-line rule:line-length
@@ -70,7 +70,7 @@ jobs:
     if: needs.determine-jobs.outputs.python-linters == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -91,7 +91,7 @@ jobs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -114,7 +114,7 @@ jobs:
       matrix:
         python-version:
           - "3.11"
-          - "3.14"
+          - "3.13"
         os:
           - ubuntu-latest
           - macOS-latest
@@ -123,16 +123,16 @@ jobs:
           # Minimize CI resource usage
           # by only running the Python version
           # version used for docker images on Windows and macOS
-          - python-version: "3.14"
+          - python-version: "3.13"
             os: windows-latest
-          - python-version: "3.14"
+          - python-version: "3.13"
             os: macOS-latest
     runs-on: ${{ matrix.os }}
     needs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         id: restore-python
         uses: ./.github/actions/restore-python
@@ -152,12 +152,12 @@ jobs:
           . venv/bin/activate
           pytest -vv --cov-report=xml --tb=native -n auto tests --ignore=tests/integration/
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@5a1091511ad55cbe89839c7260b706298ca349f7 # v5.5.1
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Save Python virtual environment cache
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.restore-python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -170,15 +170,20 @@ jobs:
     outputs:
       integration-tests: ${{ steps.determine.outputs.integration-tests }}
       clang-tidy: ${{ steps.determine.outputs.clang-tidy }}
+      clang-tidy-mode: ${{ steps.determine.outputs.clang-tidy-mode }}
       python-linters: ${{ steps.determine.outputs.python-linters }}
       changed-components: ${{ steps.determine.outputs.changed-components }}
       changed-components-with-tests: ${{ steps.determine.outputs.changed-components-with-tests }}
       directly-changed-components-with-tests: ${{ steps.determine.outputs.directly-changed-components-with-tests }}
       component-test-count: ${{ steps.determine.outputs.component-test-count }}
+      changed-cpp-file-count: ${{ steps.determine.outputs.changed-cpp-file-count }}
       memory_impact: ${{ steps.determine.outputs.memory-impact }}
+      cpp-unit-tests-run-all: ${{ steps.determine.outputs.cpp-unit-tests-run-all }}
+      cpp-unit-tests-components: ${{ steps.determine.outputs.cpp-unit-tests-components }}
+      component-test-batches: ${{ steps.determine.outputs.component-test-batches }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           # Fetch enough history to find the merge base
           fetch-depth: 2
@@ -187,6 +192,11 @@ jobs:
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
+      - name: Restore components graph cache
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: .temp/components_graph.json
+          key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
       - name: Determine which tests to run
         id: determine
         env:
@@ -200,12 +210,23 @@ jobs:
           # Extract individual fields
           echo "integration-tests=$(echo "$output" | jq -r '.integration_tests')" >> $GITHUB_OUTPUT
           echo "clang-tidy=$(echo "$output" | jq -r '.clang_tidy')" >> $GITHUB_OUTPUT
+          echo "clang-tidy-mode=$(echo "$output" | jq -r '.clang_tidy_mode')" >> $GITHUB_OUTPUT
           echo "python-linters=$(echo "$output" | jq -r '.python_linters')" >> $GITHUB_OUTPUT
           echo "changed-components=$(echo "$output" | jq -c '.changed_components')" >> $GITHUB_OUTPUT
           echo "changed-components-with-tests=$(echo "$output" | jq -c '.changed_components_with_tests')" >> $GITHUB_OUTPUT
           echo "directly-changed-components-with-tests=$(echo "$output" | jq -c '.directly_changed_components_with_tests')" >> $GITHUB_OUTPUT
           echo "component-test-count=$(echo "$output" | jq -r '.component_test_count')" >> $GITHUB_OUTPUT
+          echo "changed-cpp-file-count=$(echo "$output" | jq -r '.changed_cpp_file_count')" >> $GITHUB_OUTPUT
           echo "memory-impact=$(echo "$output" | jq -c '.memory_impact')" >> $GITHUB_OUTPUT
+          echo "cpp-unit-tests-run-all=$(echo "$output" | jq -r '.cpp_unit_tests_run_all')" >> $GITHUB_OUTPUT
+          echo "cpp-unit-tests-components=$(echo "$output" | jq -c '.cpp_unit_tests_components')" >> $GITHUB_OUTPUT
+          echo "component-test-batches=$(echo "$output" | jq -c '.component_test_batches')" >> $GITHUB_OUTPUT
+      - name: Save components graph cache
+        if: github.ref == 'refs/heads/dev'
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: .temp/components_graph.json
+          key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
 
   integration-tests:
     name: Run integration tests
@@ -216,15 +237,15 @@ jobs:
     if: needs.determine-jobs.outputs.integration-tests == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python 3.13
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.13"
       - name: Restore Python virtual environment
         id: cache-venv
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -243,7 +264,34 @@ jobs:
           . venv/bin/activate
           pytest -vv --no-cov --tb=native -n auto tests/integration/
 
-  clang-tidy:
+  cpp-unit-tests:
+    name: Run C++ unit tests
+    runs-on: ubuntu-24.04
+    needs:
+      - common
+      - determine-jobs
+    if: github.event_name == 'pull_request' && (needs.determine-jobs.outputs.cpp-unit-tests-run-all == 'true' || needs.determine-jobs.outputs.cpp-unit-tests-components != '[]')
+    steps:
+      - name: Check out code from GitHub
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Restore Python
+        uses: ./.github/actions/restore-python
+        with:
+          python-version: ${{ env.DEFAULT_PYTHON }}
+          cache-key: ${{ needs.common.outputs.cache-key }}
+
+      - name: Run cpp_unit_test.py
+        run: |
+          . venv/bin/activate
+          if [ "${{ needs.determine-jobs.outputs.cpp-unit-tests-run-all }}" = "true" ]; then
+            script/cpp_unit_test.py --all
+          else
+            ARGS=$(echo '${{ needs.determine-jobs.outputs.cpp-unit-tests-components }}' | jq -r '.[] | @sh' | xargs)
+            script/cpp_unit_test.py $ARGS
+          fi
+
+  clang-tidy-single:
     name: ${{ matrix.name }}
     runs-on: ubuntu-24.04
     needs:
@@ -261,22 +309,6 @@ jobs:
             name: Run script/clang-tidy for ESP8266
             options: --environment esp8266-arduino-tidy --grep USE_ESP8266
             pio_cache_key: tidyesp8266
-          - id: clang-tidy
-            name: Run script/clang-tidy for ESP32 Arduino 1/4
-            options: --environment esp32-arduino-tidy --split-num 4 --split-at 1
-            pio_cache_key: tidyesp32
-          - id: clang-tidy
-            name: Run script/clang-tidy for ESP32 Arduino 2/4
-            options: --environment esp32-arduino-tidy --split-num 4 --split-at 2
-            pio_cache_key: tidyesp32
-          - id: clang-tidy
-            name: Run script/clang-tidy for ESP32 Arduino 3/4
-            options: --environment esp32-arduino-tidy --split-num 4 --split-at 3
-            pio_cache_key: tidyesp32
-          - id: clang-tidy
-            name: Run script/clang-tidy for ESP32 Arduino 4/4
-            options: --environment esp32-arduino-tidy --split-num 4 --split-at 4
-            pio_cache_key: tidyesp32
           - id: clang-tidy
             name: Run script/clang-tidy for ESP32 IDF
             options: --environment esp32-idf-tidy --grep USE_ESP_IDF
@@ -289,7 +321,7 @@ jobs:
 
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -302,14 +334,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
 
       - name: Cache platformio
         if: github.ref != 'refs/heads/dev'
-        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
@@ -357,45 +389,165 @@ jobs:
         # yamllint disable-line rule:line-length
         if: always()
 
-  test-build-components-splitter:
-    name: Split components for intelligent grouping (40 weighted per batch)
+  clang-tidy-nosplit:
+    name: Run script/clang-tidy for ESP32 Arduino
     runs-on: ubuntu-24.04
     needs:
       - common
       - determine-jobs
-    if: github.event_name == 'pull_request' && fromJSON(needs.determine-jobs.outputs.component-test-count) > 0
-    outputs:
-      matrix: ${{ steps.split.outputs.components }}
+    if: needs.determine-jobs.outputs.clang-tidy-mode == 'nosplit'
+    env:
+      GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          # Need history for HEAD~1 to work for checking changed files
+          fetch-depth: 2
+
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
-      - name: Split components intelligently based on bus configurations
-        id: split
+
+      - name: Cache platformio
+        if: github.ref == 'refs/heads/dev'
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: ~/.platformio
+          key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
+
+      - name: Cache platformio
+        if: github.ref != 'refs/heads/dev'
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: ~/.platformio
+          key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
+
+      - name: Register problem matchers
+        run: |
+          echo "::add-matcher::.github/workflows/matchers/gcc.json"
+          echo "::add-matcher::.github/workflows/matchers/clang-tidy.json"
+
+      - name: Check if full clang-tidy scan needed
+        id: check_full_scan
         run: |
           . venv/bin/activate
-
-          # Use intelligent splitter that groups components with same bus configs
-          components='${{ needs.determine-jobs.outputs.changed-components-with-tests }}'
-
-          # Only isolate directly changed components when targeting dev branch
-          # For beta/release branches, group everything for faster CI
-          if [[ "${{ github.base_ref }}" == beta* ]] || [[ "${{ github.base_ref }}" == release* ]]; then
-            directly_changed='[]'
-            echo "Target branch: ${{ github.base_ref }} - grouping all components"
+          if python script/clang_tidy_hash.py --check; then
+            echo "full_scan=true" >> $GITHUB_OUTPUT
+            echo "reason=hash_changed" >> $GITHUB_OUTPUT
           else
-            directly_changed='${{ needs.determine-jobs.outputs.directly-changed-components-with-tests }}'
-            echo "Target branch: ${{ github.base_ref }} - isolating directly changed components"
+            echo "full_scan=false" >> $GITHUB_OUTPUT
+            echo "reason=normal" >> $GITHUB_OUTPUT
           fi
 
-          echo "Splitting components intelligently..."
-          output=$(python3 script/split_components_for_ci.py --components "$components" --directly-changed "$directly_changed" --batch-size 40 --output github)
+      - name: Run clang-tidy
+        run: |
+          . venv/bin/activate
+          if [ "${{ steps.check_full_scan.outputs.full_scan }}" = "true" ]; then
+            echo "Running FULL clang-tidy scan (hash changed)"
+            script/clang-tidy --all-headers --fix --environment esp32-arduino-tidy
+          else
+            echo "Running clang-tidy on changed files only"
+            script/clang-tidy --all-headers --fix --changed --environment esp32-arduino-tidy
+          fi
+        env:
+          # Also cache libdeps, store them in a ~/.platformio subfolder
+          PLATFORMIO_LIBDEPS_DIR: ~/.platformio/libdeps
 
-          echo "$output" >> $GITHUB_OUTPUT
+      - name: Suggested changes
+        run: script/ci-suggest-changes
+        if: always()
+
+  clang-tidy-split:
+    name: ${{ matrix.name }}
+    runs-on: ubuntu-24.04
+    needs:
+      - common
+      - determine-jobs
+    if: needs.determine-jobs.outputs.clang-tidy-mode == 'split'
+    env:
+      GH_TOKEN: ${{ github.token }}
+    strategy:
+      fail-fast: false
+      max-parallel: 2
+      matrix:
+        include:
+          - id: clang-tidy
+            name: Run script/clang-tidy for ESP32 Arduino 1/4
+            options: --environment esp32-arduino-tidy --split-num 4 --split-at 1
+          - id: clang-tidy
+            name: Run script/clang-tidy for ESP32 Arduino 2/4
+            options: --environment esp32-arduino-tidy --split-num 4 --split-at 2
+          - id: clang-tidy
+            name: Run script/clang-tidy for ESP32 Arduino 3/4
+            options: --environment esp32-arduino-tidy --split-num 4 --split-at 3
+          - id: clang-tidy
+            name: Run script/clang-tidy for ESP32 Arduino 4/4
+            options: --environment esp32-arduino-tidy --split-num 4 --split-at 4
+
+    steps:
+      - name: Check out code from GitHub
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          # Need history for HEAD~1 to work for checking changed files
+          fetch-depth: 2
+
+      - name: Restore Python
+        uses: ./.github/actions/restore-python
+        with:
+          python-version: ${{ env.DEFAULT_PYTHON }}
+          cache-key: ${{ needs.common.outputs.cache-key }}
+
+      - name: Cache platformio
+        if: github.ref == 'refs/heads/dev'
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: ~/.platformio
+          key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
+
+      - name: Cache platformio
+        if: github.ref != 'refs/heads/dev'
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        with:
+          path: ~/.platformio
+          key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
+
+      - name: Register problem matchers
+        run: |
+          echo "::add-matcher::.github/workflows/matchers/gcc.json"
+          echo "::add-matcher::.github/workflows/matchers/clang-tidy.json"
+
+      - name: Check if full clang-tidy scan needed
+        id: check_full_scan
+        run: |
+          . venv/bin/activate
+          if python script/clang_tidy_hash.py --check; then
+            echo "full_scan=true" >> $GITHUB_OUTPUT
+            echo "reason=hash_changed" >> $GITHUB_OUTPUT
+          else
+            echo "full_scan=false" >> $GITHUB_OUTPUT
+            echo "reason=normal" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Run clang-tidy
+        run: |
+          . venv/bin/activate
+          if [ "${{ steps.check_full_scan.outputs.full_scan }}" = "true" ]; then
+            echo "Running FULL clang-tidy scan (hash changed)"
+            script/clang-tidy --all-headers --fix ${{ matrix.options }}
+          else
+            echo "Running clang-tidy on changed files only"
+            script/clang-tidy --all-headers --fix --changed ${{ matrix.options }}
+          fi
+        env:
+          # Also cache libdeps, store them in a ~/.platformio subfolder
+          PLATFORMIO_LIBDEPS_DIR: ~/.platformio/libdeps
+
+      - name: Suggested changes
+        run: script/ci-suggest-changes
+        if: always()
 
   test-build-components-split:
     name: Test components batch (${{ matrix.components }})
@@ -403,13 +555,12 @@ jobs:
     needs:
       - common
       - determine-jobs
-      - test-build-components-splitter
     if: github.event_name == 'pull_request' && fromJSON(needs.determine-jobs.outputs.component-test-count) > 0
     strategy:
       fail-fast: false
       max-parallel: ${{ (startsWith(github.base_ref, 'beta') || startsWith(github.base_ref, 'release')) && 8 || 4 }}
       matrix:
-        components: ${{ fromJson(needs.test-build-components-splitter.outputs.matrix) }}
+        components: ${{ fromJson(needs.determine-jobs.outputs.component-test-batches) }}
     steps:
       - name: Show disk space
         run: |
@@ -426,27 +577,12 @@ jobs:
           version: 1.0
 
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
-
-      - name: Cache platformio
-        if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
-        with:
-          path: ~/.platformio
-          key: platformio-test-${{ hashFiles('platformio.ini') }}
-
-      - name: Cache platformio
-        if: github.ref != 'refs/heads/dev'
-        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
-        with:
-          path: ~/.platformio
-          key: platformio-test-${{ hashFiles('platformio.ini') }}
-
       - name: Validate and compile components with intelligent grouping
         run: |
           . venv/bin/activate
@@ -526,13 +662,13 @@ jobs:
     if: github.event_name == 'pull_request' && !startsWith(github.base_ref, 'beta') && !startsWith(github.base_ref, 'release')
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
-      - uses: esphome/action@43cd1109c09c544d97196f7730ee5b2e0cc6d81e # v3.0.1 fork with pinned actions/cache
+      - uses: esphome/pre-commit-action@43cd1109c09c544d97196f7730ee5b2e0cc6d81e # v3.0.1 fork with pinned actions/cache
         env:
           SKIP: pylint,clang-tidy-hash
       - uses: pre-commit-ci/lite-action@5d6cc0eb514c891a40562a58a8e71576c5c7fb43 # v1.1.0
@@ -552,7 +688,7 @@ jobs:
       skip: ${{ steps.check-script.outputs.skip }}
     steps:
       - name: Check out target branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           ref: ${{ github.base_ref }}
 
@@ -599,7 +735,7 @@ jobs:
       - name: Restore cached memory analysis
         id: cache-memory-analysis
         if: steps.check-script.outputs.skip != 'true'
-        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: memory-analysis-target.json
           key: ${{ steps.cache-key.outputs.cache-key }}
@@ -623,7 +759,7 @@ jobs:
 
       - name: Cache platformio
         if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
-        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-memory-${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}-${{ hashFiles('platformio.ini') }}
@@ -664,7 +800,7 @@ jobs:
 
       - name: Save memory analysis to cache
         if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true' && steps.build.outcome == 'success'
-        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: memory-analysis-target.json
           key: ${{ steps.cache-key.outputs.cache-key }}
@@ -685,7 +821,7 @@ jobs:
           fi
 
       - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: memory-analysis-target
           path: memory-analysis-target.json
@@ -704,14 +840,14 @@ jobs:
       flash_usage: ${{ steps.extract.outputs.flash_usage }}
     steps:
       - name: Check out PR branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Cache platformio
-        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-memory-${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}-${{ hashFiles('platformio.ini') }}
@@ -749,7 +885,7 @@ jobs:
             --platform "$platform"
 
       - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: memory-analysis-pr
           path: memory-analysis-pr.json
@@ -772,20 +908,20 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Download target analysis JSON
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           name: memory-analysis-target
           path: ./memory-analysis
         continue-on-error: true
       - name: Download PR analysis JSON
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           name: memory-analysis-pr
           path: ./memory-analysis
@@ -812,9 +948,10 @@ jobs:
       - pylint
       - pytest
       - integration-tests
-      - clang-tidy
+      - clang-tidy-single
+      - clang-tidy-nosplit
+      - clang-tidy-split
       - determine-jobs
-      - test-build-components-splitter
       - test-build-components-split
       - pre-commit-ci-lite
       - memory-impact-target-branch
@@ -822,13 +959,13 @@ jobs:
       - memory-impact-comment
     if: always()
     steps:
-      - name: Success
-        if: ${{ !(contains(needs.*.result, 'failure')) }}
-        run: exit 0
-      - name: Failure
-        if: ${{ contains(needs.*.result, 'failure') }}
+      - name: Check job results
         env:
-          JSON_DOC: ${{ toJSON(needs) }}
+          NEEDS_JSON: ${{ toJSON(needs) }}
         run: |
-          echo $JSON_DOC | jq
-          exit 1
+          # memory-impact-target-branch is allowed to fail without blocking CI.
+          # This job builds the target branch (dev/beta/release) which may fail because:
+          # 1. The target branch has a build issue independent of this PR
+          # 2. This PR fixes a build issue on the target branch
+          # In either case, we only care that the PR branch builds successfully.
+          echo "$NEEDS_JSON" | jq -e 'del(.["memory-impact-target-branch"]) | all(.result != "failure")'

.github/workflows/codeowner-review-request.yml

@@ -21,7 +21,7 @@ permissions:
 jobs:
   request-codeowner-reviews:
     name: Run
-    if: ${{ !github.event.pull_request.draft }}
+    if: ${{ github.repository == 'esphome/esphome' && !github.event.pull_request.draft }}
     runs-on: ubuntu-latest
     steps:
       - name: Request reviews from component codeowners

.github/workflows/codeql.yml

@@ -54,11 +54,11 @@ jobs:
             # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@16140ae1a102900babc80a33c44059580f687047 # v4.30.9
+        uses: github/codeql-action/init@45cbd0c69e560cd9e7cd7f8c32362050c9b7ded2 # v4.32.2
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@16140ae1a102900babc80a33c44059580f687047 # v4.30.9
+        uses: github/codeql-action/analyze@45cbd0c69e560cd9e7cd7f8c32362050c9b7ded2 # v4.32.2
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       branch_build: ${{ steps.tag.outputs.branch_build }}
       deploy_env: ${{ steps.tag.outputs.deploy_env }}
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Get tag
         id: tag
         # yamllint disable rule:line-length
@@ -60,9 +60,9 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.x"
       - name: Build
@@ -92,22 +92,22 @@ jobs:
             os: "ubuntu-24.04-arm"
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Log in to docker hub
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Log in to the GitHub container registry
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -138,7 +138,7 @@ jobs:
       #     version: ${{ needs.init.outputs.tag }}
 
       - name: Upload digests
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: digests-${{ matrix.platform.arch }}
           path: /tmp/digests
@@ -168,27 +168,27 @@ jobs:
           - ghcr
           - dockerhub
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Download digests
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           pattern: digests-*
           path: /tmp/digests
           merge-multiple: true
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Log in to docker hub
         if: matrix.registry == 'dockerhub'
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Log in to the GitHub container registry
         if: matrix.registry == 'ghcr'
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -219,10 +219,19 @@ jobs:
       - init
       - deploy-manifest
     steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: home-assistant-addon
+
       - name: Trigger Workflow
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          github-token: ${{ secrets.DEPLOY_HA_ADDON_REPO_TOKEN }}
+          github-token: ${{ steps.generate-token.outputs.token }}
           script: |
             let description = "ESPHome";
             if (context.eventName == "release") {
@@ -245,10 +254,19 @@ jobs:
     needs: [init]
     environment: ${{ needs.init.outputs.deploy_env }}
     steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: esphome-schema
+
       - name: Trigger Workflow
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          github-token: ${{ secrets.DEPLOY_ESPHOME_SCHEMA_REPO_TOKEN }}
+          github-token: ${{ steps.generate-token.outputs.token }}
           script: |
             github.rest.actions.createWorkflowDispatch({
               owner: "esphome",
@@ -259,3 +277,34 @@ jobs:
                 version: "${{ needs.init.outputs.tag }}",
               }
             })
+
+  version-notifier:
+    if: github.repository == 'esphome/esphome' && needs.init.outputs.branch_build == 'false'
+    runs-on: ubuntu-latest
+    needs:
+      - init
+      - deploy-manifest
+    steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: version-notifier
+
+      - name: Trigger Workflow
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          github-token: ${{ steps.generate-token.outputs.token }}
+          script: |
+            github.rest.actions.createWorkflowDispatch({
+              owner: "esphome",
+              repo: "version-notifier",
+              workflow_id: "notify.yml",
+              ref: "main",
+              inputs: {
+                version: "${{ needs.init.outputs.tag }}",
+              }
+            })

.github/workflows/stale.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Stale
-        uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
+        uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           debug-only: ${{ github.ref != 'refs/heads/dev' }} # Dry-run when not run on dev branch
           remove-stale-when-updated: true

.github/workflows/status-check-labels.yml

@@ -14,6 +14,7 @@ jobs:
         label:
           - needs-docs
           - merge-after-release
+          - chained-pr
     steps:
       - name: Check for ${{ matrix.label }} label
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0

.github/workflows/sync-device-classes.yml

@@ -13,16 +13,16 @@ jobs:
     if: github.repository == 'esphome/esphome'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Checkout Home Assistant
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           repository: home-assistant/core
           path: lib/home-assistant
 
       - name: Setup Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: 3.13
 
@@ -41,7 +41,7 @@ jobs:
           python script/run-in-env.py pre-commit run --all-files
 
       - name: Commit changes
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
+        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8.1.0
         with:
           commit-message: "Synchronise Device Classes from Home Assistant"
           committer: esphomebot <esphome@openhomefoundation.org>

.gitignore

@@ -91,6 +91,10 @@ venv-*/
 # mypy
 .mypy_cache/
 
+# nix
+/default.nix
+/shell.nix
+
 .pioenvs
 .piolibdeps
 .pio

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.14.1
+    rev: v0.15.0
     hooks:
       # Run the linter.
       - id: ruff

CODEOWNERS

@@ -21,6 +21,7 @@ esphome/components/adc128s102/* @DeerMaximum
 esphome/components/addressable_light/* @justfalter
 esphome/components/ade7880/* @kpfleming
 esphome/components/ade7953/* @angelnu
+esphome/components/ade7953_base/* @angelnu
 esphome/components/ade7953_i2c/* @angelnu
 esphome/components/ade7953_spi/* @angelnu
 esphome/components/ads1118/* @solomondg1
@@ -41,6 +42,7 @@ esphome/components/animation/* @syndlex
 esphome/components/anova/* @buxtronix
 esphome/components/apds9306/* @aodrenah
 esphome/components/api/* @esphome/core
+esphome/components/aqi/* @freekode @jasstrong @ximex
 esphome/components/as5600/* @ammmze
 esphome/components/as5600/sensor/* @ammmze
 esphome/components/as7341/* @mrgnr
@@ -72,6 +74,7 @@ esphome/components/bl0942/* @dbuezas @dwmw2
 esphome/components/ble_client/* @buxtronix @clydebarrow
 esphome/components/ble_nus/* @tomaszduda23
 esphome/components/bluetooth_proxy/* @bdraco @jesserockz
+esphome/components/bm8563/* @abmantis
 esphome/components/bme280_base/* @esphome/core
 esphome/components/bme280_spi/* @apbodrov
 esphome/components/bme680_bsec/* @trvrnrth
@@ -85,9 +88,11 @@ esphome/components/bmp3xx/* @latonita
 esphome/components/bmp3xx_base/* @latonita @martgras
 esphome/components/bmp3xx_i2c/* @latonita
 esphome/components/bmp3xx_spi/* @latonita
-esphome/components/bmp581/* @kahrendt
+esphome/components/bmp581_base/* @danielkent-net @kahrendt
+esphome/components/bmp581_i2c/* @danielkent-net @kahrendt
 esphome/components/bp1658cj/* @Cossid
 esphome/components/bp5758d/* @Cossid
+esphome/components/bthome_mithermometer/* @nagyrobi
 esphome/components/button/* @esphome/core
 esphome/components/bytebuffer/* @clydebarrow
 esphome/components/camera/* @bdraco @DT-art1
@@ -95,9 +100,11 @@ esphome/components/camera_encoder/* @DT-art1
 esphome/components/canbus/* @danielschramm @mvturnho
 esphome/components/cap1188/* @mreditor97
 esphome/components/captive_portal/* @esphome/core
+esphome/components/cc1101/* @gabest11 @lygris
 esphome/components/ccs811/* @habbie
 esphome/components/cd74hc4067/* @asoehlke
 esphome/components/ch422g/* @clydebarrow @jesterret
+esphome/components/ch423/* @dwmw2
 esphome/components/chsc6x/* @kkosik20
 esphome/components/climate/* @esphome/core
 esphome/components/climate_ir/* @glmnet
@@ -127,10 +134,11 @@ esphome/components/dfplayer/* @glmnet
 esphome/components/dfrobot_sen0395/* @niklasweber
 esphome/components/dht/* @OttoWinter
 esphome/components/display_menu_base/* @numo68
+esphome/components/dlms_meter/* @SimonFischer04
 esphome/components/dps310/* @kbx81
 esphome/components/ds1307/* @badbadc0ffee
 esphome/components/ds2484/* @mrk-its
-esphome/components/dsmr/* @glmnet @zuidwijk
+esphome/components/dsmr/* @glmnet @PolarGoose @zuidwijk
 esphome/components/duty_time/* @dudanov
 esphome/components/ee895/* @Stock-M
 esphome/components/ektf2232/touchscreen/* @jesserockz
@@ -155,12 +163,14 @@ esphome/components/esp32_ble_tracker/* @bdraco
 esphome/components/esp32_camera_web_server/* @ayufan
 esphome/components/esp32_can/* @Sympatron
 esphome/components/esp32_hosted/* @swoboda1337
+esphome/components/esp32_hosted/update/* @swoboda1337
 esphome/components/esp32_improv/* @jesserockz
 esphome/components/esp32_rmt/* @jesserockz
 esphome/components/esp32_rmt_led_strip/* @jesserockz
 esphome/components/esp8266/* @esphome/core
 esphome/components/esp_ldo/* @clydebarrow
 esphome/components/espnow/* @jesserockz
+esphome/components/espnow/packet_transport/* @EasilyBoredEngineer
 esphome/components/ethernet_info/* @gtjadsonsantos
 esphome/components/event/* @nohat
 esphome/components/exposure_notifications/* @OttoWinter
@@ -179,13 +189,14 @@ esphome/components/gdk101/* @Szewcson
 esphome/components/gl_r01_i2c/* @pkejval
 esphome/components/globals/* @esphome/core
 esphome/components/gp2y1010au0f/* @zry98
-esphome/components/gp8403/* @jesserockz
+esphome/components/gp8403/* @jesserockz @sebydocky
 esphome/components/gpio/* @esphome/core
 esphome/components/gpio/one_wire/* @ssieb
 esphome/components/gps/* @coogle @ximex
 esphome/components/graph/* @synco
 esphome/components/graphical_display_menu/* @MrMDavidson
 esphome/components/gree/* @orestismers
+esphome/components/gree/switch/* @nagyrobi
 esphome/components/grove_gas_mc_v2/* @YorkshireIoT
 esphome/components/grove_tb6612fng/* @max246
 esphome/components/growatt_solar/* @leeuwte
@@ -200,11 +211,16 @@ esphome/components/havells_solar/* @sourabhjaiswal
 esphome/components/hbridge/fan/* @WeekendWarrior
 esphome/components/hbridge/light/* @DotNetDann
 esphome/components/hbridge/switch/* @dwmw2
+esphome/components/hc8/* @omartijn
+esphome/components/hdc2010/* @optimusprimespace @ssieb
 esphome/components/he60r/* @clydebarrow
 esphome/components/heatpumpir/* @rob-deutsch
 esphome/components/hitachi_ac424/* @sourabhjaiswal
+esphome/components/hlk_fm22x/* @OnFreund
+esphome/components/hlw8032/* @rici4kubicek
 esphome/components/hm3301/* @freekode
 esphome/components/hmac_md5/* @dwmw2
+esphome/components/hmac_sha256/* @dwmw2
 esphome/components/homeassistant/* @esphome/core @OttoWinter
 esphome/components/homeassistant/number/* @landonr
 esphome/components/homeassistant/switch/* @Links2004
@@ -218,6 +234,7 @@ esphome/components/hte501/* @Stock-M
 esphome/components/http_request/ota/* @oarcher
 esphome/components/http_request/update/* @jesserockz
 esphome/components/htu31d/* @betterengineering
+esphome/components/hub75/* @stuartparmenter
 esphome/components/hydreon_rgxx/* @functionpointer
 esphome/components/hyt271/* @Philippe12
 esphome/components/i2c/* @esphome/core
@@ -235,11 +252,13 @@ esphome/components/ina260/* @mreditor97
 esphome/components/ina2xx_base/* @latonita
 esphome/components/ina2xx_i2c/* @latonita
 esphome/components/ina2xx_spi/* @latonita
+esphome/components/infrared/* @kbx81
 esphome/components/inkbird_ibsth1_mini/* @fkirill
 esphome/components/inkplate/* @jesserockz @JosipKuci
 esphome/components/integration/* @OttoWinter
 esphome/components/internal_temperature/* @Mat931
 esphome/components/interval/* @esphome/core
+esphome/components/ir_rf_proxy/* @kbx81
 esphome/components/jsn_sr04t/* @Mafus1
 esphome/components/json/* @esphome/core
 esphome/components/kamstrup_kmp/* @cfeenstra1024
@@ -287,6 +306,7 @@ esphome/components/mcp23x17_base/* @jesserockz
 esphome/components/mcp23xxx_base/* @jesserockz
 esphome/components/mcp2515/* @danielschramm @mvturnho
 esphome/components/mcp3204/* @rsumner
+esphome/components/mcp3221/* @philippderdiedas
 esphome/components/mcp4461/* @p1ngb4ck
 esphome/components/mcp4728/* @berfenger
 esphome/components/mcp47a1/* @jesserockz
@@ -296,7 +316,7 @@ esphome/components/md5/* @esphome/core
 esphome/components/mdns/* @esphome/core
 esphome/components/media_player/* @jesserockz
 esphome/components/micro_wake_word/* @jesserockz @kahrendt
-esphome/components/micronova/* @jorre05
+esphome/components/micronova/* @edenhaus @jorre05
 esphome/components/microphone/* @jesserockz @kahrendt
 esphome/components/mics_4514/* @jesserockz
 esphome/components/midea/* @dudanov
@@ -380,6 +400,7 @@ esphome/components/radon_eye_rd200/* @jeffeb3
 esphome/components/rc522/* @glmnet
 esphome/components/rc522_i2c/* @glmnet
 esphome/components/rc522_spi/* @glmnet
+esphome/components/rd03d/* @jasstrong
 esphome/components/resampler/speaker/* @kahrendt
 esphome/components/restart/* @esphome/core
 esphome/components/rf_bridge/* @jesserockz
@@ -391,6 +412,7 @@ esphome/components/rpi_dpi_rgb/* @clydebarrow
 esphome/components/rtl87xx/* @kuba2k2
 esphome/components/rtttl/* @glmnet
 esphome/components/runtime_stats/* @bdraco
+esphome/components/rx8130/* @beormund
 esphome/components/safe_mode/* @jsuanet @kbx81 @paulmonigatti
 esphome/components/scd4x/* @martgras @sjtrny
 esphome/components/script/* @esphome/core
@@ -454,6 +476,7 @@ esphome/components/st7735/* @SenexCrenshaw
 esphome/components/st7789v/* @kbx81
 esphome/components/st7920/* @marsjan155
 esphome/components/statsd/* @Links2004
+esphome/components/stts22h/* @B48D81EFCC
 esphome/components/substitutions/* @esphome/core
 esphome/components/sun/* @OttoWinter
 esphome/components/sun_gtil2/* @Mat931
@@ -461,6 +484,7 @@ esphome/components/switch/* @esphome/core
 esphome/components/switch/binary_sensor/* @ssieb
 esphome/components/sx126x/* @swoboda1337
 esphome/components/sx127x/* @swoboda1337
+esphome/components/sy6970/* @linkedupbits
 esphome/components/syslog/* @clydebarrow
 esphome/components/t6615/* @tylermenezes
 esphome/components/tc74/* @sethgirvan
@@ -475,8 +499,10 @@ esphome/components/template/datetime/* @rfdarter
 esphome/components/template/event/* @nohat
 esphome/components/template/fan/* @ssieb
 esphome/components/text/* @mauritskorse
+esphome/components/thermopro_ble/* @sittner
 esphome/components/thermostat/* @kbx81
 esphome/components/time/* @esphome/core
+esphome/components/tinyusb/* @kbx81
 esphome/components/tlc5947/* @rnauber
 esphome/components/tlc5971/* @IJIJI
 esphome/components/tm1621/* @Philippe12
@@ -501,13 +527,15 @@ esphome/components/tuya/switch/* @jesserockz
 esphome/components/tuya/text_sensor/* @dentra
 esphome/components/uart/* @esphome/core
 esphome/components/uart/button/* @ssieb
+esphome/components/uart/event/* @eoasmxd
 esphome/components/uart/packet_transport/* @clydebarrow
 esphome/components/udp/* @clydebarrow
 esphome/components/ufire_ec/* @pvizeli
 esphome/components/ufire_ise/* @pvizeli
-esphome/components/ultrasonic/* @OttoWinter
+esphome/components/ultrasonic/* @ssieb @swoboda1337
 esphome/components/update/* @jesserockz
 esphome/components/uponor_smatrix/* @kroimon
+esphome/components/usb_cdc_acm/* @kbx81
 esphome/components/usb_host/* @clydebarrow
 esphome/components/usb_uart/* @clydebarrow
 esphome/components/valve/* @esphome/core
@@ -518,6 +546,7 @@ esphome/components/version/* @esphome/core
 esphome/components/voice_assistant/* @jesserockz @kahrendt
 esphome/components/wake_on_lan/* @clydebarrow @willwill2will54
 esphome/components/watchdog/* @oarcher
+esphome/components/water_heater/* @dhoeben
 esphome/components/waveshare_epaper/* @clydebarrow
 esphome/components/web_server/ota/* @esphome/core
 esphome/components/web_server_base/* @esphome/core
@@ -553,5 +582,6 @@ esphome/components/xpt2046/touchscreen/* @nielsnl68 @numo68
 esphome/components/xxtea/* @clydebarrow
 esphome/components/zephyr/* @tomaszduda23
 esphome/components/zhlt01/* @cfeenstra1024
+esphome/components/zigbee/* @tomaszduda23
 esphome/components/zio_ultrasonic/* @kahrendt
 esphome/components/zwave_proxy/* @kbx81

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 We welcome contributions to the ESPHome suite of code and documentation!
 
-Please read our [contributing guide](https://esphome.io/guides/contributing.html) if you wish to contribute to the
+Please read our [contributing guide](https://developers.esphome.io/contributing/code/) if you wish to contribute to the
 project and be sure to join us on [Discord](https://discord.gg/KhAMKrd).
 
 **See also:**

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2025.11.0-dev
+PROJECT_NUMBER         = 2026.2.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

MANIFEST.in

@@ -1,6 +1,7 @@
 include LICENSE
 include README.md
 include requirements.txt
+recursive-include esphome *.yaml
 recursive-include esphome *.cpp *.h *.tcc *.c
 recursive-include esphome *.py.script
 recursive-include esphome LICENSE.txt

README.md

@@ -2,8 +2,8 @@
 
 <a href="https://esphome.io/">
   <picture>
-    <source media="(prefers-color-scheme: dark)" srcset="https://esphome.io/_static/logo-text-on-dark.svg", alt="ESPHome Logo">
-    <img src="https://esphome.io/_static/logo-text-on-light.svg" alt="ESPHome Logo">
+    <source media="(prefers-color-scheme: dark)" srcset="https://media.esphome.io/logo/logo-text-on-dark.svg">
+    <img src="https://media.esphome.io/logo/logo-text-on-light.svg" alt="ESPHome Logo">
   </picture>
 </a>
 

docker/Dockerfile

@@ -11,6 +11,16 @@ FROM base-source-${BUILD_TYPE} AS base
 
 RUN git config --system --add safe.directory "*"
 
+# Install build tools for Python packages that require compilation
+# (e.g., ruamel.yaml.clibz used by ESP-IDF's idf-component-manager)
+RUN if command -v apk > /dev/null; then \
+        apk add --no-cache build-base; \
+    else \
+        apt-get update \
+        && apt-get install -y --no-install-recommends build-essential \
+        && rm -rf /var/lib/apt/lists/*; \
+    fi
+
 ENV PIP_DISABLE_PIP_VERSION_CHECK=1
 
 RUN pip install --no-cache-dir -U pip uv==0.6.14

esphome/__main__.py

@@ -1,5 +1,6 @@
 # PYTHON_ARGCOMPLETE_OK
 import argparse
+from collections.abc import Callable
 from datetime import datetime
 import functools
 import getpass
@@ -42,6 +43,7 @@ from esphome.const import (
     CONF_SUBSTITUTIONS,
     CONF_TOPIC,
     ENV_NOGITIGNORE,
+    KEY_NATIVE_IDF,
     PLATFORM_ESP32,
     PLATFORM_ESP8266,
     PLATFORM_RP2040,
@@ -62,6 +64,43 @@ from esphome.util import (
 
 _LOGGER = logging.getLogger(__name__)
 
+# Maximum buffer size for serial log reading to prevent unbounded memory growth
+SERIAL_BUFFER_MAX_SIZE = 65536
+
+# Special non-component keys that appear in configs
+_NON_COMPONENT_KEYS = frozenset(
+    {
+        CONF_ESPHOME,
+        "substitutions",
+        "packages",
+        "globals",
+        "external_components",
+        "<<",
+    }
+)
+
+
+def detect_external_components(config: ConfigType) -> set[str]:
+    """Detect external/custom components in the configuration.
+
+    External components are those that appear in the config but are not
+    part of ESPHome's built-in components and are not special config keys.
+
+    Args:
+        config: The ESPHome configuration dictionary
+
+    Returns:
+        A set of external component names
+    """
+    from esphome.analyze_memory.helpers import get_esphome_components
+
+    builtin_components = get_esphome_components()
+    return {
+        key
+        for key in config
+        if key not in builtin_components and key not in _NON_COMPONENT_KEYS
+    }
+
 
 class ArgsProtocol(Protocol):
     device: list[str] | None
@@ -78,6 +117,7 @@ class ArgsProtocol(Protocol):
     configuration: str
     name: str
     upload_speed: str | None
+    native_idf: bool
 
 
 def choose_prompt(options, purpose: str = None):
@@ -173,20 +213,25 @@ def choose_upload_log_host(
                     if has_mqtt_logging():
                         resolved.append("MQTT")
 
-                    if has_api() and has_non_ip_address():
+                    if has_api() and has_non_ip_address() and has_resolvable_address():
                         resolved.extend(_resolve_with_cache(CORE.address, purpose))
 
                 elif purpose == Purpose.UPLOADING:
                     if has_ota() and has_mqtt_ip_lookup():
                         resolved.append("MQTTIP")
 
-                    if has_ota() and has_non_ip_address():
+                    if has_ota() and has_non_ip_address() and has_resolvable_address():
                         resolved.extend(_resolve_with_cache(CORE.address, purpose))
             else:
                 resolved.append(device)
         if not resolved:
+            if CORE.dashboard:
+                hint = "If you know the IP, set 'use_address' in your network config."
+            else:
+                hint = "If you know the IP, try --device <IP>"
             raise EsphomeError(
-                f"All specified devices {defaults} could not be resolved. Is the device connected to the network?"
+                f"All specified devices {defaults} could not be resolved. "
+                f"Is the device connected to the network? {hint}"
             )
         return resolved
 
@@ -249,8 +294,13 @@ def has_api() -> bool:
 
 
 def has_ota() -> bool:
-    """Check if OTA is available."""
-    return CONF_OTA in CORE.config
+    """Check if OTA upload is available (requires platform: esphome)."""
+    if CONF_OTA not in CORE.config:
+        return False
+    return any(
+        ota_item.get(CONF_PLATFORM) == CONF_ESPHOME
+        for ota_item in CORE.config[CONF_OTA]
+    )
 
 
 def has_mqtt_ip_lookup() -> bool:
@@ -284,7 +334,17 @@ def has_resolvable_address() -> bool:
     """Check if CORE.address is resolvable (via mDNS, DNS, or is an IP address)."""
     # Any address (IP, mDNS hostname, or regular DNS hostname) is resolvable
     # The resolve_ip_address() function in helpers.py handles all types via AsyncResolver
-    return CORE.address is not None
+    if CORE.address is None:
+        return False
+
+    if has_ip_address():
+        return True
+
+    if has_mdns():
+        return True
+
+    # .local mDNS hostnames are only resolvable if mDNS is enabled
+    return not CORE.address.endswith(".local")
 
 
 def mqtt_get_ip(config: ConfigType, username: str, password: str, client_id: str):
@@ -387,25 +447,37 @@ def run_miniterm(config: ConfigType, port: str, args) -> int:
     while tries < 5:
         try:
             with ser:
+                buffer = b""
+                ser.timeout = 0.1  # 100ms timeout for non-blocking reads
                 while True:
                     try:
-                        raw = ser.readline()
+                        # Read all available data and timestamp it
+                        chunk = ser.read(ser.in_waiting or 1)
+                        if not chunk:
+                            continue
+                        time_ = datetime.now()
+                        milliseconds = time_.microsecond // 1000
+                        time_str = f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}.{milliseconds:03}]"
+
+                        # Add to buffer and process complete lines
+                        # Limit buffer size to prevent unbounded memory growth
+                        # if device sends data without newlines
+                        buffer += chunk
+                        if len(buffer) > SERIAL_BUFFER_MAX_SIZE:
+                            buffer = buffer[-SERIAL_BUFFER_MAX_SIZE:]
+                        while b"\n" in buffer:
+                            raw_line, buffer = buffer.split(b"\n", 1)
+                            line = raw_line.replace(b"\r", b"").decode(
+                                "utf8", "backslashreplace"
+                            )
+                            safe_print(parser.parse_line(line, time_str))
+
+                            backtrace_state = platformio_api.process_stacktrace(
+                                config, line, backtrace_state=backtrace_state
+                            )
                     except serial.SerialException:
                         _LOGGER.error("Serial port closed!")
                         return 0
-                    line = (
-                        raw.replace(b"\r", b"")
-                        .replace(b"\n", b"")
-                        .decode("utf8", "backslashreplace")
-                    )
-                    time_ = datetime.now()
-                    nanoseconds = time_.microsecond // 1000
-                    time_str = f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}.{nanoseconds:03}]"
-                    safe_print(parser.parse_line(line, time_str))
-
-                    backtrace_state = platformio_api.process_stacktrace(
-                        config, line, backtrace_state=backtrace_state
-                    )
         except serial.SerialException:
             tries += 1
             time.sleep(1)
@@ -435,12 +507,15 @@ def wrap_to_code(name, comp):
     return wrapped
 
 
-def write_cpp(config: ConfigType) -> int:
+def write_cpp(config: ConfigType, native_idf: bool = False) -> int:
     if not get_bool_env(ENV_NOGITIGNORE):
         writer.write_gitignore()
 
+    # Store native_idf flag so esp32 component can check it
+    CORE.data[KEY_NATIVE_IDF] = native_idf
+
     generate_cpp_contents(config)
-    return write_cpp_file()
+    return write_cpp_file(native_idf=native_idf)
 
 
 def generate_cpp_contents(config: ConfigType) -> None:
@@ -454,28 +529,89 @@ def generate_cpp_contents(config: ConfigType) -> None:
     CORE.flush_tasks()
 
 
-def write_cpp_file() -> int:
+def write_cpp_file(native_idf: bool = False) -> int:
     code_s = indent(CORE.cpp_main_section)
     writer.write_cpp(code_s)
 
-    from esphome.build_gen import platformio
+    if native_idf and CORE.is_esp32 and CORE.target_framework == "esp-idf":
+        from esphome.build_gen import espidf
 
-    platformio.write_project()
+        espidf.write_project()
+    else:
+        from esphome.build_gen import platformio
+
+        platformio.write_project()
 
     return 0
 
 
 def compile_program(args: ArgsProtocol, config: ConfigType) -> int:
-    from esphome import platformio_api
+    native_idf = getattr(args, "native_idf", False)
 
     # NOTE: "Build path:" format is parsed by script/ci_memory_impact_extract.py
     # If you change this format, update the regex in that script as well
     _LOGGER.info("Compiling app... Build path: %s", CORE.build_path)
-    rc = platformio_api.run_compile(config, CORE.verbose)
-    if rc != 0:
-        return rc
-    idedata = platformio_api.get_idedata(config)
-    return 0 if idedata is not None else 1
+
+    if native_idf and CORE.is_esp32 and CORE.target_framework == "esp-idf":
+        from esphome import espidf_api
+
+        rc = espidf_api.run_compile(config, CORE.verbose)
+        if rc != 0:
+            return rc
+
+        # Create factory.bin and ota.bin
+        espidf_api.create_factory_bin()
+        espidf_api.create_ota_bin()
+    else:
+        from esphome import platformio_api
+
+        rc = platformio_api.run_compile(config, CORE.verbose)
+        if rc != 0:
+            return rc
+
+        idedata = platformio_api.get_idedata(config)
+        if idedata is None:
+            return 1
+
+    # Check if firmware was rebuilt and emit build_info + create manifest
+    _check_and_emit_build_info()
+
+    return 0
+
+
+def _check_and_emit_build_info() -> None:
+    """Check if firmware was rebuilt and emit build_info."""
+    import json
+
+    firmware_path = CORE.firmware_bin
+    build_info_json_path = CORE.relative_build_path("build_info.json")
+
+    # Check if both files exist
+    if not firmware_path.exists() or not build_info_json_path.exists():
+        return
+
+    # Check if firmware is newer than build_info (indicating a relink occurred)
+    if firmware_path.stat().st_mtime <= build_info_json_path.stat().st_mtime:
+        return
+
+    # Read build_info from JSON
+    try:
+        with open(build_info_json_path, encoding="utf-8") as f:
+            build_info = json.load(f)
+    except (OSError, json.JSONDecodeError) as e:
+        _LOGGER.debug("Failed to read build_info: %s", e)
+        return
+
+    config_hash = build_info.get("config_hash")
+    build_time_str = build_info.get("build_time_str")
+
+    if config_hash is None or build_time_str is None:
+        return
+
+    # Emit build_info with human-readable time
+    _LOGGER.info(
+        "Build Info: config_hash=0x%08x build_time_str=%s", config_hash, build_time_str
+    )
 
 
 def upload_using_esptool(
@@ -697,7 +833,8 @@ def command_vscode(args: ArgsProtocol) -> int | None:
 
 
 def command_compile(args: ArgsProtocol, config: ConfigType) -> int | None:
-    exit_code = write_cpp(config)
+    native_idf = getattr(args, "native_idf", False)
+    exit_code = write_cpp(config, native_idf=native_idf)
     if exit_code != 0:
         return exit_code
     if args.only_generate:
@@ -706,7 +843,13 @@ def command_compile(args: ArgsProtocol, config: ConfigType) -> int | None:
     exit_code = compile_program(args, config)
     if exit_code != 0:
         return exit_code
-    _LOGGER.info("Successfully compiled program.")
+    if CORE.is_host:
+        from esphome.platformio_api import get_idedata
+
+        program_path = str(get_idedata(config).firmware_elf_path)
+        _LOGGER.info("Successfully compiled program to path '%s'", program_path)
+    else:
+        _LOGGER.info("Successfully compiled program.")
     return 0
 
 
@@ -746,7 +889,8 @@ def command_logs(args: ArgsProtocol, config: ConfigType) -> int | None:
 
 
 def command_run(args: ArgsProtocol, config: ConfigType) -> int | None:
-    exit_code = write_cpp(config)
+    native_idf = getattr(args, "native_idf", False)
+    exit_code = write_cpp(config, native_idf=native_idf)
     if exit_code != 0:
         return exit_code
     exit_code = compile_program(args, config)
@@ -756,10 +900,8 @@ def command_run(args: ArgsProtocol, config: ConfigType) -> int | None:
     if CORE.is_host:
         from esphome.platformio_api import get_idedata
 
-        idedata = get_idedata(config)
-        if idedata is None:
-            return 1
-        program_path = idedata.raw["prog_path"]
+        program_path = str(get_idedata(config).firmware_elf_path)
+        _LOGGER.info("Running program from path '%s'", program_path)
         return run_external_process(program_path)
 
     # Get devices, resolving special identifiers like OTA
@@ -829,11 +971,21 @@ def command_dashboard(args: ArgsProtocol) -> int | None:
     return dashboard.start_dashboard(args)
 
 
-def command_update_all(args: ArgsProtocol) -> int | None:
+def run_multiple_configs(
+    files: list, command_builder: Callable[[str], list[str]]
+) -> int:
+    """Run a command for each configuration file in a subprocess.
+
+    Args:
+        files: List of configuration files to process.
+        command_builder: Callable that takes a file path and returns a command list.
+
+    Returns:
+        Number of failed files.
+    """
     import click
 
     success = {}
-    files = list_yaml_files(args.configuration)
     twidth = 60
 
     def print_bar(middle_text):
@@ -843,17 +995,19 @@ def command_update_all(args: ArgsProtocol) -> int | None:
         safe_print(f"{half_line}{middle_text}{half_line}")
 
     for f in files:
-        safe_print(f"Updating {color(AnsiFore.CYAN, str(f))}")
+        f_path = Path(f) if not isinstance(f, Path) else f
+
+        if any(f_path.name == x for x in SECRETS_FILES):
+            _LOGGER.warning("Skipping secrets file %s", f_path)
+            continue
+
+        safe_print(f"Processing {color(AnsiFore.CYAN, str(f))}")
         safe_print("-" * twidth)
         safe_print()
-        if CORE.dashboard:
-            rc = run_external_process(
-                "esphome", "--dashboard", "run", f, "--no-logs", "--device", "OTA"
-            )
-        else:
-            rc = run_external_process(
-                "esphome", "run", f, "--no-logs", "--device", "OTA"
-            )
+
+        cmd = command_builder(f)
+        rc = run_external_process(*cmd)
+
         if rc == 0:
             print_bar(f"[{color(AnsiFore.BOLD_GREEN, 'SUCCESS')}] {str(f)}")
             success[f] = True
@@ -868,6 +1022,8 @@ def command_update_all(args: ArgsProtocol) -> int | None:
     print_bar(f"[{color(AnsiFore.BOLD_WHITE, 'SUMMARY')}]")
     failed = 0
     for f in files:
+        if f not in success:
+            continue  # Skipped file
         if success[f]:
             safe_print(f"  - {str(f)}: {color(AnsiFore.GREEN, 'SUCCESS')}")
         else:
@@ -876,6 +1032,17 @@ def command_update_all(args: ArgsProtocol) -> int | None:
     return failed
 
 
+def command_update_all(args: ArgsProtocol) -> int | None:
+    files = list_yaml_files(args.configuration)
+
+    def build_command(f):
+        if CORE.dashboard:
+            return ["esphome", "--dashboard", "run", f, "--no-logs", "--device", "OTA"]
+        return ["esphome", "run", f, "--no-logs", "--device", "OTA"]
+
+    return run_multiple_configs(files, build_command)
+
+
 def command_idedata(args: ArgsProtocol, config: ConfigType) -> int:
     import json
 
@@ -892,6 +1059,73 @@ def command_idedata(args: ArgsProtocol, config: ConfigType) -> int:
     return 0
 
 
+def command_analyze_memory(args: ArgsProtocol, config: ConfigType) -> int:
+    """Analyze memory usage by component.
+
+    This command compiles the configuration and performs memory analysis.
+    Compilation is fast if sources haven't changed (just relinking).
+    """
+    from esphome import platformio_api
+    from esphome.analyze_memory.cli import MemoryAnalyzerCLI
+    from esphome.analyze_memory.ram_strings import RamStringsAnalyzer
+
+    # Always compile to ensure fresh data (fast if no changes - just relinks)
+    exit_code = write_cpp(config)
+    if exit_code != 0:
+        return exit_code
+    exit_code = compile_program(args, config)
+    if exit_code != 0:
+        return exit_code
+    _LOGGER.info("Successfully compiled program.")
+
+    # Get idedata for analysis
+    idedata = platformio_api.get_idedata(config)
+    if idedata is None:
+        _LOGGER.error("Failed to get IDE data for memory analysis")
+        return 1
+
+    firmware_elf = Path(idedata.firmware_elf_path)
+
+    # Extract external components from config
+    external_components = detect_external_components(config)
+    _LOGGER.debug("Detected external components: %s", external_components)
+
+    # Perform component memory analysis
+    _LOGGER.info("Analyzing memory usage...")
+    analyzer = MemoryAnalyzerCLI(
+        str(firmware_elf),
+        idedata.objdump_path,
+        idedata.readelf_path,
+        external_components,
+        idedata=idedata,
+    )
+    analyzer.analyze()
+
+    # Generate and display component report
+    report = analyzer.generate_report()
+    print()
+    print(report)
+
+    # Perform RAM strings analysis
+    _LOGGER.info("Analyzing RAM strings...")
+    try:
+        ram_analyzer = RamStringsAnalyzer(
+            str(firmware_elf),
+            objdump_path=idedata.objdump_path,
+            platform=CORE.target_platform,
+        )
+        ram_analyzer.analyze()
+
+        # Generate and display RAM strings report
+        ram_report = ram_analyzer.generate_report()
+        print()
+        print(ram_report)
+    except Exception as e:  # pylint: disable=broad-except
+        _LOGGER.warning("RAM strings analysis failed: %s", e)
+
+    return 0
+
+
 def command_rename(args: ArgsProtocol, config: ConfigType) -> int | None:
     new_name = args.name
     for c in new_name:
@@ -1007,6 +1241,7 @@ POST_CONFIG_ACTIONS = {
     "idedata": command_idedata,
     "rename": command_rename,
     "discover": command_discover,
+    "analyze-memory": command_analyze_memory,
 }
 
 SIMPLE_CONFIG_ACTIONS = [
@@ -1109,6 +1344,11 @@ def parse_args(argv):
         help="Only generate source code, do not compile.",
         action="store_true",
     )
+    parser_compile.add_argument(
+        "--native-idf",
+        help="Build with native ESP-IDF instead of PlatformIO (ESP32 esp-idf framework only).",
+        action="store_true",
+    )
 
     parser_upload = subparsers.add_parser(
         "upload",
@@ -1190,6 +1430,11 @@ def parse_args(argv):
         help="Reset the device before starting serial logs.",
         default=os.getenv("ESPHOME_SERIAL_LOGGING_RESET"),
     )
+    parser_run.add_argument(
+        "--native-idf",
+        help="Build with native ESP-IDF instead of PlatformIO (ESP32 esp-idf framework only).",
+        action="store_true",
+    )
 
     parser_clean = subparsers.add_parser(
         "clean-mqtt",
@@ -1226,7 +1471,7 @@ def parse_args(argv):
         "clean-all", help="Clean all build and platform files."
     )
     parser_clean_all.add_argument(
-        "configuration", help="Your YAML configuration directory.", nargs="*"
+        "configuration", help="Your YAML file or configuration directory.", nargs="*"
     )
 
     parser_dashboard = subparsers.add_parser(
@@ -1292,6 +1537,14 @@ def parse_args(argv):
     )
     parser_rename.add_argument("name", help="The new name for the device.", type=str)
 
+    parser_analyze_memory = subparsers.add_parser(
+        "analyze-memory",
+        help="Analyze memory usage by component.",
+    )
+    parser_analyze_memory.add_argument(
+        "configuration", help="Your YAML configuration file(s).", nargs="+"
+    )
+
     # Keep backward compatibility with the old command line format of
     # esphome <config> <command>.
     #
@@ -1350,38 +1603,48 @@ def run_esphome(argv):
 
     _LOGGER.info("ESPHome %s", const.__version__)
 
-    for conf_path in args.configuration:
-        conf_path = Path(conf_path)
-        if any(conf_path.name == x for x in SECRETS_FILES):
-            _LOGGER.warning("Skipping secrets file %s", conf_path)
-            continue
+    # Multiple configurations: use subprocesses to avoid state leakage
+    # between compilations (e.g., LVGL touchscreen state in module globals)
+    if len(args.configuration) > 1:
+        # Build command by reusing argv, replacing all configs with single file
+        # argv[0] is the program path, skip it since we prefix with "esphome"
+        def build_command(f):
+            return (
+                ["esphome"]
+                + [arg for arg in argv[1:] if arg not in args.configuration]
+                + [str(f)]
+            )
 
-        CORE.config_path = conf_path
-        CORE.dashboard = args.dashboard
+        return run_multiple_configs(args.configuration, build_command)
 
-        # For logs command, skip updating external components
-        skip_external = args.command == "logs"
-        config = read_config(
-            dict(args.substitution) if args.substitution else {},
-            skip_external_update=skip_external,
-        )
-        if config is None:
-            return 2
-        CORE.config = config
+    # Single configuration
+    conf_path = Path(args.configuration[0])
+    if any(conf_path.name == x for x in SECRETS_FILES):
+        _LOGGER.warning("Skipping secrets file %s", conf_path)
+        return 0
 
-        if args.command not in POST_CONFIG_ACTIONS:
-            safe_print(f"Unknown command {args.command}")
+    CORE.config_path = conf_path
+    CORE.dashboard = args.dashboard
 
-        try:
-            rc = POST_CONFIG_ACTIONS[args.command](args, config)
-        except EsphomeError as e:
-            _LOGGER.error(e, exc_info=args.verbose)
-            return 1
-        if rc != 0:
-            return rc
+    # For logs command, skip updating external components
+    skip_external = args.command == "logs"
+    config = read_config(
+        dict(args.substitution) if args.substitution else {},
+        skip_external_update=skip_external,
+    )
+    if config is None:
+        return 2
+    CORE.config = config
 
-        CORE.reset()
-    return 0
+    if args.command not in POST_CONFIG_ACTIONS:
+        safe_print(f"Unknown command {args.command}")
+        return 1
+
+    try:
+        return POST_CONFIG_ACTIONS[args.command](args, config)
+    except EsphomeError as e:
+        _LOGGER.error(e, exc_info=args.verbose)
+        return 1
 
 
 def main():

esphome/analyze_memory/__init__.py

@@ -12,30 +12,22 @@ from .const import (
     CORE_SUBCATEGORY_PATTERNS,
     DEMANGLED_PATTERNS,
     ESPHOME_COMPONENT_PATTERN,
-    SECTION_TO_ATTR,
     SYMBOL_PATTERNS,
 )
+from .demangle import batch_demangle
 from .helpers import (
     get_component_class_patterns,
     get_esphome_components,
     map_section_name,
     parse_symbol_line,
 )
+from .toolchain import find_tool, resolve_tool_path, run_tool
 
 if TYPE_CHECKING:
     from esphome.platformio_api import IDEData
 
 _LOGGER = logging.getLogger(__name__)
 
-# GCC global constructor/destructor prefix annotations
-_GCC_PREFIX_ANNOTATIONS = {
-    "_GLOBAL__sub_I_": "global constructor for",
-    "_GLOBAL__sub_D_": "global destructor for",
-}
-
-# GCC optimization suffix pattern (e.g., $isra$0, $part$1, $constprop$2)
-_GCC_OPTIMIZATION_SUFFIX_PATTERN = re.compile(r"(\$(?:isra|part|constprop)\$\d+)")
-
 # C++ runtime patterns for categorization
 _CPP_RUNTIME_PATTERNS = frozenset(["vtable", "typeinfo", "thunk"])
 
@@ -61,6 +53,9 @@ _NAMESPACE_STD = "std::"
 # Type alias for symbol information: (symbol_name, size, component)
 SymbolInfoType = tuple[str, int, str]
 
+# RAM sections - symbols in these sections consume RAM
+RAM_SECTIONS = frozenset([".data", ".bss"])
+
 
 @dataclass
 class MemorySection:
@@ -68,7 +63,20 @@ class MemorySection:
 
     name: str
     symbols: list[SymbolInfoType] = field(default_factory=list)
-    total_size: int = 0
+    total_size: int = 0  # Actual section size from ELF headers
+    symbol_size: int = 0  # Sum of symbol sizes (may be less than total_size)
+
+
+@dataclass
+class SDKSymbol:
+    """Represents a symbol from an SDK library that's not in the ELF symbol table."""
+
+    name: str
+    size: int
+    library: str  # Name of the .a file (e.g., "libpp.a")
+    section: str  # ".bss" or ".data"
+    is_local: bool  # True if static/local symbol (lowercase in nm output)
+    demangled: str = ""  # Demangled name (populated after analysis)
 
 
 @dataclass
@@ -82,6 +90,17 @@ class ComponentMemory:
     bss_size: int = 0  # Uninitialized data (ram only)
     symbol_count: int = 0
 
+    def add_section_size(self, section_name: str, size: int) -> None:
+        """Add size to the appropriate attribute for a section."""
+        if section_name == ".text":
+            self.text_size += size
+        elif section_name == ".rodata":
+            self.rodata_size += size
+        elif section_name == ".data":
+            self.data_size += size
+        elif section_name == ".bss":
+            self.bss_size += size
+
     @property
     def flash_total(self) -> int:
         """Total flash usage (text + rodata + data)."""
@@ -123,9 +142,19 @@ class MemoryAnalyzer:
             readelf_path = readelf_path or idedata.readelf_path
             _LOGGER.debug("Using toolchain paths from PlatformIO idedata")
 
+        # Validate paths exist, fall back to find_tool if they don't
+        # This handles cases like Zephyr where cc_path doesn't include full path
+        # and the toolchain prefix may differ (e.g., arm-zephyr-eabi- vs arm-none-eabi-)
+        objdump_path = resolve_tool_path("objdump", objdump_path, objdump_path)
+        readelf_path = resolve_tool_path("readelf", readelf_path, objdump_path)
+
         self.objdump_path = objdump_path or "objdump"
         self.readelf_path = readelf_path or "readelf"
         self.external_components = external_components or set()
+        self._idedata = idedata
+
+        # Derive nm path from objdump path using shared toolchain utility
+        self.nm_path = find_tool("nm", self.objdump_path)
 
         self.sections: dict[str, MemorySection] = {}
         self.components: dict[str, ComponentMemory] = defaultdict(
@@ -136,15 +165,28 @@ class MemoryAnalyzer:
         self._esphome_core_symbols: list[
             tuple[str, str, int]
         ] = []  # Track core symbols
-        self._component_symbols: dict[str, list[tuple[str, str, int]]] = defaultdict(
+        # Track symbols for all components: (symbol_name, demangled, size, section)
+        self._component_symbols: dict[str, list[tuple[str, str, int, str]]] = (
+            defaultdict(list)
+        )
+        # Track RAM symbols separately for detailed analysis: (symbol_name, demangled, size, section)
+        self._ram_symbols: dict[str, list[tuple[str, str, int, str]]] = defaultdict(
             list
-        )  # Track symbols for all components
+        )
+        # Track ELF symbol names for SDK cross-reference
+        self._elf_symbol_names: set[str] = set()
+        # SDK symbols not in ELF (static/local symbols from closed-source libs)
+        self._sdk_symbols: list[SDKSymbol] = []
+        # CSWTCH symbols: list of (name, size, source_file, component)
+        self._cswtch_symbols: list[tuple[str, int, str, str]] = []
 
     def analyze(self) -> dict[str, ComponentMemory]:
         """Analyze the ELF file and return component memory usage."""
         self._parse_sections()
         self._parse_symbols()
         self._categorize_symbols()
+        self._analyze_cswtch_symbols()
+        self._analyze_sdk_libraries()
         return dict(self.components)
 
     def _parse_sections(self) -> None:
@@ -198,6 +240,8 @@ class MemoryAnalyzer:
                 continue
 
             self.sections[section].symbols.append((name, size, ""))
+            self.sections[section].symbol_size += size
+            self._elf_symbol_names.add(name)
             seen_addresses.add(address)
 
     def _categorize_symbols(self) -> None:
@@ -224,8 +268,7 @@ class MemoryAnalyzer:
                 comp_mem.symbol_count += 1
 
                 # Update the appropriate size attribute based on section
-                if attr_name := SECTION_TO_ATTR.get(section_name):
-                    setattr(comp_mem, attr_name, getattr(comp_mem, attr_name) + size)
+                comp_mem.add_section_size(section_name, size)
 
                 # Track uncategorized symbols
                 if component == "other" and size > 0:
@@ -241,8 +284,13 @@ class MemoryAnalyzer:
                 if size > 0:
                     demangled = self._demangle_symbol(symbol_name)
                     self._component_symbols[component].append(
-                        (symbol_name, demangled, size)
+                        (symbol_name, demangled, size, section_name)
                     )
+                    # Track RAM symbols separately for detailed RAM analysis
+                    if section_name in RAM_SECTIONS:
+                        self._ram_symbols[component].append(
+                            (symbol_name, demangled, size, section_name)
+                        )
 
     def _identify_component(self, symbol_name: str) -> str:
         """Identify which component a symbol belongs to."""
@@ -312,168 +360,9 @@ class MemoryAnalyzer:
         if not symbols:
             return
 
-        # Try to find the appropriate c++filt for the platform
-        cppfilt_cmd = "c++filt"
-
         _LOGGER.info("Demangling %d symbols", len(symbols))
-        _LOGGER.debug("objdump_path = %s", self.objdump_path)
-
-        # Check if we have a toolchain-specific c++filt
-        if self.objdump_path and self.objdump_path != "objdump":
-            # Replace objdump with c++filt in the path
-            potential_cppfilt = self.objdump_path.replace("objdump", "c++filt")
-            _LOGGER.info("Checking for toolchain c++filt at: %s", potential_cppfilt)
-            if Path(potential_cppfilt).exists():
-                cppfilt_cmd = potential_cppfilt
-                _LOGGER.info("✓ Using toolchain c++filt: %s", cppfilt_cmd)
-            else:
-                _LOGGER.info(
-                    "✗ Toolchain c++filt not found at %s, using system c++filt",
-                    potential_cppfilt,
-                )
-        else:
-            _LOGGER.info("✗ Using system c++filt (objdump_path=%s)", self.objdump_path)
-
-        # Strip GCC optimization suffixes and prefixes before demangling
-        # Suffixes like $isra$0, $part$0, $constprop$0 confuse c++filt
-        # Prefixes like _GLOBAL__sub_I_ need to be removed and tracked
-        symbols_stripped: list[str] = []
-        symbols_prefixes: list[str] = []  # Track removed prefixes
-        for symbol in symbols:
-            # Remove GCC optimization markers
-            stripped = _GCC_OPTIMIZATION_SUFFIX_PATTERN.sub("", symbol)
-
-            # Handle GCC global constructor/initializer prefixes
-            # _GLOBAL__sub_I_<mangled> -> extract <mangled> for demangling
-            prefix = ""
-            for gcc_prefix in _GCC_PREFIX_ANNOTATIONS:
-                if stripped.startswith(gcc_prefix):
-                    prefix = gcc_prefix
-                    stripped = stripped[len(prefix) :]
-                    break
-
-            symbols_stripped.append(stripped)
-            symbols_prefixes.append(prefix)
-
-        try:
-            # Send all symbols to c++filt at once
-            result = subprocess.run(
-                [cppfilt_cmd],
-                input="\n".join(symbols_stripped),
-                capture_output=True,
-                text=True,
-                check=False,
-            )
-        except (subprocess.SubprocessError, OSError, UnicodeDecodeError) as e:
-            # On error, cache originals
-            _LOGGER.warning("Failed to batch demangle symbols: %s", e)
-            for symbol in symbols:
-                self._demangle_cache[symbol] = symbol
-            return
-
-        if result.returncode != 0:
-            _LOGGER.warning(
-                "c++filt exited with code %d: %s",
-                result.returncode,
-                result.stderr[:200] if result.stderr else "(no error output)",
-            )
-            # Cache originals on failure
-            for symbol in symbols:
-                self._demangle_cache[symbol] = symbol
-            return
-
-        # Process demangled output
-        self._process_demangled_output(
-            symbols, symbols_stripped, symbols_prefixes, result.stdout, cppfilt_cmd
-        )
-
-    def _process_demangled_output(
-        self,
-        symbols: list[str],
-        symbols_stripped: list[str],
-        symbols_prefixes: list[str],
-        demangled_output: str,
-        cppfilt_cmd: str,
-    ) -> None:
-        """Process demangled symbol output and populate cache.
-
-        Args:
-            symbols: Original symbol names
-            symbols_stripped: Stripped symbol names sent to c++filt
-            symbols_prefixes: Removed prefixes to restore
-            demangled_output: Output from c++filt
-            cppfilt_cmd: Path to c++filt command (for logging)
-        """
-        demangled_lines = demangled_output.strip().split("\n")
-        failed_count = 0
-
-        for original, stripped, prefix, demangled in zip(
-            symbols, symbols_stripped, symbols_prefixes, demangled_lines
-        ):
-            # Add back any prefix that was removed
-            demangled = self._restore_symbol_prefix(prefix, stripped, demangled)
-
-            # If we stripped a suffix, add it back to the demangled name for clarity
-            if original != stripped and not prefix:
-                demangled = self._restore_symbol_suffix(original, demangled)
-
-            self._demangle_cache[original] = demangled
-
-            # Log symbols that failed to demangle (stayed the same as stripped version)
-            if stripped == demangled and stripped.startswith("_Z"):
-                failed_count += 1
-                if failed_count <= 5:  # Only log first 5 failures
-                    _LOGGER.warning("Failed to demangle: %s", original)
-
-        if failed_count == 0:
-            _LOGGER.info("Successfully demangled all %d symbols", len(symbols))
-            return
-
-        _LOGGER.warning(
-            "Failed to demangle %d/%d symbols using %s",
-            failed_count,
-            len(symbols),
-            cppfilt_cmd,
-        )
-
-    @staticmethod
-    def _restore_symbol_prefix(prefix: str, stripped: str, demangled: str) -> str:
-        """Restore prefix that was removed before demangling.
-
-        Args:
-            prefix: Prefix that was removed (e.g., "_GLOBAL__sub_I_")
-            stripped: Stripped symbol name
-            demangled: Demangled symbol name
-
-        Returns:
-            Demangled name with prefix restored/annotated
-        """
-        if not prefix:
-            return demangled
-
-        # Successfully demangled - add descriptive prefix
-        if demangled != stripped and (
-            annotation := _GCC_PREFIX_ANNOTATIONS.get(prefix)
-        ):
-            return f"[{annotation}: {demangled}]"
-
-        # Failed to demangle - restore original prefix
-        return prefix + demangled
-
-    @staticmethod
-    def _restore_symbol_suffix(original: str, demangled: str) -> str:
-        """Restore GCC optimization suffix that was removed before demangling.
-
-        Args:
-            original: Original symbol name with suffix
-            demangled: Demangled symbol name without suffix
-
-        Returns:
-            Demangled name with suffix annotation
-        """
-        if suffix_match := _GCC_OPTIMIZATION_SUFFIX_PATTERN.search(original):
-            return f"{demangled} [{suffix_match.group(1)}]"
-        return demangled
+        self._demangle_cache = batch_demangle(symbols, objdump_path=self.objdump_path)
+        _LOGGER.info("Successfully demangled %d symbols", len(self._demangle_cache))
 
     def _demangle_symbol(self, symbol: str) -> str:
         """Get demangled C++ symbol name from cache."""
@@ -495,6 +384,446 @@ class MemoryAnalyzer:
 
         return "Other Core"
 
+    def _find_object_files_dir(self) -> Path | None:
+        """Find the directory containing object files for this build.
+
+        Returns:
+            Path to the directory containing .o files, or None if not found.
+        """
+        # The ELF is typically at .pioenvs/<env>/firmware.elf
+        # Object files are in .pioenvs/<env>/src/ and .pioenvs/<env>/lib*/
+        pioenvs_dir = self.elf_path.parent
+        if pioenvs_dir.exists() and any(pioenvs_dir.glob("src/*.o")):
+            return pioenvs_dir
+        return None
+
+    def _scan_cswtch_in_objects(
+        self, obj_dir: Path
+    ) -> dict[str, list[tuple[str, int]]]:
+        """Scan object files for CSWTCH symbols using a single nm invocation.
+
+        Uses ``nm --print-file-name -S`` on all ``.o`` files at once.
+        Output format: ``/path/to/file.o:address size type name``
+
+        Args:
+            obj_dir: Directory containing object files (.pioenvs/<env>/)
+
+        Returns:
+            Dict mapping "CSWTCH$NNN:size" to list of (source_file, size) tuples.
+        """
+        cswtch_map: dict[str, list[tuple[str, int]]] = defaultdict(list)
+
+        if not self.nm_path:
+            return cswtch_map
+
+        # Find all .o files recursively, sorted for deterministic output
+        obj_files = sorted(obj_dir.rglob("*.o"))
+        if not obj_files:
+            return cswtch_map
+
+        _LOGGER.debug("Scanning %d object files for CSWTCH symbols", len(obj_files))
+
+        # Single nm call with --print-file-name for all object files
+        result = run_tool(
+            [self.nm_path, "--print-file-name", "-S"] + [str(f) for f in obj_files],
+            timeout=30,
+        )
+        if result is None or result.returncode != 0:
+            return cswtch_map
+
+        for line in result.stdout.splitlines():
+            if "CSWTCH$" not in line:
+                continue
+
+            # Split on last ":" that precedes a hex address.
+            # nm --print-file-name format: filepath:hex_addr hex_size type name
+            # We split from the right: find the last colon followed by hex digits.
+            parts_after_colon = line.rsplit(":", 1)
+            if len(parts_after_colon) != 2:
+                continue
+
+            file_path = parts_after_colon[0]
+            fields = parts_after_colon[1].split()
+            # fields: [address, size, type, name]
+            if len(fields) < 4:
+                continue
+
+            sym_name = fields[3]
+            if not sym_name.startswith("CSWTCH$"):
+                continue
+
+            try:
+                size = int(fields[1], 16)
+            except ValueError:
+                continue
+
+            # Get relative path from obj_dir for readability
+            try:
+                rel_path = str(Path(file_path).relative_to(obj_dir))
+            except ValueError:
+                rel_path = file_path
+
+            key = f"{sym_name}:{size}"
+            cswtch_map[key].append((rel_path, size))
+
+        return cswtch_map
+
+    def _source_file_to_component(self, source_file: str) -> str:
+        """Map a source object file path to its component name.
+
+        Args:
+            source_file: Relative path like 'src/esphome/components/wifi/wifi_component.cpp.o'
+
+        Returns:
+            Component name like '[esphome]wifi' or the source file if unknown.
+        """
+        parts = Path(source_file).parts
+
+        # ESPHome component: src/esphome/components/<name>/...
+        if "components" in parts:
+            idx = parts.index("components")
+            if idx + 1 < len(parts):
+                component_name = parts[idx + 1]
+                if component_name in get_esphome_components():
+                    return f"{_COMPONENT_PREFIX_ESPHOME}{component_name}"
+                if component_name in self.external_components:
+                    return f"{_COMPONENT_PREFIX_EXTERNAL}{component_name}"
+
+        # ESPHome core: src/esphome/core/... or src/esphome/...
+        if "core" in parts and "esphome" in parts:
+            return _COMPONENT_CORE
+        if "esphome" in parts and "components" not in parts:
+            return _COMPONENT_CORE
+
+        # Framework/library files - return the first path component
+        # e.g., lib65b/ESPAsyncTCP/... -> lib65b
+        #        FrameworkArduino/... -> FrameworkArduino
+        return parts[0] if parts else source_file
+
+    def _analyze_cswtch_symbols(self) -> None:
+        """Analyze CSWTCH (GCC switch table) symbols by tracing to source objects.
+
+        CSWTCH symbols are compiler-generated lookup tables for switch statements.
+        They are local symbols, so the same name can appear in different object files.
+        This method scans .o files to attribute them to their source components.
+        """
+        obj_dir = self._find_object_files_dir()
+        if obj_dir is None:
+            _LOGGER.debug("No object files directory found, skipping CSWTCH analysis")
+            return
+
+        # Scan object files for CSWTCH symbols
+        cswtch_map = self._scan_cswtch_in_objects(obj_dir)
+        if not cswtch_map:
+            _LOGGER.debug("No CSWTCH symbols found in object files")
+            return
+
+        # Collect CSWTCH symbols from the ELF (already parsed in sections)
+        # Include section_name for re-attribution of component totals
+        elf_cswtch = [
+            (symbol_name, size, section_name)
+            for section_name, section in self.sections.items()
+            for symbol_name, size, _ in section.symbols
+            if symbol_name.startswith("CSWTCH$")
+        ]
+
+        _LOGGER.debug(
+            "Found %d CSWTCH symbols in ELF, %d unique in object files",
+            len(elf_cswtch),
+            len(cswtch_map),
+        )
+
+        # Match ELF CSWTCH symbols to source files and re-attribute component totals.
+        # _categorize_symbols() already ran and put these into "other" since CSWTCH$
+        # names don't match any component pattern. We move the bytes to the correct
+        # component based on the object file mapping.
+        other_mem = self.components.get("other")
+
+        for sym_name, size, section_name in elf_cswtch:
+            key = f"{sym_name}:{size}"
+            sources = cswtch_map.get(key, [])
+
+            if len(sources) == 1:
+                source_file = sources[0][0]
+                component = self._source_file_to_component(source_file)
+            elif len(sources) > 1:
+                # Ambiguous - multiple object files have same CSWTCH name+size
+                source_file = "ambiguous"
+                component = "ambiguous"
+                _LOGGER.debug(
+                    "Ambiguous CSWTCH %s (%d B) found in %d files: %s",
+                    sym_name,
+                    size,
+                    len(sources),
+                    ", ".join(src for src, _ in sources),
+                )
+            else:
+                source_file = "unknown"
+                component = "unknown"
+
+            self._cswtch_symbols.append((sym_name, size, source_file, component))
+
+            # Re-attribute from "other" to the correct component
+            if (
+                component not in ("other", "unknown", "ambiguous")
+                and other_mem is not None
+            ):
+                other_mem.add_section_size(section_name, -size)
+                if component not in self.components:
+                    self.components[component] = ComponentMemory(component)
+                self.components[component].add_section_size(section_name, size)
+
+        # Sort by size descending
+        self._cswtch_symbols.sort(key=lambda x: x[1], reverse=True)
+
+        total_size = sum(size for _, size, _, _ in self._cswtch_symbols)
+        _LOGGER.debug(
+            "CSWTCH analysis: %d symbols, %d bytes total",
+            len(self._cswtch_symbols),
+            total_size,
+        )
+
+    def get_unattributed_ram(self) -> tuple[int, int, int]:
+        """Get unattributed RAM sizes (SDK/framework overhead).
+
+        Returns:
+            Tuple of (unattributed_bss, unattributed_data, total_unattributed)
+            These are bytes in RAM sections that have no corresponding symbols.
+        """
+        bss_section = self.sections.get(".bss")
+        data_section = self.sections.get(".data")
+
+        unattributed_bss = 0
+        unattributed_data = 0
+
+        if bss_section:
+            unattributed_bss = max(0, bss_section.total_size - bss_section.symbol_size)
+        if data_section:
+            unattributed_data = max(
+                0, data_section.total_size - data_section.symbol_size
+            )
+
+        return unattributed_bss, unattributed_data, unattributed_bss + unattributed_data
+
+    def _find_sdk_library_dirs(self) -> list[Path]:
+        """Find SDK library directories based on platform.
+
+        Returns:
+            List of paths to SDK library directories containing .a files.
+        """
+        sdk_dirs: list[Path] = []
+
+        if self._idedata is None:
+            return sdk_dirs
+
+        # Get the CC path to determine the framework location
+        cc_path = getattr(self._idedata, "cc_path", None)
+        if not cc_path:
+            return sdk_dirs
+
+        cc_path = Path(cc_path)
+
+        # For ESP8266 Arduino framework
+        # CC is like: ~/.platformio/packages/toolchain-xtensa/bin/xtensa-lx106-elf-gcc
+        # SDK libs are in: ~/.platformio/packages/framework-arduinoespressif8266/tools/sdk/lib/
+        if "xtensa-lx106" in str(cc_path):
+            platformio_dir = cc_path.parent.parent.parent
+            esp8266_sdk = (
+                platformio_dir
+                / "framework-arduinoespressif8266"
+                / "tools"
+                / "sdk"
+                / "lib"
+            )
+            if esp8266_sdk.exists():
+                sdk_dirs.append(esp8266_sdk)
+                # Also check for NONOSDK subdirectories (closed-source libs)
+                sdk_dirs.extend(
+                    subdir
+                    for subdir in esp8266_sdk.iterdir()
+                    if subdir.is_dir() and subdir.name.startswith("NONOSDK")
+                )
+
+        # For ESP32 IDF framework
+        # CC is like: ~/.platformio/packages/toolchain-xtensa-esp-elf/bin/xtensa-esp32-elf-gcc
+        # or: ~/.platformio/packages/toolchain-riscv32-esp/bin/riscv32-esp-elf-gcc
+        elif "xtensa-esp" in str(cc_path) or "riscv32-esp" in str(cc_path):
+            # Detect ESP32 variant from CC path or defines
+            variant = self._detect_esp32_variant()
+            if variant:
+                platformio_dir = cc_path.parent.parent.parent
+                espidf_dir = platformio_dir / "framework-espidf" / "components"
+                if espidf_dir.exists():
+                    # Find all directories named after the variant that contain .a files
+                    # This handles various ESP-IDF library layouts:
+                    # - components/*/lib/<variant>/
+                    # - components/*/<variant>/
+                    # - components/*/lib/lib/<variant>/
+                    # - components/*/*/lib_*/<variant>/
+                    sdk_dirs.extend(
+                        variant_dir
+                        for variant_dir in espidf_dir.rglob(variant)
+                        if variant_dir.is_dir() and any(variant_dir.glob("*.a"))
+                    )
+
+        return sdk_dirs
+
+    def _detect_esp32_variant(self) -> str | None:
+        """Detect ESP32 variant from idedata defines.
+
+        Returns:
+            Variant string like 'esp32', 'esp32s2', 'esp32c3', etc. or None.
+        """
+        if self._idedata is None:
+            return None
+
+        defines = getattr(self._idedata, "defines", [])
+        if not defines:
+            return None
+
+        # ESPHome always adds USE_ESP32_VARIANT_xxx defines
+        variant_prefix = "USE_ESP32_VARIANT_"
+        for define in defines:
+            if define.startswith(variant_prefix):
+                # Extract variant name and convert to lowercase
+                # USE_ESP32_VARIANT_ESP32 -> esp32
+                # USE_ESP32_VARIANT_ESP32S3 -> esp32s3
+                return define[len(variant_prefix) :].lower()
+
+        return None
+
+    def _parse_sdk_library(
+        self, lib_path: Path
+    ) -> tuple[list[tuple[str, int, str, bool]], set[str]]:
+        """Parse a single SDK library for symbols.
+
+        Args:
+            lib_path: Path to the .a library file
+
+        Returns:
+            Tuple of:
+            - List of BSS/DATA symbols: (symbol_name, size, section, is_local)
+            - Set of global BSS/DATA symbol names (for checking if RAM is linked)
+        """
+        ram_symbols: list[tuple[str, int, str, bool]] = []
+        global_ram_symbols: set[str] = set()
+
+        result = run_tool([self.nm_path, "--size-sort", str(lib_path)], timeout=10)
+        if result is None:
+            return ram_symbols, global_ram_symbols
+
+        for line in result.stdout.splitlines():
+            parts = line.split()
+            if len(parts) < 3:
+                continue
+
+            try:
+                size = int(parts[0], 16)
+                sym_type = parts[1]
+                name = parts[2]
+
+                # Only collect BSS (b/B) and DATA (d/D) for RAM analysis
+                if sym_type in ("b", "B"):
+                    section = ".bss"
+                    is_local = sym_type == "b"
+                    ram_symbols.append((name, size, section, is_local))
+                    # Track global RAM symbols (B/D) for linking check
+                    if sym_type == "B":
+                        global_ram_symbols.add(name)
+                elif sym_type in ("d", "D"):
+                    section = ".data"
+                    is_local = sym_type == "d"
+                    ram_symbols.append((name, size, section, is_local))
+                    if sym_type == "D":
+                        global_ram_symbols.add(name)
+            except (ValueError, IndexError):
+                continue
+
+        return ram_symbols, global_ram_symbols
+
+    def _analyze_sdk_libraries(self) -> None:
+        """Analyze SDK libraries to find symbols not in the ELF.
+
+        This finds static/local symbols from closed-source SDK libraries
+        that consume RAM but don't appear in the final ELF symbol table.
+        Only includes symbols from libraries that have RAM actually linked
+        (at least one global BSS/DATA symbol in the ELF).
+        """
+        sdk_dirs = self._find_sdk_library_dirs()
+        if not sdk_dirs:
+            _LOGGER.debug("No SDK library directories found")
+            return
+
+        _LOGGER.debug("Analyzing SDK libraries in %d directories", len(sdk_dirs))
+
+        # Track seen symbols to avoid duplicates from multiple SDK versions
+        seen_symbols: set[str] = set()
+
+        for sdk_dir in sdk_dirs:
+            for lib_path in sorted(sdk_dir.glob("*.a")):
+                lib_name = lib_path.name
+                ram_symbols, global_ram_symbols = self._parse_sdk_library(lib_path)
+
+                # Check if this library's RAM is actually linked by seeing if any
+                # of its global BSS/DATA symbols appear in the ELF
+                if not global_ram_symbols & self._elf_symbol_names:
+                    # No RAM from this library is in the ELF - skip it
+                    continue
+
+                for name, size, section, is_local in ram_symbols:
+                    # Skip if already in ELF or already seen from another lib
+                    if name in self._elf_symbol_names or name in seen_symbols:
+                        continue
+
+                    # Only track symbols with non-zero size
+                    if size > 0:
+                        self._sdk_symbols.append(
+                            SDKSymbol(
+                                name=name,
+                                size=size,
+                                library=lib_name,
+                                section=section,
+                                is_local=is_local,
+                            )
+                        )
+                        seen_symbols.add(name)
+
+        # Demangle SDK symbols for better readability
+        if self._sdk_symbols:
+            sdk_names = [sym.name for sym in self._sdk_symbols]
+            demangled_map = batch_demangle(sdk_names, objdump_path=self.objdump_path)
+            for sym in self._sdk_symbols:
+                sym.demangled = demangled_map.get(sym.name, sym.name)
+
+        # Sort by size descending for reporting
+        self._sdk_symbols.sort(key=lambda s: s.size, reverse=True)
+
+        total_sdk_ram = sum(s.size for s in self._sdk_symbols)
+        _LOGGER.debug(
+            "Found %d SDK symbols not in ELF, totaling %d bytes",
+            len(self._sdk_symbols),
+            total_sdk_ram,
+        )
+
+    def get_sdk_ram_symbols(self) -> list[SDKSymbol]:
+        """Get SDK symbols that consume RAM but aren't in the ELF symbol table.
+
+        Returns:
+            List of SDKSymbol objects sorted by size descending.
+        """
+        return self._sdk_symbols
+
+    def get_sdk_ram_by_library(self) -> dict[str, list[SDKSymbol]]:
+        """Get SDK RAM symbols grouped by library.
+
+        Returns:
+            Dictionary mapping library name to list of symbols.
+        """
+        by_lib: dict[str, list[SDKSymbol]] = defaultdict(list)
+        for sym in self._sdk_symbols:
+            by_lib[sym.library].append(sym)
+        return dict(by_lib)
+
 
 if __name__ == "__main__":
     from .cli import main

esphome/analyze_memory/cli.py

@@ -1,20 +1,41 @@
 """CLI interface for memory analysis with report generation."""
 
+from __future__ import annotations
+
 from collections import defaultdict
+from collections.abc import Callable
+import heapq
+from operator import itemgetter
 import sys
+from typing import TYPE_CHECKING
 
 from . import (
     _COMPONENT_API,
     _COMPONENT_CORE,
     _COMPONENT_PREFIX_ESPHOME,
     _COMPONENT_PREFIX_EXTERNAL,
+    RAM_SECTIONS,
     MemoryAnalyzer,
 )
 
+if TYPE_CHECKING:
+    from . import ComponentMemory
+
 
 class MemoryAnalyzerCLI(MemoryAnalyzer):
     """Memory analyzer with CLI-specific report generation."""
 
+    # Symbol size threshold for detailed analysis
+    SYMBOL_SIZE_THRESHOLD: int = (
+        100  # Show symbols larger than this in detailed analysis
+    )
+    # Lower threshold for RAM symbols (RAM is more constrained)
+    RAM_SYMBOL_SIZE_THRESHOLD: int = 24
+    # Number of top symbols to show in the largest symbols report
+    TOP_SYMBOLS_LIMIT: int = 30
+    # Width for symbol name display in top symbols report
+    COL_TOP_SYMBOL_NAME: int = 55
+
     # Column width constants
     COL_COMPONENT: int = 29
     COL_FLASH_TEXT: int = 14
@@ -78,6 +99,137 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
         COL_CORE_PERCENT,
     )
 
+    def _add_section_header(self, lines: list[str], title: str) -> None:
+        """Add a section header with title centered between separator lines."""
+        lines.append("")
+        lines.append("=" * self.TABLE_WIDTH)
+        lines.append(title.center(self.TABLE_WIDTH))
+        lines.append("=" * self.TABLE_WIDTH)
+        lines.append("")
+
+    def _add_top_consumers(
+        self,
+        lines: list[str],
+        title: str,
+        components: list[tuple[str, ComponentMemory]],
+        get_size: Callable[[ComponentMemory], int],
+        total: int,
+        memory_type: str,
+        limit: int = 25,
+    ) -> None:
+        """Add a formatted list of top memory consumers to the report.
+
+        Args:
+            lines: List of report lines to append the output to.
+            title: Section title to print before the list.
+            components: Sequence of (name, ComponentMemory) tuples to analyze.
+            get_size: Callable that takes a ComponentMemory and returns the
+                size in bytes to use for ranking and display.
+            total: Total size in bytes for computing percentage usage.
+            memory_type: Label for the memory region (e.g., "flash" or "RAM").
+            limit: Maximum number of components to include in the list.
+        """
+        lines.append("")
+        lines.append(f"{title}:")
+        for i, (name, mem) in enumerate(components[:limit]):
+            size = get_size(mem)
+            if size > 0:
+                percentage = (size / total * 100) if total > 0 else 0
+                lines.append(
+                    f"{i + 1}. {name} ({size:,} B) - {percentage:.1f}% of analyzed {memory_type}"
+                )
+
+    def _format_symbol_with_section(
+        self, demangled: str, size: int, section: str | None = None
+    ) -> str:
+        """Format a symbol entry, optionally adding a RAM section label.
+
+        If section is one of the RAM sections (.data or .bss), a label like
+        " [data]" or " [bss]" is appended. For non-RAM sections or when
+        section is None, no section label is added.
+        """
+        section_label = ""
+        if section in RAM_SECTIONS:
+            section_label = f" [{section[1:]}]"  # .data -> [data], .bss -> [bss]
+        return f"{demangled} ({size:,} B){section_label}"
+
+    def _add_top_symbols(self, lines: list[str]) -> None:
+        """Add a section showing the top largest symbols in the binary."""
+        # Collect all symbols from all components: (symbol, demangled, size, section, component)
+        all_symbols = [
+            (symbol, demangled, size, section, component)
+            for component, symbols in self._component_symbols.items()
+            for symbol, demangled, size, section in symbols
+        ]
+
+        # Get top N symbols by size using heapq for efficiency
+        top_symbols = heapq.nlargest(
+            self.TOP_SYMBOLS_LIMIT, all_symbols, key=itemgetter(2)
+        )
+
+        lines.append("")
+        lines.append(f"Top {self.TOP_SYMBOLS_LIMIT} Largest Symbols:")
+        # Calculate truncation limit from column width (leaving room for "...")
+        truncate_limit = self.COL_TOP_SYMBOL_NAME - 3
+        for i, (_, demangled, size, section, component) in enumerate(top_symbols):
+            # Format section label
+            section_label = f"[{section[1:]}]" if section else ""
+            # Truncate demangled name if too long
+            demangled_display = (
+                f"{demangled[:truncate_limit]}..."
+                if len(demangled) > self.COL_TOP_SYMBOL_NAME
+                else demangled
+            )
+            lines.append(
+                f"{i + 1:>2}. {size:>7,} B {section_label:<8} {demangled_display:<{self.COL_TOP_SYMBOL_NAME}} {component}"
+            )
+
+    def _add_cswtch_analysis(self, lines: list[str]) -> None:
+        """Add CSWTCH (GCC switch table lookup) analysis section."""
+        self._add_section_header(lines, "CSWTCH Analysis (GCC Switch Table Lookups)")
+
+        total_size = sum(size for _, size, _, _ in self._cswtch_symbols)
+        lines.append(
+            f"Total: {len(self._cswtch_symbols)} switch table(s), {total_size:,} B"
+        )
+        lines.append("")
+
+        # Group by component
+        by_component: dict[str, list[tuple[str, int, str]]] = defaultdict(list)
+        for sym_name, size, source_file, component in self._cswtch_symbols:
+            by_component[component].append((sym_name, size, source_file))
+
+        # Sort components by total size descending
+        sorted_components = sorted(
+            by_component.items(),
+            key=lambda x: sum(s[1] for s in x[1]),
+            reverse=True,
+        )
+
+        for component, symbols in sorted_components:
+            comp_total = sum(s[1] for s in symbols)
+            lines.append(f"{component} ({comp_total:,} B, {len(symbols)} tables):")
+
+            # Group by source file within component
+            by_file: dict[str, list[tuple[str, int]]] = defaultdict(list)
+            for sym_name, size, source_file in symbols:
+                by_file[source_file].append((sym_name, size))
+
+            for source_file, file_symbols in sorted(
+                by_file.items(),
+                key=lambda x: sum(s[1] for s in x[1]),
+                reverse=True,
+            ):
+                file_total = sum(s[1] for s in file_symbols)
+                lines.append(
+                    f"  {source_file} ({file_total:,} B, {len(file_symbols)} tables)"
+                )
+                for sym_name, size in sorted(
+                    file_symbols, key=lambda x: x[1], reverse=True
+                ):
+                    lines.append(f"    {size:>6,} B  {sym_name}")
+            lines.append("")
+
     def generate_report(self, detailed: bool = False) -> str:
         """Generate a formatted memory report."""
         components = sorted(
@@ -118,43 +270,73 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             f"{total_flash:>{self.COL_TOTAL_FLASH - 2},} B | {total_ram:>{self.COL_TOTAL_RAM - 2},} B"
         )
 
-        # Top consumers
-        lines.append("")
-        lines.append("Top Flash Consumers:")
-        for i, (name, mem) in enumerate(components[:25]):
-            if mem.flash_total > 0:
-                percentage = (
-                    (mem.flash_total / total_flash * 100) if total_flash > 0 else 0
-                )
-                lines.append(
-                    f"{i + 1}. {name} ({mem.flash_total:,} B) - {percentage:.1f}% of analyzed flash"
-                )
-
-        lines.append("")
-        lines.append("Top RAM Consumers:")
-        ram_components = sorted(components, key=lambda x: x[1].ram_total, reverse=True)
-        for i, (name, mem) in enumerate(ram_components[:25]):
-            if mem.ram_total > 0:
-                percentage = (mem.ram_total / total_ram * 100) if total_ram > 0 else 0
-                lines.append(
-                    f"{i + 1}. {name} ({mem.ram_total:,} B) - {percentage:.1f}% of analyzed RAM"
-                )
-
-        lines.append("")
-        lines.append(
-            "Note: This analysis covers symbols in the ELF file. Some runtime allocations may not be included."
+        # Show unattributed RAM (SDK/framework overhead)
+        unattributed_bss, unattributed_data, unattributed_total = (
+            self.get_unattributed_ram()
         )
-        lines.append("=" * self.TABLE_WIDTH)
+        if unattributed_total > 0:
+            lines.append("")
+            lines.append(
+                f"Unattributed RAM: {unattributed_total:,} B (SDK/framework overhead)"
+            )
+            if unattributed_bss > 0 and unattributed_data > 0:
+                lines.append(
+                    f"  .bss: {unattributed_bss:,} B | .data: {unattributed_data:,} B"
+                )
+
+            # Show SDK symbol breakdown if available
+            sdk_by_lib = self.get_sdk_ram_by_library()
+            if sdk_by_lib:
+                lines.append("")
+                lines.append("SDK library breakdown (static symbols not in ELF):")
+                # Sort libraries by total size
+                lib_totals = [
+                    (lib, sum(s.size for s in syms), syms)
+                    for lib, syms in sdk_by_lib.items()
+                ]
+                lib_totals.sort(key=lambda x: x[1], reverse=True)
+
+                for lib_name, lib_total, syms in lib_totals:
+                    if lib_total == 0:
+                        continue
+                    lines.append(f"  {lib_name}: {lib_total:,} B")
+                    # Show top symbols from this library
+                    for sym in sorted(syms, key=lambda s: s.size, reverse=True)[:3]:
+                        section_label = sym.section.lstrip(".")
+                        # Use demangled name (falls back to original if not demangled)
+                        display_name = sym.demangled or sym.name
+                        if len(display_name) > 50:
+                            display_name = f"{display_name[:47]}..."
+                        lines.append(
+                            f"    {sym.size:>6,} B [{section_label}] {display_name}"
+                        )
+
+        # Top consumers
+        self._add_top_consumers(
+            lines,
+            "Top Flash Consumers",
+            components,
+            lambda m: m.flash_total,
+            total_flash,
+            "flash",
+        )
+
+        ram_components = sorted(components, key=lambda x: x[1].ram_total, reverse=True)
+        self._add_top_consumers(
+            lines,
+            "Top RAM Consumers",
+            ram_components,
+            lambda m: m.ram_total,
+            total_ram,
+            "RAM",
+        )
+
+        # Top largest symbols in the binary
+        self._add_top_symbols(lines)
 
         # Add ESPHome core detailed analysis if there are core symbols
         if self._esphome_core_symbols:
-            lines.append("")
-            lines.append("=" * self.TABLE_WIDTH)
-            lines.append(
-                f"{_COMPONENT_CORE} Detailed Analysis".center(self.TABLE_WIDTH)
-            )
-            lines.append("=" * self.TABLE_WIDTH)
-            lines.append("")
+            self._add_section_header(lines, f"{_COMPONENT_CORE} Detailed Analysis")
 
             # Group core symbols by subcategory
             core_subcategories: dict[str, list[tuple[str, str, int]]] = defaultdict(
@@ -191,15 +373,26 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                     f"{len(symbols):>{self.COL_CORE_COUNT}} | {percentage:>{self.COL_CORE_PERCENT - 1}.1f}%"
                 )
 
-            # Top 15 largest core symbols
+            # All core symbols above threshold
             lines.append("")
-            lines.append(f"Top 15 Largest {_COMPONENT_CORE} Symbols:")
             sorted_core_symbols = sorted(
                 self._esphome_core_symbols, key=lambda x: x[2], reverse=True
             )
+            large_core_symbols = [
+                (symbol, demangled, size)
+                for symbol, demangled, size in sorted_core_symbols
+                if size > self.SYMBOL_SIZE_THRESHOLD
+            ]
 
-            for i, (symbol, demangled, size) in enumerate(sorted_core_symbols[:15]):
-                lines.append(f"{i + 1}. {demangled} ({size:,} B)")
+            lines.append(
+                f"{_COMPONENT_CORE} Symbols > {self.SYMBOL_SIZE_THRESHOLD} B ({len(large_core_symbols)} symbols):"
+            )
+            for i, (symbol, demangled, size) in enumerate(large_core_symbols):
+                # Core symbols only track (symbol, demangled, size) without section info,
+                # so we don't show section labels here
+                lines.append(
+                    f"{i + 1}. {self._format_symbol_with_section(demangled, size)}"
+                )
 
             lines.append("=" * self.TABLE_WIDTH)
 
@@ -231,9 +424,22 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                 api_component = (name, mem)
                 break
 
-        # Combine all components to analyze: top ESPHome + all external + API if not already included
-        components_to_analyze = list(top_esphome_components) + list(
-            top_external_components
+        # Also include wifi_stack and other important system components if they exist
+        system_components_to_include = [
+            # Empty list - we've finished debugging symbol categorization
+            # Add component names here if you need to debug their symbols
+        ]
+        system_components = [
+            (name, mem)
+            for name, mem in components
+            if name in system_components_to_include
+        ]
+
+        # Combine all components to analyze: top ESPHome + all external + API if not already included + system components
+        components_to_analyze = (
+            list(top_esphome_components)
+            + list(top_external_components)
+            + system_components
         )
         if api_component and api_component not in components_to_analyze:
             components_to_analyze.append(api_component)
@@ -242,11 +448,7 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             for comp_name, comp_mem in components_to_analyze:
                 if not (comp_symbols := self._component_symbols.get(comp_name, [])):
                     continue
-                lines.append("")
-                lines.append("=" * self.TABLE_WIDTH)
-                lines.append(f"{comp_name} Detailed Analysis".center(self.TABLE_WIDTH))
-                lines.append("=" * self.TABLE_WIDTH)
-                lines.append("")
+                self._add_section_header(lines, f"{comp_name} Detailed Analysis")
 
                 # Sort symbols by size
                 sorted_symbols = sorted(comp_symbols, key=lambda x: x[2], reverse=True)
@@ -255,19 +457,75 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                 lines.append(f"Total size: {comp_mem.flash_total:,} B")
                 lines.append("")
 
-                # Show all symbols > 100 bytes for better visibility
+                # Show all symbols above threshold for better visibility
                 large_symbols = [
-                    (sym, dem, size) for sym, dem, size in sorted_symbols if size > 100
+                    (sym, dem, size, sec)
+                    for sym, dem, size, sec in sorted_symbols
+                    if size > self.SYMBOL_SIZE_THRESHOLD
                 ]
 
                 lines.append(
-                    f"{comp_name} Symbols > 100 B ({len(large_symbols)} symbols):"
+                    f"{comp_name} Symbols > {self.SYMBOL_SIZE_THRESHOLD} B ({len(large_symbols)} symbols):"
                 )
-                for i, (symbol, demangled, size) in enumerate(large_symbols):
-                    lines.append(f"{i + 1}. {demangled} ({size:,} B)")
+                for i, (symbol, demangled, size, section) in enumerate(large_symbols):
+                    lines.append(
+                        f"{i + 1}. {self._format_symbol_with_section(demangled, size, section)}"
+                    )
 
                 lines.append("=" * self.TABLE_WIDTH)
 
+        # Detailed RAM analysis by component (at end, before RAM strings analysis)
+        self._add_section_header(lines, "RAM Symbol Analysis by Component")
+
+        # Show top 15 RAM consumers with their large symbols
+        for name, mem in ram_components[:15]:
+            if mem.ram_total == 0:
+                continue
+            ram_syms = self._ram_symbols.get(name, [])
+            if not ram_syms:
+                continue
+
+            # Sort by size descending
+            sorted_ram_syms = sorted(ram_syms, key=lambda x: x[2], reverse=True)
+            large_ram_syms = [
+                s for s in sorted_ram_syms if s[2] > self.RAM_SYMBOL_SIZE_THRESHOLD
+            ]
+
+            lines.append(f"{name} ({mem.ram_total:,} B total RAM):")
+
+            # Show breakdown by section type
+            data_size = sum(s[2] for s in ram_syms if s[3] == ".data")
+            bss_size = sum(s[2] for s in ram_syms if s[3] == ".bss")
+            lines.append(f"  .data (initialized): {data_size:,} B")
+            lines.append(f"  .bss (uninitialized): {bss_size:,} B")
+
+            if large_ram_syms:
+                lines.append(
+                    f"  Symbols > {self.RAM_SYMBOL_SIZE_THRESHOLD} B ({len(large_ram_syms)}):"
+                )
+                for symbol, demangled, size, section in large_ram_syms[:10]:
+                    # Format section label consistently by stripping leading dot
+                    section_label = section.lstrip(".") if section else ""
+                    # Add ellipsis if name is truncated
+                    demangled_display = (
+                        f"{demangled[:70]}..." if len(demangled) > 70 else demangled
+                    )
+                    lines.append(
+                        f"    {size:>6,} B [{section_label}] {demangled_display}"
+                    )
+                if len(large_ram_syms) > 10:
+                    lines.append(f"    ... and {len(large_ram_syms) - 10} more")
+            lines.append("")
+
+        # CSWTCH (GCC switch table) analysis
+        if self._cswtch_symbols:
+            self._add_cswtch_analysis(lines)
+
+        lines.append(
+            "Note: This analysis covers symbols in the ELF file. Some runtime allocations may not be included."
+        )
+        lines.append("=" * self.TABLE_WIDTH)
+
         return "\n".join(lines)
 
     def dump_uncategorized_symbols(self, output_file: str | None = None) -> None:

esphome/analyze_memory/const.py

@@ -7,20 +7,63 @@ ESPHOME_COMPONENT_PATTERN = re.compile(r"esphome::([a-zA-Z0-9_]+)::")
 
 # Section mapping for ELF file sections
 # Maps standard section names to their various platform-specific variants
+# Note: Order matters! More specific patterns (.bss) must come before general ones (.dram)
+# because ESP-IDF uses names like ".dram0.bss" which would match ".dram" otherwise
+#
+# Platform-specific sections:
+# - ESP8266/ESP32: .iram*, .dram*
+# - LibreTiny RTL87xx: .xip.code_* (flash), .ram.code_* (RAM)
+# - LibreTiny BK7231: .itcm.code (fast RAM), .vectors (interrupt vectors)
+# - LibreTiny LN882X: .flash_text, .flash_copy* (flash code)
+# - Zephyr/nRF52: text, rodata, datas, bss (no leading dots)
 SECTION_MAPPING = {
-    ".text": frozenset([".text", ".iram"]),
-    ".rodata": frozenset([".rodata"]),
-    ".data": frozenset([".data", ".dram"]),
-    ".bss": frozenset([".bss"]),
-}
-
-# Section to ComponentMemory attribute mapping
-# Maps section names to the attribute name in ComponentMemory dataclass
-SECTION_TO_ATTR = {
-    ".text": "text_size",
-    ".rodata": "rodata_size",
-    ".data": "data_size",
-    ".bss": "bss_size",
+    ".text": frozenset(
+        [
+            ".text",
+            ".iram",
+            # LibreTiny RTL87xx XIP (eXecute In Place) flash code
+            ".xip.code",
+            # LibreTiny RTL87xx RAM code
+            ".ram.code_text",
+            # LibreTiny BK7231 fast RAM code and vectors
+            ".itcm.code",
+            ".vectors",
+            # LibreTiny LN882X flash code
+            ".flash_text",
+            ".flash_copy",
+            # Zephyr/nRF52 sections (no leading dots)
+            "text",
+            "rom_start",
+        ]
+    ),
+    ".rodata": frozenset(
+        [
+            ".rodata",
+            # LibreTiny RTL87xx read-only data in RAM
+            ".ram.code_rodata",
+            # Zephyr/nRF52 sections (no leading dots)
+            "rodata",
+        ]
+    ),
+    # .bss patterns - must be before .data to catch ".dram0.bss"
+    ".bss": frozenset(
+        [
+            ".bss",
+            # LibreTiny LN882X BSS
+            ".bss_ram",
+            # Zephyr/nRF52 sections (no leading dots)
+            "bss",
+            "noinit",
+        ]
+    ),
+    ".data": frozenset(
+        [
+            ".data",
+            ".dram",
+            # Zephyr/nRF52 sections (no leading dots)
+            "datas",
+        ]
+    ),
 }
 
 # Component identification rules
@@ -88,6 +131,77 @@ SYMBOL_PATTERNS = {
         "sys_mbox_new",
         "sys_arch_mbox_tryfetch",
     ],
+    # LibreTiny/Beken BK7231 radio calibration
+    "bk_radio_cal": [
+        "bk7011_",
+        "calibration_main",
+        "gcali_",
+        "rwnx_cal",
+    ],
+    # LibreTiny/Beken WiFi MAC layer
+    "bk_wifi_mac": [
+        "rxu_",  # RX upper layer
+        "txu_",  # TX upper layer
+        "txl_",  # TX lower layer
+        "rxl_",  # RX lower layer
+        "scanu_",  # Scan unit
+        "mm_hw_",  # MAC management hardware
+        "mm_bcn",  # MAC management beacon
+        "mm_tim",  # MAC management TIM
+        "mm_check",  # MAC management checks
+        "sm_connect",  # Station management
+        "me_beacon",  # Management entity beacon
+        "me_build",  # Management entity build
+        "hapd_",  # Host AP daemon
+        "chan_pre_",  # Channel management
+        "handle_probe_",  # Probe handling
+    ],
+    # LibreTiny/Beken system control
+    "bk_system": [
+        "sctrl_",  # System control
+        "icu_ctrl",  # Interrupt control unit
+        "gdma_ctrl",  # DMA control
+        "mpb_ctrl",  # MPB control
+        "uf2_",  # UF2 OTA
+        "bkreg_",  # Beken registers
+    ],
+    # LibreTiny/Beken BLE stack
+    "bk_ble": [
+        "gapc_",  # GAP client
+        "gattc_",  # GATT client
+        "attc_",  # ATT client
+        "attmdb_",  # ATT database
+        "atts_",  # ATT server
+        "l2cc_",  # L2CAP
+        "prf_env",  # Profile environment
+    ],
+    # LibreTiny/Beken scheduler
+    "bk_scheduler": [
+        "sch_plan_",  # Scheduler plan
+        "sch_prog_",  # Scheduler program
+        "sch_arb_",  # Scheduler arbiter
+    ],
+    # LibreTiny/Beken DMA descriptors
+    "bk_dma": [
+        "rx_payload_desc",
+        "rx_dma_hdrdesc",
+        "tx_hw_desc",
+        "host_event_data",
+        "host_cmd_data",
+    ],
+    # ARM EABI compiler runtime (LibreTiny uses ARM Cortex-M)
+    "arm_runtime": [
+        "__aeabi_",
+        "__adddf3",
+        "__subdf3",
+        "__muldf3",
+        "__divdf3",
+        "__addsf3",
+        "__subsf3",
+        "__mulsf3",
+        "__divsf3",
+        "__gnu_unwind",
+    ],
     "xtensa": ["xt_", "_xt_", "xPortEnterCriticalTimeout"],
     "heap": ["heap_", "multi_heap"],
     "spi_flash": ["spi_flash"],
@@ -127,40 +241,39 @@ SYMBOL_PATTERNS = {
         "tryget_socket_unconn",
         "cs_create_ctrl_sock",
         "netbuf_alloc",
+        "tcp_",  # TCP protocol functions
+        "udp_",  # UDP protocol functions
+        "lwip_",  # LwIP stack functions
+        "eagle_lwip",  # ESP-specific LwIP functions
+        "new_linkoutput",  # Link output function
+        "acd_",  # Address Conflict Detection (ACD)
+        "eth_",  # Ethernet functions
+        "mac_enable_bb",  # MAC baseband enable
+        "reassemble_and_dispatch",  # Packet reassembly
     ],
+    # dhcp must come before libc to avoid "dhcp_select" matching "select" pattern
+    "dhcp": ["dhcp", "handle_dhcp"],
     "ipv6_stack": ["nd6_", "ip6_", "mld6_", "icmp6_", "icmp6_input"],
-    "wifi_stack": [
-        "ieee80211",
-        "hostap",
-        "sta_",
-        "ap_",
-        "scan_",
-        "wifi_",
-        "wpa_",
-        "wps_",
-        "esp_wifi",
-        "cnx_",
-        "wpa3_",
-        "sae_",
-        "wDev_",
-        "ic_",
-        "mac_",
-        "esf_buf",
-        "gWpaSm",
-        "sm_WPA",
-        "eapol_",
-        "owe_",
-        "wifiLowLevelInit",
-        "s_do_mapping",
-        "gScanStruct",
-        "ppSearchTxframe",
-        "ppMapWaitTxq",
-        "ppFillAMPDUBar",
-        "ppCheckTxConnTrafficIdle",
-        "ppCalTkipMic",
+    # Order matters! More specific categories must come before general ones.
+    # mdns must come before bluetooth to avoid "_mdns_disable_pcb" matching "ble_" pattern
+    "mdns_lib": ["mdns"],
+    # memory_mgmt must come before wifi_stack to catch mmu_hal_* symbols
+    "memory_mgmt": [
+        "mem_",
+        "memory_",
+        "tlsf_",
+        "memp_",
+        "pbuf_",
+        "pbuf_alloc",
+        "pbuf_copy_partial_pbuf",
+        "esp_mmu_map",
+        "mmu_hal_",
+        "s_do_mapping",  # Memory mapping function, not WiFi
+        "hash_map_",  # Hash map data structure
+        "umm_assimilate",  # UMM malloc assimilation
     ],
-    "bluetooth": ["bt_", "ble_", "l2c_", "gatt_", "gap_", "hci_", "BT_init"],
-    "wifi_bt_coex": ["coex"],
+    # Bluetooth categories must come BEFORE wifi_stack to avoid misclassification
+    # Many BLE symbols contain patterns like "ble_" that would otherwise match wifi patterns
     "bluetooth_rom": ["r_ble", "r_lld", "r_llc", "r_llm"],
     "bluedroid_bt": [
         "bluedroid",
@@ -207,6 +320,61 @@ SYMBOL_PATTERNS = {
         "copy_extra_byte_in_db",
         "parse_read_local_supported_commands_response",
     ],
+    "bluetooth": [
+        "bt_",
+        "_ble_",  # More specific than "ble_" to avoid matching "able_", "enable_", "disable_"
+        "l2c_",
+        "l2ble_",  # L2CAP for BLE
+        "gatt_",
+        "gap_",
+        "hci_",
+        "btsnd_hcic_",  # Bluetooth HCI command send functions
+        "BT_init",
+        "BT_tx_",  # Bluetooth transmit functions
+        "esp_ble_",  # Catch esp_ble_* functions
+    ],
+    "bluetooth_ll": [
+        "llm_",  # Link layer manager
+        "llc_",  # Link layer control
+        "lld_",  # Link layer driver
+        "ld_acl_",  # Link layer ACL (Asynchronous Connection-Oriented)
+        "llcp_",  # Link layer control protocol
+        "lmp_",  # Link manager protocol
+    ],
+    "wifi_bt_coex": ["coex"],
+    "wifi_stack": [
+        "ieee80211",
+        "hostap",
+        "sta_",
+        "wifi_ap_",  # More specific than "ap_" to avoid matching "cap_", "map_"
+        "wifi_scan_",  # More specific than "scan_" to avoid matching "_scan_" in other contexts
+        "wifi_",
+        "wpa_",
+        "wps_",
+        "esp_wifi",
+        "cnx_",
+        "wpa3_",
+        "sae_",
+        "wDev_",
+        "ic_mac_",  # More specific than "mac_" to avoid matching emac_
+        "esf_buf",
+        "gWpaSm",
+        "sm_WPA",
+        "eapol_",
+        "owe_",
+        "wifiLowLevelInit",
+        # Removed "s_do_mapping" - this is memory management, not WiFi
+        "gScanStruct",
+        "ppSearchTxframe",
+        "ppMapWaitTxq",
+        "ppFillAMPDUBar",
+        "ppCheckTxConnTrafficIdle",
+        "ppCalTkipMic",
+        "phy_force_wifi",
+        "phy_unforce_wifi",
+        "write_wifi_chan",
+        "wifi_track_pll",
+    ],
     "crypto_math": [
         "ecp_",
         "bignum_",
@@ -231,13 +399,36 @@ SYMBOL_PATTERNS = {
         "p_256_init_curve",
         "shift_sub_rows",
         "rshift",
+        "rijndaelEncrypt",  # AES Rijndael encryption
+    ],
+    # System and Arduino core functions must come before libc
+    "esp_system": [
+        "system_",  # ESP system functions
+        "postmortem_",  # Postmortem reporting
+    ],
+    "arduino_core": [
+        "pinMode",
+        "resetPins",
+        "millis",
+        "micros",
+        "delay(",  # More specific - Arduino delay function with parenthesis
+        "delayMicroseconds",
+        "digitalWrite",
+        "digitalRead",
+    ],
+    "sntp": ["sntp_", "sntp_recv"],
+    "scheduler": [
+        "run_scheduled_",
+        "compute_scheduled_",
+        "event_TaskQueue",
     ],
     "hw_crypto": ["esp_aes", "esp_sha", "esp_rsa", "esp_bignum", "esp_mpi"],
     "libc": [
         "printf",
         "scanf",
         "malloc",
-        "free",
+        "_free",  # More specific than "free" to match _free, __free_r, etc. but not arbitrary "free" substring
+        "umm_free",  # UMM malloc free function
         "memcpy",
         "memset",
         "strcpy",
@@ -259,7 +450,7 @@ SYMBOL_PATTERNS = {
         "_setenv_r",
         "_tzset_unlocked_r",
         "__tzcalc_limits",
-        "select",
+        "_select",  # More specific than "select" to avoid matching "dhcp_select", etc.
         "scalbnf",
         "strtof",
         "strtof_l",
@@ -313,11 +504,29 @@ SYMBOL_PATTERNS = {
         "__FUNCTION__$",
         "DAYS_IN_MONTH",
         "_DAYS_BEFORE_MONTH",
-        "CSWTCH$",
+        # Note: CSWTCH$ symbols are GCC switch table lookup tables.
+        # They are attributed to their source object files via _analyze_cswtch_symbols()
+        # rather than being lumped into libc.
         "dst$",
         "sulp",
+        "_strtol_l",  # String to long with locale
+        "__cvt",  # Convert
+        "__utoa",  # Unsigned to ASCII
+        "__global_locale",  # Global locale
+        "_ctype_",  # Character type
+        "impure_data",  # Impure data
+    ],
+    "string_ops": [
+        "strcmp",
+        "strncmp",
+        "strchr",
+        "strstr",
+        "strtok",
+        "strdup",
+        "strncasecmp_P",  # String compare (case insensitive, from program memory)
+        "strnlen_P",  # String length (from program memory)
+        "strncat_P",  # String concatenate (from program memory)
     ],
-    "string_ops": ["strcmp", "strncmp", "strchr", "strstr", "strtok", "strdup"],
     "memory_alloc": ["malloc", "calloc", "realloc", "free", "_sbrk"],
     "file_io": [
         "fread",
@@ -338,10 +547,26 @@ SYMBOL_PATTERNS = {
         "vsscanf",
     ],
     "cpp_anonymous": ["_GLOBAL__N_", "n$"],
-    "cpp_runtime": ["__cxx", "_ZN", "_ZL", "_ZSt", "__gxx_personality", "_Z16"],
-    "exception_handling": ["__cxa_", "_Unwind_", "__gcc_personality", "uw_frame_state"],
+    # Plain C patterns only - C++ symbols will be categorized via DEMANGLED_PATTERNS
+    "nvs": ["nvs_"],  # Plain C NVS functions
+    "ota": ["ota_", "OTA", "esp_ota", "app_desc"],
+    # cpp_runtime: Removed _ZN, _ZL to let DEMANGLED_PATTERNS categorize C++ symbols properly
+    # Only keep patterns that are truly runtime-specific and not categorizable by namespace
+    "cpp_runtime": ["__cxx", "_ZSt", "__gxx_personality", "_Z16"],
+    "exception_handling": [
+        "__cxa_",
+        "_Unwind_",
+        "__gcc_personality",
+        "uw_frame_state",
+        "search_object",  # Search for exception handling object
+        "get_cie_encoding",  # Get CIE encoding
+        "add_fdes",  # Add frame description entries
+        "fde_unencoded_compare",  # Compare FDEs
+        "fde_mixed_encoding_compare",  # Compare mixed encoding FDEs
+        "frame_downheap",  # Frame heap operations
+        "frame_heapsort",  # Frame heap sorting
+    ],
     "static_init": ["_GLOBAL__sub_I_"],
-    "mdns_lib": ["mdns"],
     "phy_radio": [
         "phy_",
         "rf_",
@@ -394,10 +619,47 @@ SYMBOL_PATTERNS = {
         "txcal_debuge_mode",
         "ant_wifitx_cfg",
         "reg_init_begin",
+        "tx_cap_init",  # TX capacitance init
+        "ram_set_txcap",  # RAM TX capacitance setting
+        "tx_atten_",  # TX attenuation
+        "txiq_",  # TX I/Q calibration
+        "ram_cal_",  # RAM calibration
+        "ram_rxiq_",  # RAM RX I/Q
+        "readvdd33",  # Read VDD33
+        "test_tout",  # Test timeout
+        "tsen_meas",  # Temperature sensor measurement
+        "bbpll_cal",  # Baseband PLL calibration
+        "set_cal_",  # Set calibration
+        "set_rfanagain_",  # Set RF analog gain
+        "set_txdc_",  # Set TX DC
+        "get_vdd33_",  # Get VDD33
+        "gen_rx_gain_table",  # Generate RX gain table
+        "ram_ana_inf_gating_en",  # RAM analog interface gating enable
+        "tx_cont_en",  # TX continuous enable
+        "tx_delay_cfg",  # TX delay configuration
+        "tx_gain_table_set",  # TX gain table set
+        "check_and_reset_hw_deadlock",  # Hardware deadlock check
+        "s_config",  # System/hardware config
+        "chan14_mic_cfg",  # Channel 14 MIC config
+    ],
+    "wifi_phy_pp": [
+        "pp_",
+        "ppT",
+        "ppR",
+        "ppP",
+        "ppInstall",
+        "ppCalTxAMPDULength",
+        "ppCheckTx",  # Packet processor TX check
+        "ppCal",  # Packet processor calibration
+        "HdlAllBuffedEb",  # Handle buffered EB
     ],
-    "wifi_phy_pp": ["pp_", "ppT", "ppR", "ppP", "ppInstall", "ppCalTxAMPDULength"],
     "wifi_lmac": ["lmac"],
-    "wifi_device": ["wdev", "wDev_"],
+    "wifi_device": [
+        "wdev",
+        "wDev_",
+        "ic_set_sta",  # Set station mode
+        "ic_set_vif",  # Set virtual interface
+    ],
     "power_mgmt": [
         "pm_",
         "sleep",
@@ -406,15 +668,7 @@ SYMBOL_PATTERNS = {
         "deep_sleep",
         "power_down",
         "g_pm",
-    ],
-    "memory_mgmt": [
-        "mem_",
-        "memory_",
-        "tlsf_",
-        "memp_",
-        "pbuf_",
-        "pbuf_alloc",
-        "pbuf_copy_partial_pbuf",
+        "pmc",  # Power Management Controller
     ],
     "hal_layer": ["hal_"],
     "clock_mgmt": [
@@ -439,7 +693,6 @@ SYMBOL_PATTERNS = {
     "error_handling": ["panic", "abort", "assert", "error_", "fault"],
     "authentication": ["auth"],
     "ppp_protocol": ["ppp", "ipcp_", "lcp_", "chap_", "LcpEchoCheck"],
-    "dhcp": ["dhcp", "handle_dhcp"],
     "ethernet_phy": [
         "emac_",
         "eth_phy_",
@@ -618,7 +871,15 @@ SYMBOL_PATTERNS = {
         "ampdu_dispatch_upto",
     ],
     "ieee802_11": ["ieee802_11_", "ieee802_11_parse_elems"],
-    "rate_control": ["rssi_margin", "rcGetSched", "get_rate_fcc_index"],
+    "rate_control": [
+        "rssi_margin",
+        "rcGetSched",
+        "get_rate_fcc_index",
+        "rcGetRate",  # Get rate
+        "rc_get_",  # Rate control getters
+        "rc_set_",  # Rate control setters
+        "rc_enable_",  # Rate control enable functions
+    ],
     "nan": ["nan_dp_", "nan_dp_post_tx", "nan_dp_delete_peer"],
     "channel_mgmt": ["chm_init", "chm_set_current_channel"],
     "trace": ["trc_init", "trc_onAmpduOp"],
@@ -637,7 +898,22 @@ SYMBOL_PATTERNS = {
     "math_internal": ["__mdiff", "__lshift", "__mprec_tens", "quorem"],
     "character_class": ["__chclass"],
     "camellia": ["camellia_", "camellia_feistel"],
-    "crypto_tables": ["FSb", "FSb2", "FSb3", "FSb4"],
+    "crypto_tables": [
+        "FSb",
+        "FSb2",
+        "FSb3",
+        "FSb4",
+        "Te0",  # AES encryption table
+        "Td0",  # AES decryption table
+        "crc32_table",  # CRC32 lookup table
+        "crc_tab",  # CRC lookup table
+    ],
+    "crypto_hash": [
+        "SHA1Transform",  # SHA1 hash function
+        "MD5Transform",  # MD5 hash function
+        "SHA256",
+        "SHA512",
+    ],
     "event_buffer": ["g_eb_list_desc", "eb_space"],
     "base_node": ["base_node_", "base_node_add_handler"],
     "file_descriptor": ["s_fd_table"],
@@ -799,31 +1075,18 @@ SYMBOL_PATTERNS = {
         "supports_interlaced_inquiry_scan",
         "supports_reading_remote_extended_features",
     ],
-    "bluetooth_ll": [
-        "lld_pdu_",
-        "ld_acl_",
-        "lld_stop_ind_handler",
-        "lld_evt_winsize_change",
-        "config_lld_evt_funcs_reset",
-        "config_lld_funcs_reset",
-        "config_llm_funcs_reset",
-        "llm_set_long_adv_data",
-        "lld_retry_tx_prog",
-        "llc_link_sup_to_ind_handler",
-        "config_llc_funcs_reset",
-        "lld_evt_rxwin_compute",
-        "config_btdm_funcs_reset",
-        "config_ea_funcs_reset",
-        "llc_defalut_state_tab_reset",
-        "config_rwip_funcs_reset",
-        "ke_lmp_rx_flooding_detect",
-    ],
 }
 
 # Demangled patterns: patterns found in demangled C++ names
 DEMANGLED_PATTERNS = {
     "gpio_driver": ["GPIO"],
     "uart_driver": ["UART"],
+    # mdns_lib must come before network_stack to avoid "udp" matching "_udpReadBuffer" in MDNSResponder
+    "mdns_lib": [
+        "MDNSResponder",
+        "MDNSImplementation",
+        "MDNS",
+    ],
     "network_stack": [
         "lwip",
         "tcp",
@@ -836,6 +1099,24 @@ DEMANGLED_PATTERNS = {
         "ethernet",
         "ppp",
         "slip",
+        "UdpContext",  # UDP context class
+        "DhcpServer",  # DHCP server class
+    ],
+    "arduino_core": [
+        "String::",  # Arduino String class
+        "Print::",  # Arduino Print class
+        "HardwareSerial::",  # Serial class
+        "IPAddress::",  # IP address class
+        "EspClass::",  # ESP class
+        "experimental::_SPI",  # Experimental SPI
+    ],
+    "ota": [
+        "UpdaterClass",
+        "Updater::",
+    ],
+    "wifi": [
+        "ESP8266WiFi",
+        "WiFi::",
     ],
     "wifi_stack": ["NetworkInterface"],
     "nimble_bt": [
@@ -854,7 +1135,6 @@ DEMANGLED_PATTERNS = {
     "rtti": ["__type_info", "__class_type_info"],
     "web_server_lib": ["AsyncWebServer", "AsyncWebHandler", "WebServer"],
     "async_tcp": ["AsyncClient", "AsyncServer"],
-    "mdns_lib": ["mdns"],
     "json_lib": [
         "ArduinoJson",
         "JsonDocument",

esphome/analyze_memory/demangle.py

@@ -0,0 +1,182 @@
+"""Symbol demangling utilities for memory analysis.
+
+This module provides functions for demangling C++ symbol names using c++filt.
+"""
+
+from __future__ import annotations
+
+import logging
+import re
+import subprocess
+
+from .toolchain import find_tool
+
+_LOGGER = logging.getLogger(__name__)
+
+# GCC global constructor/destructor prefix annotations
+GCC_PREFIX_ANNOTATIONS = {
+    "_GLOBAL__sub_I_": "global constructor for",
+    "_GLOBAL__sub_D_": "global destructor for",
+}
+
+# GCC optimization suffix pattern (e.g., $isra$0, $part$1, $constprop$2)
+GCC_OPTIMIZATION_SUFFIX_PATTERN = re.compile(r"(\$(?:isra|part|constprop)\$\d+)")
+
+
+def _strip_gcc_annotations(symbol: str) -> tuple[str, str]:
+    """Strip GCC optimization suffixes and prefixes from a symbol.
+
+    Args:
+        symbol: The mangled symbol name
+
+    Returns:
+        Tuple of (stripped_symbol, removed_prefix)
+    """
+    # Remove GCC optimization markers
+    stripped = GCC_OPTIMIZATION_SUFFIX_PATTERN.sub("", symbol)
+
+    # Handle GCC global constructor/initializer prefixes
+    prefix = ""
+    for gcc_prefix in GCC_PREFIX_ANNOTATIONS:
+        if stripped.startswith(gcc_prefix):
+            prefix = gcc_prefix
+            stripped = stripped[len(prefix) :]
+            break
+
+    return stripped, prefix
+
+
+def _restore_symbol_prefix(prefix: str, stripped: str, demangled: str) -> str:
+    """Restore prefix that was removed before demangling.
+
+    Args:
+        prefix: Prefix that was removed (e.g., "_GLOBAL__sub_I_")
+        stripped: Stripped symbol name
+        demangled: Demangled symbol name
+
+    Returns:
+        Demangled name with prefix restored/annotated
+    """
+    if not prefix:
+        return demangled
+
+    # Successfully demangled - add descriptive prefix
+    if demangled != stripped and (annotation := GCC_PREFIX_ANNOTATIONS.get(prefix)):
+        return f"[{annotation}: {demangled}]"
+
+    # Failed to demangle - restore original prefix
+    return prefix + demangled
+
+
+def _restore_symbol_suffix(original: str, demangled: str) -> str:
+    """Restore GCC optimization suffix that was removed before demangling.
+
+    Args:
+        original: Original symbol name with suffix
+        demangled: Demangled symbol name without suffix
+
+    Returns:
+        Demangled name with suffix annotation
+    """
+    if suffix_match := GCC_OPTIMIZATION_SUFFIX_PATTERN.search(original):
+        return f"{demangled} [{suffix_match.group(1)}]"
+    return demangled
+
+
+def batch_demangle(
+    symbols: list[str],
+    cppfilt_path: str | None = None,
+    objdump_path: str | None = None,
+) -> dict[str, str]:
+    """Batch demangle C++ symbol names.
+
+    Args:
+        symbols: List of symbol names to demangle
+        cppfilt_path: Path to c++filt binary (auto-detected if not provided)
+        objdump_path: Path to objdump binary to derive c++filt path from
+
+    Returns:
+        Dictionary mapping original symbol names to demangled names
+    """
+    cache: dict[str, str] = {}
+
+    if not symbols:
+        return cache
+
+    # Find c++filt tool
+    cppfilt_cmd = cppfilt_path or find_tool("c++filt", objdump_path)
+    if not cppfilt_cmd:
+        _LOGGER.warning("Could not find c++filt, symbols will not be demangled")
+        return {s: s for s in symbols}
+
+    _LOGGER.debug("Demangling %d symbols using %s", len(symbols), cppfilt_cmd)
+
+    # Strip GCC optimization suffixes and prefixes before demangling
+    symbols_stripped: list[str] = []
+    symbols_prefixes: list[str] = []
+    for symbol in symbols:
+        stripped, prefix = _strip_gcc_annotations(symbol)
+        symbols_stripped.append(stripped)
+        symbols_prefixes.append(prefix)
+
+    try:
+        result = subprocess.run(
+            [cppfilt_cmd],
+            input="\n".join(symbols_stripped),
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+    except (subprocess.SubprocessError, OSError, UnicodeDecodeError) as e:
+        _LOGGER.warning("Failed to batch demangle symbols: %s", e)
+        return {s: s for s in symbols}
+
+    if result.returncode != 0:
+        _LOGGER.warning(
+            "c++filt exited with code %d: %s",
+            result.returncode,
+            result.stderr[:200] if result.stderr else "(no error output)",
+        )
+        return {s: s for s in symbols}
+
+    # Process demangled output
+    demangled_lines = result.stdout.strip().split("\n")
+
+    # Check for output length mismatch
+    if len(demangled_lines) != len(symbols):
+        _LOGGER.warning(
+            "c++filt output mismatch: expected %d lines, got %d",
+            len(symbols),
+            len(demangled_lines),
+        )
+        return {s: s for s in symbols}
+
+    failed_count = 0
+
+    for original, stripped, prefix, demangled in zip(
+        symbols, symbols_stripped, symbols_prefixes, demangled_lines
+    ):
+        # Add back any prefix that was removed
+        demangled = _restore_symbol_prefix(prefix, stripped, demangled)
+
+        # If we stripped a suffix, add it back to the demangled name for clarity
+        if original != stripped and not prefix:
+            demangled = _restore_symbol_suffix(original, demangled)
+
+        cache[original] = demangled
+
+        # Count symbols that failed to demangle
+        if stripped == demangled and stripped.startswith("_Z"):
+            failed_count += 1
+            if failed_count <= 5:
+                _LOGGER.debug("Failed to demangle: %s", original)
+
+    if failed_count > 0:
+        _LOGGER.debug(
+            "Failed to demangle %d/%d symbols using %s",
+            failed_count,
+            len(symbols),
+            cppfilt_cmd,
+        )
+
+    return cache

esphome/analyze_memory/helpers.py

@@ -94,13 +94,13 @@ def parse_symbol_line(line: str) -> tuple[str, str, int, str] | None:
         return None
 
     # Find section, size, and name
+    # Try each part as a potential section name
     for i, part in enumerate(parts):
-        if not part.startswith("."):
-            continue
-
+        # Skip parts that are clearly flags, addresses, or other metadata
+        # Sections start with '.' (standard ELF) or are known section names (Zephyr)
         section = map_section_name(part)
         if not section:
-            break
+            continue
 
         # Need at least size field after section
         if i + 1 >= len(parts):

esphome/analyze_memory/ram_strings.py

@@ -0,0 +1,493 @@
+"""Analyzer for RAM-stored strings in ESP8266/ESP32 firmware ELF files.
+
+This module identifies strings that are stored in RAM sections (.data, .bss, .rodata)
+rather than in flash sections (.irom0.text, .irom.text), which is important for
+memory-constrained platforms like ESP8266.
+"""
+
+from __future__ import annotations
+
+from collections import defaultdict
+from dataclasses import dataclass
+import logging
+from pathlib import Path
+import re
+import subprocess
+
+from .demangle import batch_demangle
+from .toolchain import find_tool
+
+_LOGGER = logging.getLogger(__name__)
+
+# ESP8266: .rodata is in RAM (DRAM), not flash
+# ESP32: .rodata is in flash, mapped to data bus
+ESP8266_RAM_SECTIONS = frozenset([".data", ".rodata", ".bss"])
+ESP8266_FLASH_SECTIONS = frozenset([".irom0.text", ".irom.text", ".text"])
+
+# ESP32: .rodata is memory-mapped from flash
+ESP32_RAM_SECTIONS = frozenset([".data", ".bss", ".dram0.data", ".dram0.bss"])
+ESP32_FLASH_SECTIONS = frozenset([".text", ".rodata", ".flash.text", ".flash.rodata"])
+
+# nm symbol types for data symbols (D=global data, d=local data, R=rodata, B=bss)
+DATA_SYMBOL_TYPES = frozenset(["D", "d", "R", "r", "B", "b"])
+
+
+@dataclass
+class SectionInfo:
+    """Information about an ELF section."""
+
+    name: str
+    address: int
+    size: int
+
+
+@dataclass
+class RamString:
+    """A string found in RAM."""
+
+    section: str
+    address: int
+    content: str
+
+    @property
+    def size(self) -> int:
+        """Size in bytes including null terminator."""
+        return len(self.content) + 1
+
+
+@dataclass
+class RamSymbol:
+    """A symbol found in RAM."""
+
+    name: str
+    sym_type: str
+    address: int
+    size: int
+    section: str
+    demangled: str = ""  # Demangled name, set after batch demangling
+
+
+class RamStringsAnalyzer:
+    """Analyzes ELF files to find strings stored in RAM."""
+
+    def __init__(
+        self,
+        elf_path: str,
+        objdump_path: str | None = None,
+        min_length: int = 8,
+        platform: str = "esp32",
+    ) -> None:
+        """Initialize the RAM strings analyzer.
+
+        Args:
+            elf_path: Path to the ELF file to analyze
+            objdump_path: Path to objdump binary (used to find other tools)
+            min_length: Minimum string length to report (default: 8)
+            platform: Platform name ("esp8266", "esp32", etc.) for section mapping
+        """
+        self.elf_path = Path(elf_path)
+        if not self.elf_path.exists():
+            raise FileNotFoundError(f"ELF file not found: {elf_path}")
+
+        self.objdump_path = objdump_path
+        self.min_length = min_length
+        self.platform = platform
+
+        # Set RAM/flash sections based on platform
+        if self.platform == "esp8266":
+            self.ram_sections = ESP8266_RAM_SECTIONS
+            self.flash_sections = ESP8266_FLASH_SECTIONS
+        else:
+            # ESP32 and other platforms
+            self.ram_sections = ESP32_RAM_SECTIONS
+            self.flash_sections = ESP32_FLASH_SECTIONS
+
+        self.sections: dict[str, SectionInfo] = {}
+        self.ram_strings: list[RamString] = []
+        self.ram_symbols: list[RamSymbol] = []
+
+    def _run_command(self, cmd: list[str]) -> str:
+        """Run a command and return its output."""
+        try:
+            result = subprocess.run(cmd, capture_output=True, text=True, check=True)
+            return result.stdout
+        except subprocess.CalledProcessError as e:
+            _LOGGER.debug("Command failed: %s - %s", " ".join(cmd), e.stderr)
+            raise
+        except FileNotFoundError:
+            _LOGGER.warning("Command not found: %s", cmd[0])
+            raise
+
+    def analyze(self) -> None:
+        """Perform the full RAM analysis."""
+        self._parse_sections()
+        self._extract_strings()
+        self._analyze_symbols()
+        self._demangle_symbols()
+
+    def _parse_sections(self) -> None:
+        """Parse section headers from ELF file."""
+        objdump = find_tool("objdump", self.objdump_path)
+        if not objdump:
+            _LOGGER.error("Could not find objdump command")
+            return
+
+        try:
+            output = self._run_command([objdump, "-h", str(self.elf_path)])
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            return
+
+        # Parse section headers
+        # Format: Idx Name          Size      VMA       LMA       File off  Algn
+        section_pattern = re.compile(
+            r"^\s*\d+\s+(\S+)\s+([0-9a-fA-F]+)\s+([0-9a-fA-F]+)"
+        )
+
+        for line in output.split("\n"):
+            if match := section_pattern.match(line):
+                name = match.group(1)
+                size = int(match.group(2), 16)
+                vma = int(match.group(3), 16)
+                self.sections[name] = SectionInfo(name, vma, size)
+
+    def _extract_strings(self) -> None:
+        """Extract strings from RAM sections."""
+        objdump = find_tool("objdump", self.objdump_path)
+        if not objdump:
+            return
+
+        for section_name in self.ram_sections:
+            if section_name not in self.sections:
+                continue
+
+            try:
+                output = self._run_command(
+                    [objdump, "-s", "-j", section_name, str(self.elf_path)]
+                )
+            except subprocess.CalledProcessError:
+                # Section may exist but have no content (e.g., .bss)
+                continue
+            except FileNotFoundError:
+                continue
+
+            strings = self._parse_hex_dump(output, section_name)
+            self.ram_strings.extend(strings)
+
+    def _parse_hex_dump(self, output: str, section_name: str) -> list[RamString]:
+        """Parse hex dump output to extract strings.
+
+        Args:
+            output: Output from objdump -s
+            section_name: Name of the section being parsed
+
+        Returns:
+            List of RamString objects
+        """
+        strings: list[RamString] = []
+        current_string = bytearray()
+        string_start_addr = 0
+
+        for line in output.split("\n"):
+            # Lines look like: " 3ffef8a0 00000000 00000000 00000000 00000000  ................"
+            match = re.match(r"^\s+([0-9a-fA-F]+)\s+((?:[0-9a-fA-F]{2,8}\s*)+)", line)
+            if not match:
+                continue
+
+            addr = int(match.group(1), 16)
+            hex_data = match.group(2).strip()
+
+            # Convert hex to bytes
+            hex_bytes = hex_data.split()
+            byte_offset = 0
+            for hex_chunk in hex_bytes:
+                # Handle both byte-by-byte and word formats
+                for i in range(0, len(hex_chunk), 2):
+                    byte_val = int(hex_chunk[i : i + 2], 16)
+                    if 0x20 <= byte_val <= 0x7E:  # Printable ASCII
+                        if not current_string:
+                            string_start_addr = addr + byte_offset
+                        current_string.append(byte_val)
+                    else:
+                        if byte_val == 0 and len(current_string) >= self.min_length:
+                            # Found null terminator
+                            strings.append(
+                                RamString(
+                                    section=section_name,
+                                    address=string_start_addr,
+                                    content=current_string.decode(
+                                        "ascii", errors="ignore"
+                                    ),
+                                )
+                            )
+                        current_string = bytearray()
+                    byte_offset += 1
+
+        return strings
+
+    def _analyze_symbols(self) -> None:
+        """Analyze symbols in RAM sections."""
+        nm = find_tool("nm", self.objdump_path)
+        if not nm:
+            return
+
+        try:
+            output = self._run_command([nm, "-S", "--size-sort", str(self.elf_path)])
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            return
+
+        for line in output.split("\n"):
+            parts = line.split()
+            if len(parts) < 4:
+                continue
+
+            try:
+                addr = int(parts[0], 16)
+                size = int(parts[1], 16) if parts[1] != "?" else 0
+            except ValueError:
+                continue
+
+            sym_type = parts[2]
+            name = " ".join(parts[3:])
+
+            # Filter for data symbols
+            if sym_type not in DATA_SYMBOL_TYPES:
+                continue
+
+            # Check if symbol is in a RAM section
+            for section_name in self.ram_sections:
+                if section_name not in self.sections:
+                    continue
+
+                section = self.sections[section_name]
+                if section.address <= addr < section.address + section.size:
+                    self.ram_symbols.append(
+                        RamSymbol(
+                            name=name,
+                            sym_type=sym_type,
+                            address=addr,
+                            size=size,
+                            section=section_name,
+                        )
+                    )
+                    break
+
+    def _demangle_symbols(self) -> None:
+        """Batch demangle all RAM symbol names."""
+        if not self.ram_symbols:
+            return
+
+        # Collect all symbol names and demangle them
+        symbol_names = [s.name for s in self.ram_symbols]
+        demangle_cache = batch_demangle(symbol_names, objdump_path=self.objdump_path)
+
+        # Assign demangled names to symbols
+        for symbol in self.ram_symbols:
+            symbol.demangled = demangle_cache.get(symbol.name, symbol.name)
+
+    def _get_sections_size(self, section_names: frozenset[str]) -> int:
+        """Get total size of specified sections."""
+        return sum(
+            section.size
+            for name, section in self.sections.items()
+            if name in section_names
+        )
+
+    def get_total_ram_usage(self) -> int:
+        """Get total RAM usage from RAM sections."""
+        return self._get_sections_size(self.ram_sections)
+
+    def get_total_flash_usage(self) -> int:
+        """Get total flash usage from flash sections."""
+        return self._get_sections_size(self.flash_sections)
+
+    def get_total_string_bytes(self) -> int:
+        """Get total bytes used by strings in RAM."""
+        return sum(s.size for s in self.ram_strings)
+
+    def get_repeated_strings(self) -> list[tuple[str, int]]:
+        """Find strings that appear multiple times.
+
+        Returns:
+            List of (string, count) tuples sorted by potential savings
+        """
+        string_counts: dict[str, int] = defaultdict(int)
+        for ram_string in self.ram_strings:
+            string_counts[ram_string.content] += 1
+
+        return sorted(
+            [(s, c) for s, c in string_counts.items() if c > 1],
+            key=lambda x: x[1] * (len(x[0]) + 1),
+            reverse=True,
+        )
+
+    def get_long_strings(self, min_len: int = 20) -> list[RamString]:
+        """Get strings longer than the specified length.
+
+        Args:
+            min_len: Minimum string length
+
+        Returns:
+            List of RamString objects sorted by length
+        """
+        return sorted(
+            [s for s in self.ram_strings if len(s.content) >= min_len],
+            key=lambda x: len(x.content),
+            reverse=True,
+        )
+
+    def get_largest_symbols(self, min_size: int = 100) -> list[RamSymbol]:
+        """Get RAM symbols larger than the specified size.
+
+        Args:
+            min_size: Minimum symbol size in bytes
+
+        Returns:
+            List of RamSymbol objects sorted by size
+        """
+        return sorted(
+            [s for s in self.ram_symbols if s.size >= min_size],
+            key=lambda x: x.size,
+            reverse=True,
+        )
+
+    def generate_report(self, show_all_sections: bool = False) -> str:
+        """Generate a formatted RAM strings analysis report.
+
+        Args:
+            show_all_sections: If True, show all sections, not just RAM
+
+        Returns:
+            Formatted report string
+        """
+        lines: list[str] = []
+        table_width = 80
+
+        lines.append("=" * table_width)
+        lines.append(
+            f"RAM Strings Analysis ({self.platform.upper()})".center(table_width)
+        )
+        lines.append("=" * table_width)
+        lines.append("")
+
+        # Section Analysis
+        lines.append("SECTION ANALYSIS")
+        lines.append("-" * table_width)
+        lines.append(f"{'Section':<20} {'Address':<12} {'Size':<12} {'Location'}")
+        lines.append("-" * table_width)
+
+        total_ram_usage = 0
+        total_flash_usage = 0
+
+        for name, section in sorted(self.sections.items(), key=lambda x: x[1].address):
+            if name in self.ram_sections:
+                location = "RAM"
+                total_ram_usage += section.size
+            elif name in self.flash_sections:
+                location = "FLASH"
+                total_flash_usage += section.size
+            else:
+                location = "OTHER"
+
+            if show_all_sections or name in self.ram_sections:
+                lines.append(
+                    f"{name:<20} 0x{section.address:08x}   {section.size:>8} B   {location}"
+                )
+
+        lines.append("-" * table_width)
+        lines.append(f"Total RAM sections size: {total_ram_usage:,} bytes")
+        lines.append(f"Total Flash sections size: {total_flash_usage:,} bytes")
+
+        # Strings in RAM
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("STRINGS IN RAM SECTIONS")
+        lines.append("=" * table_width)
+        lines.append(
+            "Note: .bss sections contain uninitialized data (no strings to extract)"
+        )
+
+        # Group strings by section
+        strings_by_section: dict[str, list[RamString]] = defaultdict(list)
+        for ram_string in self.ram_strings:
+            strings_by_section[ram_string.section].append(ram_string)
+
+        for section_name in sorted(strings_by_section.keys()):
+            section_strings = strings_by_section[section_name]
+            lines.append(f"\nSection: {section_name}")
+            lines.append("-" * 40)
+            for ram_string in sorted(section_strings, key=lambda x: x.address):
+                clean_string = ram_string.content[:100] + (
+                    "..." if len(ram_string.content) > 100 else ""
+                )
+                lines.append(
+                    f'  0x{ram_string.address:08x}: "{clean_string}" (len={len(ram_string.content)})'
+                )
+
+        # Large RAM symbols
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("LARGE DATA SYMBOLS IN RAM (>= 50 bytes)")
+        lines.append("=" * table_width)
+
+        largest_symbols = self.get_largest_symbols(50)
+        lines.append(f"\n{'Symbol':<50} {'Type':<6} {'Size':<10} {'Section'}")
+        lines.append("-" * table_width)
+
+        for symbol in largest_symbols:
+            # Use demangled name if available, otherwise raw name
+            display_name = symbol.demangled or symbol.name
+            name_display = display_name[:49] if len(display_name) > 49 else display_name
+            lines.append(
+                f"{name_display:<50} {symbol.sym_type:<6} {symbol.size:>8} B  {symbol.section}"
+            )
+
+        # Summary
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("SUMMARY")
+        lines.append("=" * table_width)
+        lines.append(f"Total strings found in RAM: {len(self.ram_strings)}")
+        total_string_bytes = self.get_total_string_bytes()
+        lines.append(f"Total bytes used by strings: {total_string_bytes:,}")
+
+        # Optimization targets
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("POTENTIAL OPTIMIZATION TARGETS")
+        lines.append("=" * table_width)
+
+        # Repeated strings
+        repeated = self.get_repeated_strings()[:10]
+        if repeated:
+            lines.append("\nRepeated strings (could be deduplicated):")
+            for string, count in repeated:
+                savings = (count - 1) * (len(string) + 1)
+                clean_string = string[:50] + ("..." if len(string) > 50 else "")
+                lines.append(
+                    f'  "{clean_string}" - appears {count} times (potential savings: {savings} bytes)'
+                )
+
+        # Long strings - platform-specific advice
+        long_strings = self.get_long_strings(20)[:10]
+        if long_strings:
+            if self.platform == "esp8266":
+                lines.append(
+                    "\nLong strings that could be moved to PROGMEM (>= 20 chars):"
+                )
+            else:
+                # ESP32: strings in DRAM are typically there for a reason
+                # (interrupt handlers, pre-flash-init code, etc.)
+                lines.append("\nLong strings in DRAM (>= 20 chars):")
+                lines.append(
+                    "Note: ESP32 DRAM strings may be required for interrupt/early-boot contexts"
+                )
+            for ram_string in long_strings:
+                clean_string = ram_string.content[:60] + (
+                    "..." if len(ram_string.content) > 60 else ""
+                )
+                lines.append(
+                    f'  {ram_string.section} @ 0x{ram_string.address:08x}: "{clean_string}" ({len(ram_string.content)} bytes)'
+                )
+
+        lines.append("")
+        return "\n".join(lines)

esphome/analyze_memory/toolchain.py

@@ -0,0 +1,173 @@
+"""Toolchain utilities for memory analysis."""
+
+from __future__ import annotations
+
+import logging
+import os
+from pathlib import Path
+import subprocess
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+_LOGGER = logging.getLogger(__name__)
+
+# Platform-specific toolchain prefixes
+TOOLCHAIN_PREFIXES = [
+    "xtensa-lx106-elf-",  # ESP8266
+    "xtensa-esp32-elf-",  # ESP32
+    "xtensa-esp-elf-",  # ESP32 (newer IDF)
+    "arm-zephyr-eabi-",  # nRF52/Zephyr SDK
+    "arm-none-eabi-",  # Generic ARM (RP2040, etc.)
+    "",  # System default (no prefix)
+]
+
+
+def _find_in_platformio_packages(tool_name: str) -> str | None:
+    """Search for a tool in PlatformIO package directories.
+
+    This handles cases like Zephyr SDK where tools are installed in nested
+    directories that aren't in PATH.
+
+    Args:
+        tool_name: Name of the tool (e.g., "readelf", "objdump")
+
+    Returns:
+        Full path to the tool or None if not found
+    """
+    # Get PlatformIO packages directory
+    platformio_home = Path(os.path.expanduser("~/.platformio/packages"))
+    if not platformio_home.exists():
+        return None
+
+    # Search patterns for toolchains that might contain the tool
+    # Order matters - more specific patterns first
+    search_patterns = [
+        # Zephyr SDK deeply nested structure (4 levels)
+        # e.g., toolchain-gccarmnoneeabi/zephyr-sdk-0.17.4/arm-zephyr-eabi/bin/arm-zephyr-eabi-objdump
+        f"toolchain-*/*/*/bin/*-{tool_name}",
+        # Zephyr SDK nested structure (3 levels)
+        f"toolchain-*/*/bin/*-{tool_name}",
+        f"toolchain-*/bin/*-{tool_name}",
+        # Standard PlatformIO toolchain structure
+        f"toolchain-*/bin/*{tool_name}",
+    ]
+
+    for pattern in search_patterns:
+        matches = list(platformio_home.glob(pattern))
+        if matches:
+            # Sort to get consistent results, prefer arm-zephyr-eabi over arm-none-eabi
+            matches.sort(key=lambda p: ("zephyr" not in str(p), str(p)))
+            tool_path = str(matches[0])
+            _LOGGER.debug("Found %s in PlatformIO packages: %s", tool_name, tool_path)
+            return tool_path
+
+    return None
+
+
+def resolve_tool_path(
+    tool_name: str,
+    derived_path: str | None,
+    objdump_path: str | None = None,
+) -> str | None:
+    """Resolve a tool path, falling back to find_tool if derived path doesn't exist.
+
+    Args:
+        tool_name: Name of the tool (e.g., "objdump", "readelf")
+        derived_path: Path derived from idedata (may not exist for some platforms)
+        objdump_path: Path to objdump binary to derive other tool paths from
+
+    Returns:
+        Resolved path to the tool, or the original derived_path if it exists
+    """
+    if derived_path and not Path(derived_path).exists():
+        found = find_tool(tool_name, objdump_path)
+        if found:
+            _LOGGER.debug(
+                "Derived %s path %s not found, using %s",
+                tool_name,
+                derived_path,
+                found,
+            )
+            return found
+    return derived_path
+
+
+def find_tool(
+    tool_name: str,
+    objdump_path: str | None = None,
+) -> str | None:
+    """Find a toolchain tool by name.
+
+    First tries to derive the tool path from objdump_path (if provided),
+    then searches PlatformIO package directories (for cross-compile toolchains),
+    and finally falls back to searching for platform-specific tools in PATH.
+
+    Args:
+        tool_name: Name of the tool (e.g., "objdump", "nm", "c++filt")
+        objdump_path: Path to objdump binary to derive other tool paths from
+
+    Returns:
+        Path to the tool or None if not found
+    """
+    # Try to derive from objdump path first (most reliable)
+    if objdump_path and objdump_path != "objdump":
+        objdump_file = Path(objdump_path)
+        # Replace just the filename portion, preserving any prefix (e.g., xtensa-esp32-elf-)
+        new_name = objdump_file.name.replace("objdump", tool_name)
+        potential_path = str(objdump_file.with_name(new_name))
+        if Path(potential_path).exists():
+            _LOGGER.debug("Found %s at: %s", tool_name, potential_path)
+            return potential_path
+
+    # Search in PlatformIO packages directory first (handles Zephyr SDK, etc.)
+    # This must come before PATH search because system tools (e.g., /usr/bin/objdump)
+    # are for the host architecture, not the target (ARM, Xtensa, etc.)
+    if found := _find_in_platformio_packages(tool_name):
+        return found
+
+    # Try platform-specific tools in PATH (fallback for when tools are installed globally)
+    for prefix in TOOLCHAIN_PREFIXES:
+        cmd = f"{prefix}{tool_name}"
+        try:
+            subprocess.run([cmd, "--version"], capture_output=True, check=True)
+            _LOGGER.debug("Found %s: %s", tool_name, cmd)
+            return cmd
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            continue
+
+    _LOGGER.warning("Could not find %s tool", tool_name)
+    return None
+
+
+def run_tool(
+    cmd: Sequence[str],
+    timeout: int = 30,
+) -> subprocess.CompletedProcess[str] | None:
+    """Run a toolchain command and return the result.
+
+    Args:
+        cmd: Command and arguments to run
+        timeout: Timeout in seconds
+
+    Returns:
+        CompletedProcess on success, None on failure
+    """
+    try:
+        return subprocess.run(
+            cmd,
+            capture_output=True,
+            text=True,
+            timeout=timeout,
+            check=False,
+        )
+    except subprocess.TimeoutExpired:
+        _LOGGER.warning("Command timed out: %s", " ".join(cmd))
+        return None
+    except FileNotFoundError:
+        _LOGGER.warning("Command not found: %s", cmd[0])
+        return None
+    except OSError as e:
+        _LOGGER.warning("Failed to run command %s: %s", cmd[0], e)
+        return None

esphome/automation.py

@@ -15,8 +15,13 @@ from esphome.const import (
     CONF_TYPE_ID,
     CONF_UPDATE_INTERVAL,
 )
-from esphome.core import ID
-from esphome.cpp_generator import MockObj, MockObjClass, TemplateArgsType
+from esphome.core import ID, Lambda
+from esphome.cpp_generator import (
+    LambdaExpression,
+    MockObj,
+    MockObjClass,
+    TemplateArgsType,
+)
 from esphome.schema_extractors import SCHEMA_EXTRACT, schema_extractor
 from esphome.types import ConfigType
 from esphome.util import Registry
@@ -87,6 +92,7 @@ def validate_potentially_or_condition(value):
 
 DelayAction = cg.esphome_ns.class_("DelayAction", Action, cg.Component)
 LambdaAction = cg.esphome_ns.class_("LambdaAction", Action)
+StatelessLambdaAction = cg.esphome_ns.class_("StatelessLambdaAction", Action)
 IfAction = cg.esphome_ns.class_("IfAction", Action)
 WhileAction = cg.esphome_ns.class_("WhileAction", Action)
 RepeatAction = cg.esphome_ns.class_("RepeatAction", Action)
@@ -97,9 +103,40 @@ ResumeComponentAction = cg.esphome_ns.class_("ResumeComponentAction", Action)
 Automation = cg.esphome_ns.class_("Automation")
 
 LambdaCondition = cg.esphome_ns.class_("LambdaCondition", Condition)
+StatelessLambdaCondition = cg.esphome_ns.class_("StatelessLambdaCondition", Condition)
 ForCondition = cg.esphome_ns.class_("ForCondition", Condition, cg.Component)
 
 
+def new_lambda_pvariable(
+    id_obj: ID,
+    lambda_expr: LambdaExpression,
+    stateless_class: MockObjClass,
+    template_arg: cg.TemplateArguments | None = None,
+) -> MockObj:
+    """Create Pvariable for lambda, using stateless class if applicable.
+
+    Combines ID selection and Pvariable creation in one call. For stateless
+    lambdas (empty capture), uses function pointer instead of std::function.
+
+    Args:
+        id_obj: The ID object (action_id, condition_id, or filter_id)
+        lambda_expr: The lambda expression object
+        stateless_class: The stateless class to use for stateless lambdas
+        template_arg: Optional template arguments (for actions/conditions)
+
+    Returns:
+        The created Pvariable
+    """
+    # For stateless lambdas, use function pointer instead of std::function
+    if lambda_expr.capture == "":
+        id_obj = id_obj.copy()
+        id_obj.type = stateless_class
+
+    if template_arg is not None:
+        return cg.new_Pvariable(id_obj, template_arg, lambda_expr)
+    return cg.new_Pvariable(id_obj, lambda_expr)
+
+
 def validate_automation(extra_schema=None, extra_validators=None, single=False):
     if extra_schema is None:
         extra_schema = {}
@@ -145,7 +182,7 @@ def validate_automation(extra_schema=None, extra_validators=None, single=False):
             value = cv.Schema([extra_validators])(value)
         if single:
             if len(value) != 1:
-                raise cv.Invalid("Cannot have more than 1 automation for templates")
+                raise cv.Invalid("This trigger allows only a single automation")
             return value[0]
         return value
 
@@ -240,7 +277,9 @@ async def lambda_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     lambda_ = await cg.process_lambda(config, args, return_type=bool)
-    return cg.new_Pvariable(condition_id, template_arg, lambda_)
+    return new_lambda_pvariable(
+        condition_id, lambda_, StatelessLambdaCondition, template_arg
+    )
 
 
 @register_condition(
@@ -271,6 +310,30 @@ async def for_condition_to_code(
     return var
 
 
+@register_condition(
+    "component.is_idle",
+    LambdaCondition,
+    maybe_simple_id(
+        {
+            cv.Required(CONF_ID): cv.use_id(cg.Component),
+        }
+    ),
+)
+async def component_is_idle_condition_to_code(
+    config: ConfigType,
+    condition_id: ID,
+    template_arg: cg.TemplateArguments,
+    args: TemplateArgsType,
+) -> MockObj:
+    comp = await cg.get_variable(config[CONF_ID])
+    lambda_ = await cg.process_lambda(
+        Lambda(f"return {comp}->is_idle();"), args, return_type=bool
+    )
+    return new_lambda_pvariable(
+        condition_id, lambda_, StatelessLambdaCondition, template_arg
+    )
+
+
 @register_action(
     "delay", DelayAction, cv.templatable(cv.positive_time_period_milliseconds)
 )
@@ -406,7 +469,7 @@ async def lambda_action_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     lambda_ = await cg.process_lambda(config, args, return_type=cg.void)
-    return cg.new_Pvariable(action_id, template_arg, lambda_)
+    return new_lambda_pvariable(action_id, lambda_, StatelessLambdaAction, template_arg)
 
 
 @register_action(

esphome/build_gen/espidf.py

@@ -0,0 +1,139 @@
+"""ESP-IDF direct build generator for ESPHome."""
+
+import json
+from pathlib import Path
+
+from esphome.components.esp32 import get_esp32_variant
+from esphome.core import CORE
+from esphome.helpers import mkdir_p, write_file_if_changed
+
+
+def get_available_components() -> list[str] | None:
+    """Get list of available ESP-IDF components from project_description.json.
+
+    Returns only internal ESP-IDF components, excluding external/managed
+    components (from idf_component.yml).
+    """
+    project_desc = Path(CORE.build_path) / "build" / "project_description.json"
+    if not project_desc.exists():
+        return None
+
+    try:
+        with open(project_desc, encoding="utf-8") as f:
+            data = json.load(f)
+
+        component_info = data.get("build_component_info", {})
+
+        result = []
+        for name, info in component_info.items():
+            # Exclude our own src component
+            if name == "src":
+                continue
+
+            # Exclude managed/external components
+            comp_dir = info.get("dir", "")
+            if "managed_components" in comp_dir:
+                continue
+
+            result.append(name)
+
+        return result
+    except (json.JSONDecodeError, OSError):
+        return None
+
+
+def has_discovered_components() -> bool:
+    """Check if we have discovered components from a previous configure."""
+    return get_available_components() is not None
+
+
+def get_project_cmakelists() -> str:
+    """Generate the top-level CMakeLists.txt for ESP-IDF project."""
+    # Get IDF target from ESP32 variant (e.g., ESP32S3 -> esp32s3)
+    variant = get_esp32_variant()
+    idf_target = variant.lower().replace("-", "")
+
+    return f"""\
+# Auto-generated by ESPHome
+cmake_minimum_required(VERSION 3.16)
+
+set(IDF_TARGET {idf_target})
+set(EXTRA_COMPONENT_DIRS ${{CMAKE_SOURCE_DIR}}/src)
+
+include($ENV{{IDF_PATH}}/tools/cmake/project.cmake)
+project({CORE.name})
+"""
+
+
+def get_component_cmakelists(minimal: bool = False) -> str:
+    """Generate the main component CMakeLists.txt."""
+    idf_requires = [] if minimal else (get_available_components() or [])
+    requires_str = " ".join(idf_requires)
+
+    # Extract compile definitions from build flags (-DXXX -> XXX)
+    compile_defs = [flag[2:] for flag in CORE.build_flags if flag.startswith("-D")]
+    compile_defs_str = "\n    ".join(compile_defs) if compile_defs else ""
+
+    # Extract compile options (-W flags, excluding linker flags)
+    compile_opts = [
+        flag
+        for flag in CORE.build_flags
+        if flag.startswith("-W") and not flag.startswith("-Wl,")
+    ]
+    compile_opts_str = "\n    ".join(compile_opts) if compile_opts else ""
+
+    # Extract linker options (-Wl, flags)
+    link_opts = [flag for flag in CORE.build_flags if flag.startswith("-Wl,")]
+    link_opts_str = "\n    ".join(link_opts) if link_opts else ""
+
+    return f"""\
+# Auto-generated by ESPHome
+file(GLOB_RECURSE app_sources
+    "${{CMAKE_CURRENT_SOURCE_DIR}}/*.cpp"
+    "${{CMAKE_CURRENT_SOURCE_DIR}}/*.c"
+    "${{CMAKE_CURRENT_SOURCE_DIR}}/esphome/*.cpp"
+    "${{CMAKE_CURRENT_SOURCE_DIR}}/esphome/*.c"
+)
+
+idf_component_register(
+    SRCS ${{app_sources}}
+    INCLUDE_DIRS "." "esphome"
+    REQUIRES {requires_str}
+)
+
+# Apply C++ standard
+target_compile_features(${{COMPONENT_LIB}} PUBLIC cxx_std_20)
+
+# ESPHome compile definitions
+target_compile_definitions(${{COMPONENT_LIB}} PUBLIC
+    {compile_defs_str}
+)
+
+# ESPHome compile options
+target_compile_options(${{COMPONENT_LIB}} PUBLIC
+    {compile_opts_str}
+)
+
+# ESPHome linker options
+target_link_options(${{COMPONENT_LIB}} PUBLIC
+    {link_opts_str}
+)
+"""
+
+
+def write_project(minimal: bool = False) -> None:
+    """Write ESP-IDF project files."""
+    mkdir_p(CORE.build_path)
+    mkdir_p(CORE.relative_src_path())
+
+    # Write top-level CMakeLists.txt
+    write_file_if_changed(
+        CORE.relative_build_path("CMakeLists.txt"),
+        get_project_cmakelists(),
+    )
+
+    # Write component CMakeLists.txt in src/
+    write_file_if_changed(
+        CORE.relative_src_path("CMakeLists.txt"),
+        get_component_cmakelists(minimal=minimal),
+    )

esphome/codegen.py

@@ -62,12 +62,14 @@ from esphome.cpp_types import (  # noqa: F401
     EntityBase,
     EntityCategory,
     ESPTime,
+    FixedVector,
     GPIOPin,
     InternalGPIOPin,
     JsonObject,
     JsonObjectConst,
     Parented,
     PollingComponent,
+    StringRef,
     arduino_json_ns,
     bool_,
     const_char_ptr,

esphome/components/a01nyub/a01nyub.cpp

@@ -30,7 +30,9 @@ void A01nyubComponent::check_buffer_() {
       ESP_LOGV(TAG, "Distance from sensor: %f mm, %f m", distance, meters);
       this->publish_state(meters);
     } else {
-      ESP_LOGW(TAG, "Invalid data read from sensor: %s", format_hex_pretty(this->buffer_).c_str());
+      char hex_buf[format_hex_pretty_size(4)];
+      ESP_LOGW(TAG, "Invalid data read from sensor: %s",
+               format_hex_pretty_to(hex_buf, this->buffer_.data(), this->buffer_.size()));
     }
   } else {
     ESP_LOGW(TAG, "checksum failed: %02x != %02x", checksum, this->buffer_[3]);

esphome/components/a02yyuw/a02yyuw.cpp

@@ -29,7 +29,9 @@ void A02yyuwComponent::check_buffer_() {
       ESP_LOGV(TAG, "Distance from sensor: %f mm", distance);
       this->publish_state(distance);
     } else {
-      ESP_LOGW(TAG, "Invalid data read from sensor: %s", format_hex_pretty(this->buffer_).c_str());
+      char hex_buf[format_hex_pretty_size(4)];
+      ESP_LOGW(TAG, "Invalid data read from sensor: %s",
+               format_hex_pretty_to(hex_buf, this->buffer_.data(), this->buffer_.size()));
     }
   } else {
     ESP_LOGW(TAG, "checksum failed: %02x != %02x", checksum, this->buffer_[3]);

esphome/components/absolute_humidity/absolute_humidity.cpp

@@ -45,8 +45,6 @@ void AbsoluteHumidityComponent::dump_config() {
                 this->temperature_sensor_->get_name().c_str(), this->humidity_sensor_->get_name().c_str());
 }
 
-float AbsoluteHumidityComponent::get_setup_priority() const { return setup_priority::DATA; }
-
 void AbsoluteHumidityComponent::loop() {
   if (!this->next_update_) {
     return;
@@ -87,16 +85,19 @@ void AbsoluteHumidityComponent::loop() {
       break;
     default:
       this->publish_state(NAN);
-      this->status_set_error("Invalid saturation vapor pressure equation selection!");
+      this->status_set_error(LOG_STR("Invalid saturation vapor pressure equation selection!"));
       return;
   }
-  ESP_LOGD(TAG, "Saturation vapor pressure %f kPa", es);
 
   // Calculate absolute humidity
   const float absolute_humidity = vapor_density(es, hr, temperature_k);
 
+  ESP_LOGD(TAG,
+           "Saturation vapor pressure %f kPa\n"
+           "Publishing absolute humidity %f g/m³",
+           es, absolute_humidity);
+
   // Publish absolute humidity
-  ESP_LOGD(TAG, "Publishing absolute humidity %f g/m³", absolute_humidity);
   this->status_clear_warning();
   this->publish_state(absolute_humidity);
 }
@@ -163,7 +164,7 @@ float AbsoluteHumidityComponent::es_wobus(float t) {
 }
 
 // From https://www.environmentalbiophysics.org/chalk-talk-how-to-calculate-absolute-humidity/
-// H/T to https://esphome.io/cookbook/bme280_environment.html
+// H/T to https://esphome.io/cookbook/bme280_environment/
 // H/T to https://carnotcycle.wordpress.com/2012/08/04/how-to-convert-relative-humidity-to-absolute-humidity/
 float AbsoluteHumidityComponent::vapor_density(float es, float hr, float ta) {
   // es = saturated vapor pressure (kPa)

esphome/components/absolute_humidity/absolute_humidity.h

@@ -24,7 +24,6 @@ class AbsoluteHumidityComponent : public sensor::Sensor, public Component {
 
   void setup() override;
   void dump_config() override;
-  float get_setup_priority() const override;
   void loop() override;
 
  protected:

esphome/components/ac_dimmer/ac_dimmer.cpp

@@ -1,5 +1,3 @@
-#ifdef USE_ARDUINO
-
 #include "ac_dimmer.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
@@ -9,12 +7,12 @@
 #ifdef USE_ESP8266
 #include <core_esp8266_waveform.h>
 #endif
-#ifdef USE_ESP32_FRAMEWORK_ARDUINO
-#include <esp32-hal-timer.h>
+
+#ifdef USE_ESP32
+#include "hw_timer_esp_idf.h"
 #endif
 
-namespace esphome {
-namespace ac_dimmer {
+namespace esphome::ac_dimmer {
 
 static const char *const TAG = "ac_dimmer";
 
@@ -27,7 +25,14 @@ static AcDimmerDataStore *all_dimmers[32];  // NOLINT(cppcoreguidelines-avoid-no
 /// However other factors like gate driver propagation time
 /// are also considered and a really low value is not important
 /// See also: https://github.com/esphome/issues/issues/1632
-static const uint32_t GATE_ENABLE_TIME = 50;
+static constexpr uint32_t GATE_ENABLE_TIME = 50;
+
+#ifdef USE_ESP32
+/// Timer frequency in Hz (1 MHz = 1µs resolution)
+static constexpr uint32_t TIMER_FREQUENCY_HZ = 1000000;
+/// Timer interrupt interval in microseconds
+static constexpr uint64_t TIMER_INTERVAL_US = 50;
+#endif
 
 /// Function called from timer interrupt
 /// Input is current time in microseconds (micros())
@@ -154,7 +159,7 @@ void IRAM_ATTR HOT AcDimmerDataStore::s_gpio_intr(AcDimmerDataStore *store) {
 #ifdef USE_ESP32
 // ESP32 implementation, uses basically the same code but needs to wrap
 // timer_interrupt() function to auto-reschedule
-static hw_timer_t *dimmer_timer = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
+static HWTimer *dimmer_timer = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 void IRAM_ATTR HOT AcDimmerDataStore::s_timer_intr() { timer_interrupt(); }
 #endif
 
@@ -194,15 +199,15 @@ void AcDimmer::setup() {
   setTimer1Callback(&timer_interrupt);
 #endif
 #ifdef USE_ESP32
-  // timer frequency of 1mhz
-  dimmer_timer = timerBegin(1000000);
-  timerAttachInterrupt(dimmer_timer, &AcDimmerDataStore::s_timer_intr);
+  dimmer_timer = timer_begin(TIMER_FREQUENCY_HZ);
+  timer_attach_interrupt(dimmer_timer, &AcDimmerDataStore::s_timer_intr);
   // For ESP32, we can't use dynamic interval calculation because the timerX functions
   // are not callable from ISR (placed in flash storage).
   // Here we just use an interrupt firing every 50 µs.
-  timerAlarm(dimmer_timer, 50, true, 0);
+  timer_alarm(dimmer_timer, TIMER_INTERVAL_US, true, 0);
 #endif
 }
+
 void AcDimmer::write_state(float state) {
   state = std::acos(1 - (2 * state)) / std::numbers::pi;  // RMS power compensation
   auto new_value = static_cast<uint16_t>(roundf(state * 65535));
@@ -210,14 +215,15 @@ void AcDimmer::write_state(float state) {
     this->store_.init_cycle = this->init_with_half_cycle_;
   this->store_.value = new_value;
 }
+
 void AcDimmer::dump_config() {
-  ESP_LOGCONFIG(TAG, "AcDimmer:");
-  LOG_PIN("  Output Pin: ", this->gate_pin_);
-  LOG_PIN("  Zero-Cross Pin: ", this->zero_cross_pin_);
   ESP_LOGCONFIG(TAG,
+                "AcDimmer:\n"
                 "   Min Power: %.1f%%\n"
                 "   Init with half cycle: %s",
                 this->store_.min_power / 10.0f, YESNO(this->init_with_half_cycle_));
+  LOG_PIN("  Output Pin: ", this->gate_pin_);
+  LOG_PIN("  Zero-Cross Pin: ", this->zero_cross_pin_);
   if (method_ == DIM_METHOD_LEADING_PULSE) {
     ESP_LOGCONFIG(TAG, "   Method: leading pulse");
   } else if (method_ == DIM_METHOD_LEADING) {
@@ -230,7 +236,4 @@ void AcDimmer::dump_config() {
   ESP_LOGV(TAG, "  Estimated Frequency: %.3fHz", 1e6f / this->store_.cycle_time_us / 2);
 }
 
-}  // namespace ac_dimmer
-}  // namespace esphome
-
-#endif  // USE_ARDUINO
+}  // namespace esphome::ac_dimmer

esphome/components/ac_dimmer/ac_dimmer.h

@@ -1,13 +1,10 @@
 #pragma once
 
-#ifdef USE_ARDUINO
-
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
 #include "esphome/components/output/float_output.h"
 
-namespace esphome {
-namespace ac_dimmer {
+namespace esphome::ac_dimmer {
 
 enum DimMethod { DIM_METHOD_LEADING_PULSE = 0, DIM_METHOD_LEADING, DIM_METHOD_TRAILING };
 
@@ -64,7 +61,4 @@ class AcDimmer : public output::FloatOutput, public Component {
   DimMethod method_;
 };
 
-}  // namespace ac_dimmer
-}  // namespace esphome
-
-#endif  // USE_ARDUINO
+}  // namespace esphome::ac_dimmer

esphome/components/ac_dimmer/hw_timer_esp_idf.cpp

@@ -0,0 +1,152 @@
+#ifdef USE_ESP32
+
+#include "hw_timer_esp_idf.h"
+
+#include "freertos/FreeRTOS.h"
+#include "esphome/core/log.h"
+
+#include "driver/gptimer.h"
+#include "esp_clk_tree.h"
+#include "soc/clk_tree_defs.h"
+
+static const char *const TAG = "hw_timer_esp_idf";
+
+namespace esphome::ac_dimmer {
+
+// GPTimer divider constraints from ESP-IDF documentation
+static constexpr uint32_t GPTIMER_DIVIDER_MIN = 2;
+static constexpr uint32_t GPTIMER_DIVIDER_MAX = 65536;
+
+using voidFuncPtr = void (*)();
+using voidFuncPtrArg = void (*)(void *);
+
+struct InterruptConfigT {
+  voidFuncPtr fn{nullptr};
+  void *arg{nullptr};
+};
+
+struct HWTimer {
+  gptimer_handle_t timer_handle{nullptr};
+  InterruptConfigT interrupt_handle{};
+  bool timer_started{false};
+};
+
+HWTimer *timer_begin(uint32_t frequency) {
+  esp_err_t err = ESP_OK;
+  uint32_t counter_src_hz = 0;
+  uint32_t divider = 0;
+  soc_module_clk_t clk;
+  for (auto clk_candidate : SOC_GPTIMER_CLKS) {
+    clk = clk_candidate;
+    esp_clk_tree_src_get_freq_hz(clk, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &counter_src_hz);
+    divider = counter_src_hz / frequency;
+    if ((divider >= GPTIMER_DIVIDER_MIN) && (divider <= GPTIMER_DIVIDER_MAX)) {
+      break;
+    } else {
+      divider = 0;
+    }
+  }
+
+  if (divider == 0) {
+    ESP_LOGE(TAG, "Resolution not possible; aborting");
+    return nullptr;
+  }
+
+  gptimer_config_t config = {
+      .clk_src = static_cast<gptimer_clock_source_t>(clk),
+      .direction = GPTIMER_COUNT_UP,
+      .resolution_hz = frequency,
+      .flags = {.intr_shared = true},
+  };
+
+  HWTimer *timer = new HWTimer();
+
+  err = gptimer_new_timer(&config, &timer->timer_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "GPTimer creation failed; error %d", err);
+    delete timer;
+    return nullptr;
+  }
+
+  err = gptimer_enable(timer->timer_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "GPTimer enable failed; error %d", err);
+    gptimer_del_timer(timer->timer_handle);
+    delete timer;
+    return nullptr;
+  }
+
+  err = gptimer_start(timer->timer_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "GPTimer start failed; error %d", err);
+    gptimer_disable(timer->timer_handle);
+    gptimer_del_timer(timer->timer_handle);
+    delete timer;
+    return nullptr;
+  }
+
+  timer->timer_started = true;
+  return timer;
+}
+
+bool IRAM_ATTR timer_fn_wrapper(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *args) {
+  auto *isr = static_cast<InterruptConfigT *>(args);
+  if (isr->fn) {
+    if (isr->arg) {
+      reinterpret_cast<voidFuncPtrArg>(isr->fn)(isr->arg);
+    } else {
+      isr->fn();
+    }
+  }
+  // Return false to indicate that no higher-priority task was woken and no context switch is requested.
+  return false;
+}
+
+static void timer_attach_interrupt_functional_arg(HWTimer *timer, void (*user_func)(void *), void *arg) {
+  if (timer == nullptr) {
+    ESP_LOGE(TAG, "Timer handle is nullptr");
+    return;
+  }
+  gptimer_event_callbacks_t cbs = {
+      .on_alarm = timer_fn_wrapper,
+  };
+
+  timer->interrupt_handle.fn = reinterpret_cast<voidFuncPtr>(user_func);
+  timer->interrupt_handle.arg = arg;
+
+  if (timer->timer_started) {
+    gptimer_stop(timer->timer_handle);
+  }
+  gptimer_disable(timer->timer_handle);
+  esp_err_t err = gptimer_register_event_callbacks(timer->timer_handle, &cbs, &timer->interrupt_handle);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "Timer Attach Interrupt failed; error %d", err);
+  }
+  gptimer_enable(timer->timer_handle);
+  if (timer->timer_started) {
+    gptimer_start(timer->timer_handle);
+  }
+}
+
+void timer_attach_interrupt(HWTimer *timer, voidFuncPtr user_func) {
+  timer_attach_interrupt_functional_arg(timer, reinterpret_cast<voidFuncPtrArg>(user_func), nullptr);
+}
+
+void timer_alarm(HWTimer *timer, uint64_t alarm_value, bool autoreload, uint64_t reload_count) {
+  if (timer == nullptr) {
+    ESP_LOGE(TAG, "Timer handle is nullptr");
+    return;
+  }
+  gptimer_alarm_config_t alarm_cfg = {
+      .alarm_count = alarm_value,
+      .reload_count = reload_count,
+      .flags = {.auto_reload_on_alarm = autoreload},
+  };
+  esp_err_t err = gptimer_set_alarm_action(timer->timer_handle, &alarm_cfg);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "Timer Alarm Write failed; error %d", err);
+  }
+}
+
+}  // namespace esphome::ac_dimmer
+#endif

esphome/components/ac_dimmer/hw_timer_esp_idf.h

@@ -0,0 +1,17 @@
+#pragma once
+#ifdef USE_ESP32
+
+#include "driver/gptimer_types.h"
+
+namespace esphome::ac_dimmer {
+
+struct HWTimer;
+
+HWTimer *timer_begin(uint32_t frequency);
+
+void timer_attach_interrupt(HWTimer *timer, void (*user_func)());
+void timer_alarm(HWTimer *timer, uint64_t alarm_value, bool autoreload, uint64_t reload_count);
+
+}  // namespace esphome::ac_dimmer
+
+#endif

esphome/components/ac_dimmer/output.py

@@ -3,6 +3,7 @@ import esphome.codegen as cg
 from esphome.components import output
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_METHOD, CONF_MIN_POWER
+from esphome.core import CORE
 
 CODEOWNERS = ["@glmnet"]
 
@@ -31,11 +32,16 @@ CONFIG_SCHEMA = cv.All(
             ),
         }
     ).extend(cv.COMPONENT_SCHEMA),
-    cv.only_with_arduino,
 )
 
 
 async def to_code(config):
+    if CORE.is_esp8266:
+        # ac_dimmer uses setTimer1Callback which requires the waveform generator
+        from esphome.components.esp8266.const import require_waveform
+
+        require_waveform()
+
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 

esphome/components/adalight/adalight_light_effect.cpp

@@ -9,7 +9,7 @@ static const char *const TAG = "adalight_light_effect";
 static const uint32_t ADALIGHT_ACK_INTERVAL = 1000;
 static const uint32_t ADALIGHT_RECEIVE_TIMEOUT = 1000;
 
-AdalightLightEffect::AdalightLightEffect(const std::string &name) : AddressableLightEffect(name) {}
+AdalightLightEffect::AdalightLightEffect(const char *name) : AddressableLightEffect(name) {}
 
 void AdalightLightEffect::start() {
   AddressableLightEffect::start();

esphome/components/adalight/adalight_light_effect.h

@@ -11,7 +11,7 @@ namespace adalight {
 
 class AdalightLightEffect : public light::AddressableLightEffect, public uart::UARTDevice {
  public:
-  AdalightLightEffect(const std::string &name);
+  AdalightLightEffect(const char *name);
 
   void start() override;
   void stop() override;

esphome/components/adc/__init__.py

@@ -1,15 +1,17 @@
 from esphome import pins
 import esphome.codegen as cg
-from esphome.components.esp32 import VARIANT_ESP32P4, get_esp32_variant
-from esphome.components.esp32.const import (
+from esphome.components.esp32 import (
     VARIANT_ESP32,
     VARIANT_ESP32C2,
     VARIANT_ESP32C3,
     VARIANT_ESP32C5,
     VARIANT_ESP32C6,
+    VARIANT_ESP32C61,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
+    get_esp32_variant,
 )
 import esphome.config_validation as cv
 from esphome.const import CONF_ANALOG, CONF_INPUT, CONF_NUMBER, PLATFORM_ESP8266
@@ -99,6 +101,13 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         5: adc_channel_t.ADC_CHANNEL_5,
         6: adc_channel_t.ADC_CHANNEL_6,
     },
+    # https://docs.espressif.com/projects/esp-idf/en/latest/esp32c61/api-reference/peripherals/gpio.html
+    VARIANT_ESP32C61: {
+        1: adc_channel_t.ADC_CHANNEL_0,
+        3: adc_channel_t.ADC_CHANNEL_1,
+        4: adc_channel_t.ADC_CHANNEL_2,
+        5: adc_channel_t.ADC_CHANNEL_3,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32h2/include/soc/adc_channel.h
     VARIANT_ESP32H2: {
         1: adc_channel_t.ADC_CHANNEL_0,
@@ -107,6 +116,17 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         4: adc_channel_t.ADC_CHANNEL_3,
         5: adc_channel_t.ADC_CHANNEL_4,
     },
+    # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32p4/include/soc/adc_channel.h
+    VARIANT_ESP32P4: {
+        16: adc_channel_t.ADC_CHANNEL_0,
+        17: adc_channel_t.ADC_CHANNEL_1,
+        18: adc_channel_t.ADC_CHANNEL_2,
+        19: adc_channel_t.ADC_CHANNEL_3,
+        20: adc_channel_t.ADC_CHANNEL_4,
+        21: adc_channel_t.ADC_CHANNEL_5,
+        22: adc_channel_t.ADC_CHANNEL_6,
+        23: adc_channel_t.ADC_CHANNEL_7,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32s2/include/soc/adc_channel.h
     VARIANT_ESP32S2: {
         1: adc_channel_t.ADC_CHANNEL_0,
@@ -133,16 +153,6 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         9: adc_channel_t.ADC_CHANNEL_8,
         10: adc_channel_t.ADC_CHANNEL_9,
     },
-    VARIANT_ESP32P4: {
-        16: adc_channel_t.ADC_CHANNEL_0,
-        17: adc_channel_t.ADC_CHANNEL_1,
-        18: adc_channel_t.ADC_CHANNEL_2,
-        19: adc_channel_t.ADC_CHANNEL_3,
-        20: adc_channel_t.ADC_CHANNEL_4,
-        21: adc_channel_t.ADC_CHANNEL_5,
-        22: adc_channel_t.ADC_CHANNEL_6,
-        23: adc_channel_t.ADC_CHANNEL_7,
-    },
 }
 
 # pin to adc2 channel mapping
@@ -173,8 +183,19 @@ ESP32_VARIANT_ADC2_PIN_TO_CHANNEL = {
     VARIANT_ESP32C5: {},  # no ADC2
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32c6/include/soc/adc_channel.h
     VARIANT_ESP32C6: {},  # no ADC2
+    # ESP32-C61 has no ADC2
+    VARIANT_ESP32C61: {},  # no ADC2
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32h2/include/soc/adc_channel.h
     VARIANT_ESP32H2: {},  # no ADC2
+    # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32p4/include/soc/adc_channel.h
+    VARIANT_ESP32P4: {
+        49: adc_channel_t.ADC_CHANNEL_0,
+        50: adc_channel_t.ADC_CHANNEL_1,
+        51: adc_channel_t.ADC_CHANNEL_2,
+        52: adc_channel_t.ADC_CHANNEL_3,
+        53: adc_channel_t.ADC_CHANNEL_4,
+        54: adc_channel_t.ADC_CHANNEL_5,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32s2/include/soc/adc_channel.h
     VARIANT_ESP32S2: {
         11: adc_channel_t.ADC_CHANNEL_0,
@@ -201,14 +222,6 @@ ESP32_VARIANT_ADC2_PIN_TO_CHANNEL = {
         19: adc_channel_t.ADC_CHANNEL_8,
         20: adc_channel_t.ADC_CHANNEL_9,
     },
-    VARIANT_ESP32P4: {
-        49: adc_channel_t.ADC_CHANNEL_0,
-        50: adc_channel_t.ADC_CHANNEL_1,
-        51: adc_channel_t.ADC_CHANNEL_2,
-        52: adc_channel_t.ADC_CHANNEL_3,
-        53: adc_channel_t.ADC_CHANNEL_4,
-        54: adc_channel_t.ADC_CHANNEL_5,
-    },
 }
 
 

esphome/components/adc/adc_sensor.h

@@ -68,11 +68,6 @@ class ADCSensor : public sensor::Sensor, public PollingComponent, public voltage
   /// This method is called during the ESPHome setup process to log the configuration.
   void dump_config() override;
 
-  /// Return the setup priority for this component.
-  /// Components with higher priority are initialized earlier during setup.
-  /// @return A float representing the setup priority.
-  float get_setup_priority() const override;
-
 #ifdef USE_ZEPHYR
   /// Set the ADC channel to be used by the ADC sensor.
   /// @param channel Pointer to an adc_dt_spec structure representing the ADC channel.

esphome/components/adc/adc_sensor_common.cpp

@@ -79,7 +79,5 @@ void ADCSensor::set_sample_count(uint8_t sample_count) {
 
 void ADCSensor::set_sampling_mode(SamplingMode sampling_mode) { this->sampling_mode_ = sampling_mode; }
 
-float ADCSensor::get_setup_priority() const { return setup_priority::DATA; }
-
 }  // namespace adc
 }  // namespace esphome

esphome/components/adc/adc_sensor_esp32.cpp

@@ -42,10 +42,11 @@ void ADCSensor::setup() {
     adc_oneshot_unit_init_cfg_t init_config = {};  // Zero initialize
     init_config.unit_id = this->adc_unit_;
     init_config.ulp_mode = ADC_ULP_MODE_DISABLE;
-#if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32H2
+#if USE_ESP32_VARIANT_ESP32C2 || USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || \
+    USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     init_config.clk_src = ADC_DIGI_CLK_SRC_DEFAULT;
-#endif  // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 ||
-        // USE_ESP32_VARIANT_ESP32H2
+#endif  // USE_ESP32_VARIANT_ESP32C2 || USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 ||
+        // USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     esp_err_t err = adc_oneshot_new_unit(&init_config, &ADCSensor::shared_adc_handles[this->adc_unit_]);
     if (err != ESP_OK) {
       ESP_LOGE(TAG, "Error initializing %s: %d", LOG_STR_ARG(adc_unit_to_str(this->adc_unit_)), err);
@@ -74,8 +75,8 @@ void ADCSensor::setup() {
     adc_cali_handle_t handle = nullptr;
 
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
-    // RISC-V variants and S3 use curve fitting calibration
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
+    // RISC-V variants (except C2) and S3 use curve fitting calibration
     adc_cali_curve_fitting_config_t cali_config = {};  // Zero initialize first
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
     cali_config.chan = this->channel_;
@@ -93,14 +94,14 @@ void ADCSensor::setup() {
       ESP_LOGW(TAG, "Curve fitting calibration failed with error %d, will use uncalibrated readings", err);
       this->setup_flags_.calibration_complete = false;
     }
-#else  // Other ESP32 variants use line fitting calibration
+#else  // ESP32, ESP32-S2, and ESP32-C2 use line fitting calibration
     adc_cali_line_fitting_config_t cali_config = {
       .unit_id = this->adc_unit_,
       .atten = this->attenuation_,
       .bitwidth = ADC_BITWIDTH_DEFAULT,
-#if !defined(USE_ESP32_VARIANT_ESP32S2)
+#if !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
       .default_vref = 1100,  // Default reference voltage in mV
-#endif  // !defined(USE_ESP32_VARIANT_ESP32S2)
+#endif  // !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
     };
     err = adc_cali_create_scheme_line_fitting(&cali_config, &handle);
     if (err == ESP_OK) {
@@ -111,7 +112,7 @@ void ADCSensor::setup() {
       ESP_LOGW(TAG, "Line fitting calibration failed with error %d, will use uncalibrated readings", err);
       this->setup_flags_.calibration_complete = false;
     }
-#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32S3 || ESP32H2
+#endif  // ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
   }
 
   this->setup_flags_.init_complete = true;
@@ -120,23 +121,21 @@ void ADCSensor::setup() {
 void ADCSensor::dump_config() {
   LOG_SENSOR("", "ADC Sensor", this);
   LOG_PIN("  Pin: ", this->pin_);
-  ESP_LOGCONFIG(TAG,
-                "  Channel:       %d\n"
-                "  Unit:          %s\n"
-                "  Attenuation:   %s\n"
-                "  Samples:       %i\n"
-                "  Sampling mode: %s",
-                this->channel_, LOG_STR_ARG(adc_unit_to_str(this->adc_unit_)),
-                this->autorange_ ? "Auto" : LOG_STR_ARG(attenuation_to_str(this->attenuation_)), this->sample_count_,
-                LOG_STR_ARG(sampling_mode_to_str(this->sampling_mode_)));
-
   ESP_LOGCONFIG(
       TAG,
+      "  Channel:       %d\n"
+      "  Unit:          %s\n"
+      "  Attenuation:   %s\n"
+      "  Samples:       %i\n"
+      "  Sampling mode: %s\n"
       "  Setup Status:\n"
       "    Handle Init:  %s\n"
       "    Config:       %s\n"
       "    Calibration:  %s\n"
       "    Overall Init: %s",
+      this->channel_, LOG_STR_ARG(adc_unit_to_str(this->adc_unit_)),
+      this->autorange_ ? "Auto" : LOG_STR_ARG(attenuation_to_str(this->attenuation_)), this->sample_count_,
+      LOG_STR_ARG(sampling_mode_to_str(this->sampling_mode_)),
       this->setup_flags_.handle_init_complete ? "OK" : "FAILED", this->setup_flags_.config_complete ? "OK" : "FAILED",
       this->setup_flags_.calibration_complete ? "OK" : "FAILED", this->setup_flags_.init_complete ? "OK" : "FAILED");
 
@@ -186,11 +185,11 @@ float ADCSensor::sample_fixed_attenuation_() {
       ESP_LOGW(TAG, "ADC calibration conversion failed with error %d, disabling calibration", err);
       if (this->calibration_handle_ != nullptr) {
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
         adc_cali_delete_scheme_curve_fitting(this->calibration_handle_);
 #else   // Other ESP32 variants use line fitting calibration
         adc_cali_delete_scheme_line_fitting(this->calibration_handle_);
-#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32S3 || ESP32H2
+#endif  // ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
         this->calibration_handle_ = nullptr;
       }
     }
@@ -219,7 +218,7 @@ float ADCSensor::sample_autorange_() {
     if (this->calibration_handle_ != nullptr) {
       // Delete old calibration handle
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
       adc_cali_delete_scheme_curve_fitting(this->calibration_handle_);
 #else
       adc_cali_delete_scheme_line_fitting(this->calibration_handle_);
@@ -231,7 +230,7 @@ float ADCSensor::sample_autorange_() {
     adc_cali_handle_t handle = nullptr;
 
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
     adc_cali_curve_fitting_config_t cali_config = {};
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
     cali_config.chan = this->channel_;
@@ -248,7 +247,7 @@ float ADCSensor::sample_autorange_() {
       .unit_id = this->adc_unit_,
       .atten = atten,
       .bitwidth = ADC_BITWIDTH_DEFAULT,
-#if !defined(USE_ESP32_VARIANT_ESP32S2)
+#if !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
       .default_vref = 1100,
 #endif
     };
@@ -266,7 +265,7 @@ float ADCSensor::sample_autorange_() {
       ESP_LOGW(TAG, "ADC read failed in autorange with error %d", err);
       if (handle != nullptr) {
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
         adc_cali_delete_scheme_curve_fitting(handle);
 #else
         adc_cali_delete_scheme_line_fitting(handle);
@@ -288,7 +287,7 @@ float ADCSensor::sample_autorange_() {
       }
       // Clean up calibration handle
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
       adc_cali_delete_scheme_curve_fitting(handle);
 #else
       adc_cali_delete_scheme_line_fitting(handle);

esphome/components/adc/sensor.py

@@ -2,7 +2,7 @@ import logging
 
 import esphome.codegen as cg
 from esphome.components import sensor, voltage_sampler
-from esphome.components.esp32 import get_esp32_variant
+from esphome.components.esp32 import get_esp32_variant, include_builtin_idf_component
 from esphome.components.nrf52.const import AIN_TO_GPIO, EXTRA_ADC
 from esphome.components.zephyr import (
     zephyr_add_overlay,
@@ -118,6 +118,9 @@ async def to_code(config):
     cg.add(var.set_sampling_mode(config[CONF_SAMPLING_MODE]))
 
     if CORE.is_esp32:
+        # Re-enable ESP-IDF's ADC driver (excluded by default to save compile time)
+        include_builtin_idf_component("esp_adc")
+
         if attenuation := config.get(CONF_ATTENUATION):
             if attenuation == "auto":
                 cg.add(var.set_autorange(cg.global_ns.true))
@@ -160,21 +163,21 @@ async def to_code(config):
         zephyr_add_user("io-channels", f"<&adc {channel_id}>")
         zephyr_add_overlay(
             f"""
-&adc {{
-    #address-cells = <1>;
-    #size-cells = <0>;
+                &adc {{
+                    #address-cells = <1>;
+                    #size-cells = <0>;
 
-    channel@{channel_id} {{
-        reg = <{channel_id}>;
-        zephyr,gain = "{gain}";
-        zephyr,reference = "ADC_REF_INTERNAL";
-        zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
-        zephyr,input-positive = <NRF_SAADC_{pin_number}>;
-        zephyr,resolution = <14>;
-        zephyr,oversampling = <8>;
-    }};
-}};
-"""
+                    channel@{channel_id} {{
+                        reg = <{channel_id}>;
+                        zephyr,gain = "{gain}";
+                        zephyr,reference = "ADC_REF_INTERNAL";
+                        zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+                        zephyr,input-positive = <NRF_SAADC_{pin_number}>;
+                        zephyr,resolution = <14>;
+                        zephyr,oversampling = <8>;
+                    }};
+                }};
+            """
         )
 
 

esphome/components/adc128s102/sensor/adc128s102_sensor.cpp

@@ -9,8 +9,6 @@ static const char *const TAG = "adc128s102.sensor";
 
 ADC128S102Sensor::ADC128S102Sensor(uint8_t channel) : channel_(channel) {}
 
-float ADC128S102Sensor::get_setup_priority() const { return setup_priority::DATA; }
-
 void ADC128S102Sensor::dump_config() {
   LOG_SENSOR("", "ADC128S102 Sensor", this);
   ESP_LOGCONFIG(TAG, "  Pin: %u", this->channel_);

esphome/components/adc128s102/sensor/adc128s102_sensor.h

@@ -19,7 +19,6 @@ class ADC128S102Sensor : public PollingComponent,
 
   void update() override;
   void dump_config() override;
-  float get_setup_priority() const override;
   float sample() override;
 
  protected:

esphome/components/addressable_light/addressable_light_display.h

@@ -25,11 +25,13 @@ class AddressableLightDisplay : public display::DisplayBuffer {
       if (enabled_ && !enabled) {  // enabled -> disabled
         // - Tell the parent light to refresh, effectively wiping the display. Also
         //   restores the previous effect (if any).
-        light_state_->make_call().set_effect(this->last_effect_).perform();
+        if (this->last_effect_index_.has_value()) {
+          light_state_->make_call().set_effect(*this->last_effect_index_).perform();
+        }
 
       } else if (!enabled_ && enabled) {  // disabled -> enabled
-        // - Save the current effect.
-        this->last_effect_ = light_state_->get_effect_name();
+        // - Save the current effect index.
+        this->last_effect_index_ = light_state_->get_current_effect_index();
         // - Disable any current effect.
         light_state_->make_call().set_effect(0).perform();
       }
@@ -56,7 +58,7 @@ class AddressableLightDisplay : public display::DisplayBuffer {
   int32_t width_;
   int32_t height_;
   std::vector<Color> addressable_light_buffer_;
-  optional<std::string> last_effect_;
+  optional<uint32_t> last_effect_index_;
   optional<std::function<int(int, int)>> pixel_mapper_f_;
 };
 }  // namespace addressable_light

esphome/components/ade7880/ade7880.cpp

@@ -162,11 +162,13 @@ void ADE7880::update() {
 }
 
 void ADE7880::dump_config() {
-  ESP_LOGCONFIG(TAG, "ADE7880:");
+  ESP_LOGCONFIG(TAG,
+                "ADE7880:\n"
+                "  Frequency: %.0f Hz",
+                this->frequency_);
   LOG_PIN("  IRQ0  Pin: ", this->irq0_pin_);
   LOG_PIN("  IRQ1  Pin: ", this->irq1_pin_);
   LOG_PIN("  RESET Pin: ", this->reset_pin_);
-  ESP_LOGCONFIG(TAG, "  Frequency: %.0f Hz", this->frequency_);
 
   if (this->channel_a_ != nullptr) {
     ESP_LOGCONFIG(TAG, "  Phase A:");

esphome/components/ade7880/sensor.py

@@ -227,7 +227,7 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): cv.declare_id(ADE7880),
             cv.Optional(CONF_FREQUENCY, default="50Hz"): cv.All(
-                cv.frequency, cv.Range(min=45.0, max=66.0)
+                cv.frequency, cv.float_range(min=45.0, max=66.0)
             ),
             cv.Optional(CONF_IRQ0_PIN): pins.internal_gpio_input_pin_schema,
             cv.Required(CONF_IRQ1_PIN): pins.internal_gpio_input_pin_schema,

esphome/components/ade7953_base/__init__.py

@@ -24,6 +24,8 @@ from esphome.const import (
     UNIT_WATT,
 )
 
+CODEOWNERS = ["@angelnu"]
+
 CONF_CURRENT_A = "current_a"
 CONF_CURRENT_B = "current_b"
 CONF_ACTIVE_POWER_A = "active_power_a"

esphome/components/ade7953_base/ade7953_base.cpp

@@ -25,7 +25,8 @@ void ADE7953::setup() {
     this->ade_write_8(PGA_V_8, pga_v_);
     this->ade_write_8(PGA_IA_8, pga_ia_);
     this->ade_write_8(PGA_IB_8, pga_ib_);
-    this->ade_write_32(AVGAIN_32, vgain_);
+    this->ade_write_32(AVGAIN_32, avgain_);
+    this->ade_write_32(BVGAIN_32, bvgain_);
     this->ade_write_32(AIGAIN_32, aigain_);
     this->ade_write_32(BIGAIN_32, bigain_);
     this->ade_write_32(AWGAIN_32, awgain_);
@@ -34,7 +35,8 @@ void ADE7953::setup() {
     this->ade_read_8(PGA_V_8, &pga_v_);
     this->ade_read_8(PGA_IA_8, &pga_ia_);
     this->ade_read_8(PGA_IB_8, &pga_ib_);
-    this->ade_read_32(AVGAIN_32, &vgain_);
+    this->ade_read_32(AVGAIN_32, &avgain_);
+    this->ade_read_32(BVGAIN_32, &bvgain_);
     this->ade_read_32(AIGAIN_32, &aigain_);
     this->ade_read_32(BIGAIN_32, &bigain_);
     this->ade_read_32(AWGAIN_32, &awgain_);
@@ -63,13 +65,14 @@ void ADE7953::dump_config() {
                 "  PGA_V_8: 0x%X\n"
                 "  PGA_IA_8: 0x%X\n"
                 "  PGA_IB_8: 0x%X\n"
-                "  VGAIN_32: 0x%08jX\n"
+                "  AVGAIN_32: 0x%08jX\n"
+                "  BVGAIN_32: 0x%08jX\n"
                 "  AIGAIN_32: 0x%08jX\n"
                 "  BIGAIN_32: 0x%08jX\n"
                 "  AWGAIN_32: 0x%08jX\n"
                 "  BWGAIN_32: 0x%08jX",
-                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) vgain_, (uintmax_t) aigain_,
-                (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
+                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) avgain_, (uintmax_t) bvgain_,
+                (uintmax_t) aigain_, (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
 }
 
 #define ADE_PUBLISH_(name, val, factor) \

esphome/components/ade7953_base/ade7953_base.h

@@ -46,7 +46,12 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   void set_pga_ib(uint8_t pga_ib) { pga_ib_ = pga_ib; }
 
   // Set input gains
-  void set_vgain(uint32_t vgain) { vgain_ = vgain; }
+  void set_vgain(uint32_t vgain) {
+    // Datasheet says: "to avoid discrepancies in other registers,
+    // if AVGAIN is set then BVGAIN should be set to the same value."
+    avgain_ = vgain;
+    bvgain_ = vgain;
+  }
   void set_aigain(uint32_t aigain) { aigain_ = aigain; }
   void set_bigain(uint32_t bigain) { bigain_ = bigain; }
   void set_awgain(uint32_t awgain) { awgain_ = awgain; }
@@ -100,7 +105,8 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   uint8_t pga_v_;
   uint8_t pga_ia_;
   uint8_t pga_ib_;
-  uint32_t vgain_;
+  uint32_t avgain_;
+  uint32_t bvgain_;
   uint32_t aigain_;
   uint32_t bigain_;
   uint32_t awgain_;

esphome/components/ads1115/sensor/ads1115_sensor.cpp

@@ -21,10 +21,12 @@ void ADS1115Sensor::update() {
 
 void ADS1115Sensor::dump_config() {
   LOG_SENSOR("  ", "ADS1115 Sensor", this);
-  ESP_LOGCONFIG(TAG, "    Multiplexer: %u", this->multiplexer_);
-  ESP_LOGCONFIG(TAG, "    Gain: %u", this->gain_);
-  ESP_LOGCONFIG(TAG, "    Resolution: %u", this->resolution_);
-  ESP_LOGCONFIG(TAG, "    Sample rate: %u", this->samplerate_);
+  ESP_LOGCONFIG(TAG,
+                "    Multiplexer: %u\n"
+                "    Gain: %u\n"
+                "    Resolution: %u\n"
+                "    Sample rate: %u",
+                this->multiplexer_, this->gain_, this->resolution_, this->samplerate_);
 }
 
 }  // namespace ads1115

esphome/components/ads1118/sensor/ads1118_sensor.cpp

@@ -9,8 +9,10 @@ static const char *const TAG = "ads1118.sensor";
 
 void ADS1118Sensor::dump_config() {
   LOG_SENSOR("  ", "ADS1118 Sensor", this);
-  ESP_LOGCONFIG(TAG, "    Multiplexer: %u", this->multiplexer_);
-  ESP_LOGCONFIG(TAG, "    Gain: %u", this->gain_);
+  ESP_LOGCONFIG(TAG,
+                "    Multiplexer: %u\n"
+                "    Gain: %u",
+                this->multiplexer_, this->gain_);
 }
 
 float ADS1118Sensor::sample() {

esphome/components/ags10/ags10.h

@@ -105,7 +105,7 @@ template<typename... Ts> class AGS10NewI2cAddressAction : public Action<Ts...>,
  public:
   TEMPLATABLE_VALUE(uint8_t, new_address)
 
-  void play(Ts... x) override { this->parent_->new_i2c_address(this->new_address_.value(x...)); }
+  void play(const Ts &...x) override { this->parent_->new_i2c_address(this->new_address_.value(x...)); }
 };
 
 enum AGS10SetZeroPointActionMode {
@@ -122,7 +122,7 @@ template<typename... Ts> class AGS10SetZeroPointAction : public Action<Ts...>, p
   TEMPLATABLE_VALUE(uint16_t, value)
   TEMPLATABLE_VALUE(AGS10SetZeroPointActionMode, mode)
 
-  void play(Ts... x) override {
+  void play(const Ts &...x) override {
     switch (this->mode_.value(x...)) {
       case FACTORY_DEFAULT:
         this->parent_->set_zero_point_with_factory_defaults();

esphome/components/aht10/aht10.cpp

@@ -83,7 +83,7 @@ void AHT10Component::setup() {
 void AHT10Component::restart_read_() {
   if (this->read_count_ == AHT10_ATTEMPTS) {
     this->read_count_ = 0;
-    this->status_set_error("Reading timed out");
+    this->status_set_error(LOG_STR("Reading timed out"));
     return;
   }
   this->read_count_++;
@@ -150,8 +150,6 @@ void AHT10Component::update() {
   this->restart_read_();
 }
 
-float AHT10Component::get_setup_priority() const { return setup_priority::DATA; }
-
 void AHT10Component::dump_config() {
   ESP_LOGCONFIG(TAG, "AHT10:");
   LOG_I2C_DEVICE(this);

esphome/components/aht10/aht10.h

@@ -16,7 +16,6 @@ class AHT10Component : public PollingComponent, public i2c::I2CDevice {
   void setup() override;
   void update() override;
   void dump_config() override;
-  float get_setup_priority() const override;
   void set_variant(AHT10Variant variant) { this->variant_ = variant; }
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }

esphome/components/aic3204/automation.h

@@ -13,7 +13,7 @@ template<typename... Ts> class SetAutoMuteAction : public Action<Ts...> {
 
   TEMPLATABLE_VALUE(uint8_t, auto_mute_mode)
 
-  void play(Ts... x) override { this->aic3204_->set_auto_mute_mode(this->auto_mute_mode_.value(x...)); }
+  void play(const Ts &...x) override { this->aic3204_->set_auto_mute_mode(this->auto_mute_mode_.value(x...)); }
 
  protected:
   AIC3204 *aic3204_;

esphome/components/airthings_ble/airthings_listener.cpp

@@ -20,7 +20,8 @@ bool AirthingsListener::parse_device(const esp32_ble_tracker::ESPBTDevice &devic
       sn |= ((uint32_t) it.data[2] << 16);
       sn |= ((uint32_t) it.data[3] << 24);
 
-      ESP_LOGD(TAG, "Found AirThings device Serial:%" PRIu32 " (MAC: %s)", sn, device.address_str().c_str());
+      char addr_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
+      ESP_LOGD(TAG, "Found AirThings device Serial:%" PRIu32 " (MAC: %s)", sn, device.address_str_to(addr_buf));
       return true;
     }
   }

esphome/components/airthings_wave_base/airthings_wave_base.cpp

@@ -1,4 +1,5 @@
 #include "airthings_wave_base.h"
+#include "esphome/components/esp32_ble/ble_uuid.h"
 
 // All information related to reading battery information came from the sensors.airthings_wave
 // project by Sverre Hamre (https://github.com/sverrham/sensor.airthings_wave)
@@ -93,8 +94,10 @@ void AirthingsWaveBase::update() {
 bool AirthingsWaveBase::request_read_values_() {
   auto *chr = this->parent()->get_characteristic(this->service_uuid_, this->sensors_data_characteristic_uuid_);
   if (chr == nullptr) {
-    ESP_LOGW(TAG, "No sensor characteristic found at service %s char %s", this->service_uuid_.to_string().c_str(),
-             this->sensors_data_characteristic_uuid_.to_string().c_str());
+    char service_buf[esp32_ble::UUID_STR_LEN];
+    char char_buf[esp32_ble::UUID_STR_LEN];
+    ESP_LOGW(TAG, "No sensor characteristic found at service %s char %s", this->service_uuid_.to_str(service_buf),
+             this->sensors_data_characteristic_uuid_.to_str(char_buf));
     return false;
   }
 
@@ -117,17 +120,20 @@ bool AirthingsWaveBase::request_battery_() {
 
   auto *chr = this->parent()->get_characteristic(this->service_uuid_, this->access_control_point_characteristic_uuid_);
   if (chr == nullptr) {
+    char service_buf[esp32_ble::UUID_STR_LEN];
+    char char_buf[esp32_ble::UUID_STR_LEN];
     ESP_LOGW(TAG, "No access control point characteristic found at service %s char %s",
-             this->service_uuid_.to_string().c_str(),
-             this->access_control_point_characteristic_uuid_.to_string().c_str());
+             this->service_uuid_.to_str(service_buf), this->access_control_point_characteristic_uuid_.to_str(char_buf));
     return false;
   }
 
   auto *descr = this->parent()->get_descriptor(this->service_uuid_, this->access_control_point_characteristic_uuid_,
                                                CLIENT_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR_UUID);
   if (descr == nullptr) {
-    ESP_LOGW(TAG, "No CCC descriptor found at service %s char %s", this->service_uuid_.to_string().c_str(),
-             this->access_control_point_characteristic_uuid_.to_string().c_str());
+    char service_buf[esp32_ble::UUID_STR_LEN];
+    char char_buf[esp32_ble::UUID_STR_LEN];
+    ESP_LOGW(TAG, "No CCC descriptor found at service %s char %s", this->service_uuid_.to_str(service_buf),
+             this->access_control_point_characteristic_uuid_.to_str(char_buf));
     return false;
   }
 

esphome/components/alarm_control_panel/__init__.py

@@ -172,12 +172,6 @@ def alarm_control_panel_schema(
     return _ALARM_CONTROL_PANEL_SCHEMA.extend(schema)
 
 
-# Remove before 2025.11.0
-ALARM_CONTROL_PANEL_SCHEMA = alarm_control_panel_schema(AlarmControlPanel)
-ALARM_CONTROL_PANEL_SCHEMA.add_extra(
-    cv.deprecated_schema_constant("alarm_control_panel")
-)
-
 ALARM_CONTROL_PANEL_ACTION_SCHEMA = maybe_simple_id(
     {
         cv.GenerateID(): cv.use_id(AlarmControlPanel),

esphome/components/alarm_control_panel/alarm_control_panel.cpp

@@ -1,13 +1,14 @@
-#include <utility>
-
 #include "alarm_control_panel.h"
+#include "esphome/core/defines.h"
+#include "esphome/core/controller_registry.h"
+
+#include <utility>
 
 #include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
 static const char *const TAG = "alarm_control_panel";
 
@@ -30,26 +31,16 @@ void AlarmControlPanel::publish_state(AlarmControlPanelState state) {
   this->last_update_ = millis();
   if (state != this->current_state_) {
     auto prev_state = this->current_state_;
-    ESP_LOGD(TAG, "Set state to: %s, previous: %s", LOG_STR_ARG(alarm_control_panel_state_to_string(state)),
+    ESP_LOGD(TAG, "'%s' >> %s (was %s)", this->get_name().c_str(),
+             LOG_STR_ARG(alarm_control_panel_state_to_string(state)),
              LOG_STR_ARG(alarm_control_panel_state_to_string(prev_state)));
     this->current_state_ = state;
+    // Single state callback - triggers check get_state() for specific states
     this->state_callback_.call();
-    if (state == ACP_STATE_TRIGGERED) {
-      this->triggered_callback_.call();
-    } else if (state == ACP_STATE_ARMING) {
-      this->arming_callback_.call();
-    } else if (state == ACP_STATE_PENDING) {
-      this->pending_callback_.call();
-    } else if (state == ACP_STATE_ARMED_HOME) {
-      this->armed_home_callback_.call();
-    } else if (state == ACP_STATE_ARMED_NIGHT) {
-      this->armed_night_callback_.call();
-    } else if (state == ACP_STATE_ARMED_AWAY) {
-      this->armed_away_callback_.call();
-    } else if (state == ACP_STATE_DISARMED) {
-      this->disarmed_callback_.call();
-    }
-
+#if defined(USE_ALARM_CONTROL_PANEL) && defined(USE_CONTROLLER_REGISTRY)
+    ControllerRegistry::notify_alarm_control_panel_update(this);
+#endif
+    // Cleared fires when leaving TRIGGERED state
     if (prev_state == ACP_STATE_TRIGGERED) {
       this->cleared_callback_.call();
     }
@@ -64,34 +55,6 @@ void AlarmControlPanel::add_on_state_callback(std::function<void()> &&callback)
   this->state_callback_.add(std::move(callback));
 }
 
-void AlarmControlPanel::add_on_triggered_callback(std::function<void()> &&callback) {
-  this->triggered_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_arming_callback(std::function<void()> &&callback) {
-  this->arming_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_armed_home_callback(std::function<void()> &&callback) {
-  this->armed_home_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_armed_night_callback(std::function<void()> &&callback) {
-  this->armed_night_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_armed_away_callback(std::function<void()> &&callback) {
-  this->armed_away_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_pending_callback(std::function<void()> &&callback) {
-  this->pending_callback_.add(std::move(callback));
-}
-
-void AlarmControlPanel::add_on_disarmed_callback(std::function<void()> &&callback) {
-  this->disarmed_callback_.add(std::move(callback));
-}
-
 void AlarmControlPanel::add_on_cleared_callback(std::function<void()> &&callback) {
   this->cleared_callback_.add(std::move(callback));
 }
@@ -104,53 +67,29 @@ void AlarmControlPanel::add_on_ready_callback(std::function<void()> &&callback)
   this->ready_callback_.add(std::move(callback));
 }
 
-void AlarmControlPanel::arm_away(optional<std::string> code) {
+void AlarmControlPanel::arm_with_code_(AlarmControlPanelCall &(AlarmControlPanelCall::*arm_method)(),
+                                       const char *code) {
   auto call = this->make_call();
-  call.arm_away();
-  if (code.has_value())
-    call.set_code(code.value());
+  (call.*arm_method)();
+  if (code != nullptr)
+    call.set_code(code);
   call.perform();
 }
 
-void AlarmControlPanel::arm_home(optional<std::string> code) {
-  auto call = this->make_call();
-  call.arm_home();
-  if (code.has_value())
-    call.set_code(code.value());
-  call.perform();
+void AlarmControlPanel::arm_away(const char *code) { this->arm_with_code_(&AlarmControlPanelCall::arm_away, code); }
+
+void AlarmControlPanel::arm_home(const char *code) { this->arm_with_code_(&AlarmControlPanelCall::arm_home, code); }
+
+void AlarmControlPanel::arm_night(const char *code) { this->arm_with_code_(&AlarmControlPanelCall::arm_night, code); }
+
+void AlarmControlPanel::arm_vacation(const char *code) {
+  this->arm_with_code_(&AlarmControlPanelCall::arm_vacation, code);
 }
 
-void AlarmControlPanel::arm_night(optional<std::string> code) {
-  auto call = this->make_call();
-  call.arm_night();
-  if (code.has_value())
-    call.set_code(code.value());
-  call.perform();
+void AlarmControlPanel::arm_custom_bypass(const char *code) {
+  this->arm_with_code_(&AlarmControlPanelCall::arm_custom_bypass, code);
 }
 
-void AlarmControlPanel::arm_vacation(optional<std::string> code) {
-  auto call = this->make_call();
-  call.arm_vacation();
-  if (code.has_value())
-    call.set_code(code.value());
-  call.perform();
-}
+void AlarmControlPanel::disarm(const char *code) { this->arm_with_code_(&AlarmControlPanelCall::disarm, code); }
 
-void AlarmControlPanel::arm_custom_bypass(optional<std::string> code) {
-  auto call = this->make_call();
-  call.arm_custom_bypass();
-  if (code.has_value())
-    call.set_code(code.value());
-  call.perform();
-}
-
-void AlarmControlPanel::disarm(optional<std::string> code) {
-  auto call = this->make_call();
-  call.disarm();
-  if (code.has_value())
-    call.set_code(code.value());
-  call.perform();
-}
-
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/alarm_control_panel.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <map>
-
 #include "alarm_control_panel_call.h"
 #include "alarm_control_panel_state.h"
 
@@ -9,8 +7,7 @@
 #include "esphome/core/entity_base.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
 enum AlarmControlPanelFeature : uint8_t {
   // Matches Home Assistant values
@@ -35,54 +32,13 @@ class AlarmControlPanel : public EntityBase {
    */
   void publish_state(AlarmControlPanelState state);
 
-  /** Add a callback for when the state of the alarm_control_panel changes
+  /** Add a callback for when the state of the alarm_control_panel changes.
+   * Triggers can check get_state() to determine the new state.
    *
    * @param callback The callback function
    */
   void add_on_state_callback(std::function<void()> &&callback);
 
-  /** Add a callback for when the state of the alarm_control_panel chanes to triggered
-   *
-   * @param callback The callback function
-   */
-  void add_on_triggered_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel chanes to arming
-   *
-   * @param callback The callback function
-   */
-  void add_on_arming_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel changes to pending
-   *
-   * @param callback The callback function
-   */
-  void add_on_pending_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel changes to armed_home
-   *
-   * @param callback The callback function
-   */
-  void add_on_armed_home_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel changes to armed_night
-   *
-   * @param callback The callback function
-   */
-  void add_on_armed_night_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel changes to armed_away
-   *
-   * @param callback The callback function
-   */
-  void add_on_armed_away_callback(std::function<void()> &&callback);
-
-  /** Add a callback for when the state of the alarm_control_panel changes to disarmed
-   *
-   * @param callback The callback function
-   */
-  void add_on_disarmed_callback(std::function<void()> &&callback);
-
   /** Add a callback for when the state of the alarm_control_panel clears from triggered
    *
    * @param callback The callback function
@@ -120,37 +76,53 @@ class AlarmControlPanel : public EntityBase {
    *
    * @param code The code
    */
-  void arm_away(optional<std::string> code = nullopt);
+  void arm_away(const char *code = nullptr);
+  void arm_away(const optional<std::string> &code) {
+    this->arm_away(code.has_value() ? code.value().c_str() : nullptr);
+  }
 
   /** arm the alarm in home mode
    *
    * @param code The code
    */
-  void arm_home(optional<std::string> code = nullopt);
+  void arm_home(const char *code = nullptr);
+  void arm_home(const optional<std::string> &code) {
+    this->arm_home(code.has_value() ? code.value().c_str() : nullptr);
+  }
 
   /** arm the alarm in night mode
    *
    * @param code The code
    */
-  void arm_night(optional<std::string> code = nullopt);
+  void arm_night(const char *code = nullptr);
+  void arm_night(const optional<std::string> &code) {
+    this->arm_night(code.has_value() ? code.value().c_str() : nullptr);
+  }
 
   /** arm the alarm in vacation mode
    *
    * @param code The code
    */
-  void arm_vacation(optional<std::string> code = nullopt);
+  void arm_vacation(const char *code = nullptr);
+  void arm_vacation(const optional<std::string> &code) {
+    this->arm_vacation(code.has_value() ? code.value().c_str() : nullptr);
+  }
 
   /** arm the alarm in custom bypass mode
    *
    * @param code The code
    */
-  void arm_custom_bypass(optional<std::string> code = nullopt);
+  void arm_custom_bypass(const char *code = nullptr);
+  void arm_custom_bypass(const optional<std::string> &code) {
+    this->arm_custom_bypass(code.has_value() ? code.value().c_str() : nullptr);
+  }
 
   /** disarm the alarm
    *
    * @param code The code
    */
-  void disarm(optional<std::string> code = nullopt);
+  void disarm(const char *code = nullptr);
+  void disarm(const optional<std::string> &code) { this->disarm(code.has_value() ? code.value().c_str() : nullptr); }
 
   /** Get the state
    *
@@ -162,6 +134,8 @@ class AlarmControlPanel : public EntityBase {
 
  protected:
   friend AlarmControlPanelCall;
+  // Helper to reduce code duplication for arm/disarm methods
+  void arm_with_code_(AlarmControlPanelCall &(AlarmControlPanelCall::*arm_method)(), const char *code);
   // in order to store last panel state in flash
   ESPPreferenceObject pref_;
   // current state
@@ -172,29 +146,14 @@ class AlarmControlPanel : public EntityBase {
   uint32_t last_update_;
   // the call control function
   virtual void control(const AlarmControlPanelCall &call) = 0;
-  // state callback
-  CallbackManager<void()> state_callback_{};
-  // trigger callback
-  CallbackManager<void()> triggered_callback_{};
-  // arming callback
-  CallbackManager<void()> arming_callback_{};
-  // pending callback
-  CallbackManager<void()> pending_callback_{};
-  // armed_home callback
-  CallbackManager<void()> armed_home_callback_{};
-  // armed_night callback
-  CallbackManager<void()> armed_night_callback_{};
-  // armed_away callback
-  CallbackManager<void()> armed_away_callback_{};
-  // disarmed callback
-  CallbackManager<void()> disarmed_callback_{};
-  // clear callback
-  CallbackManager<void()> cleared_callback_{};
+  // state callback - triggers check get_state() for specific state
+  LazyCallbackManager<void()> state_callback_{};
+  // clear callback - fires when leaving TRIGGERED state
+  LazyCallbackManager<void()> cleared_callback_{};
   // chime callback
-  CallbackManager<void()> chime_callback_{};
+  LazyCallbackManager<void()> chime_callback_{};
   // ready callback
-  CallbackManager<void()> ready_callback_{};
+  LazyCallbackManager<void()> ready_callback_{};
 };
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/alarm_control_panel_call.cpp

@@ -4,15 +4,16 @@
 
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
 static const char *const TAG = "alarm_control_panel";
 
 AlarmControlPanelCall::AlarmControlPanelCall(AlarmControlPanel *parent) : parent_(parent) {}
 
-AlarmControlPanelCall &AlarmControlPanelCall::set_code(const std::string &code) {
-  this->code_ = code;
+AlarmControlPanelCall &AlarmControlPanelCall::set_code(const char *code) {
+  if (code != nullptr) {
+    this->code_ = std::string(code);
+  }
   return *this;
 }
 
@@ -99,5 +100,4 @@ void AlarmControlPanelCall::perform() {
   }
 }
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/alarm_control_panel_call.h

@@ -6,8 +6,7 @@
 
 #include "esphome/core/helpers.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
 class AlarmControlPanel;
 
@@ -15,7 +14,8 @@ class AlarmControlPanelCall {
  public:
   AlarmControlPanelCall(AlarmControlPanel *parent);
 
-  AlarmControlPanelCall &set_code(const std::string &code);
+  AlarmControlPanelCall &set_code(const char *code);
+  AlarmControlPanelCall &set_code(const std::string &code) { return this->set_code(code.c_str()); }
   AlarmControlPanelCall &arm_away();
   AlarmControlPanelCall &arm_home();
   AlarmControlPanelCall &arm_night();
@@ -36,5 +36,4 @@ class AlarmControlPanelCall {
   void validate_();
 };
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/alarm_control_panel_state.cpp

@@ -1,34 +1,15 @@
 #include "alarm_control_panel_state.h"
+#include "esphome/core/progmem.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
+
+// Alarm control panel state strings indexed by AlarmControlPanelState enum (0-9)
+PROGMEM_STRING_TABLE(AlarmControlPanelStateStrings, "DISARMED", "ARMED_HOME", "ARMED_AWAY", "ARMED_NIGHT",
+                     "ARMED_VACATION", "ARMED_CUSTOM_BYPASS", "PENDING", "ARMING", "DISARMING", "TRIGGERED", "UNKNOWN");
 
 const LogString *alarm_control_panel_state_to_string(AlarmControlPanelState state) {
-  switch (state) {
-    case ACP_STATE_DISARMED:
-      return LOG_STR("DISARMED");
-    case ACP_STATE_ARMED_HOME:
-      return LOG_STR("ARMED_HOME");
-    case ACP_STATE_ARMED_AWAY:
-      return LOG_STR("ARMED_AWAY");
-    case ACP_STATE_ARMED_NIGHT:
-      return LOG_STR("ARMED_NIGHT");
-    case ACP_STATE_ARMED_VACATION:
-      return LOG_STR("ARMED_VACATION");
-    case ACP_STATE_ARMED_CUSTOM_BYPASS:
-      return LOG_STR("ARMED_CUSTOM_BYPASS");
-    case ACP_STATE_PENDING:
-      return LOG_STR("PENDING");
-    case ACP_STATE_ARMING:
-      return LOG_STR("ARMING");
-    case ACP_STATE_DISARMING:
-      return LOG_STR("DISARMING");
-    case ACP_STATE_TRIGGERED:
-      return LOG_STR("TRIGGERED");
-    default:
-      return LOG_STR("UNKNOWN");
-  }
+  return AlarmControlPanelStateStrings::get_log_str(static_cast<uint8_t>(state),
+                                                    AlarmControlPanelStateStrings::LAST_INDEX);
 }
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/alarm_control_panel_state.h

@@ -3,8 +3,7 @@
 #include <cstdint>
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
 enum AlarmControlPanelState : uint8_t {
   ACP_STATE_DISARMED = 0,
@@ -25,5 +24,4 @@ enum AlarmControlPanelState : uint8_t {
  */
 const LogString *alarm_control_panel_state_to_string(AlarmControlPanelState state);
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/automation.h

@@ -3,9 +3,9 @@
 #include "esphome/core/automation.h"
 #include "alarm_control_panel.h"
 
-namespace esphome {
-namespace alarm_control_panel {
+namespace esphome::alarm_control_panel {
 
+/// Trigger on any state change
 class StateTrigger : public Trigger<> {
  public:
   explicit StateTrigger(AlarmControlPanel *alarm_control_panel) {
@@ -13,55 +13,30 @@ class StateTrigger : public Trigger<> {
   }
 };
 
-class TriggeredTrigger : public Trigger<> {
+/// Template trigger that fires when entering a specific state
+template<AlarmControlPanelState State> class StateEnterTrigger : public Trigger<> {
  public:
-  explicit TriggeredTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_triggered_callback([this]() { this->trigger(); });
+  explicit StateEnterTrigger(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {
+    alarm_control_panel->add_on_state_callback([this]() {
+      if (this->alarm_control_panel_->get_state() == State)
+        this->trigger();
+    });
   }
+
+ protected:
+  AlarmControlPanel *alarm_control_panel_;
 };
 
-class ArmingTrigger : public Trigger<> {
- public:
-  explicit ArmingTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_arming_callback([this]() { this->trigger(); });
-  }
-};
-
-class PendingTrigger : public Trigger<> {
- public:
-  explicit PendingTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_pending_callback([this]() { this->trigger(); });
-  }
-};
-
-class ArmedHomeTrigger : public Trigger<> {
- public:
-  explicit ArmedHomeTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_armed_home_callback([this]() { this->trigger(); });
-  }
-};
-
-class ArmedNightTrigger : public Trigger<> {
- public:
-  explicit ArmedNightTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_armed_night_callback([this]() { this->trigger(); });
-  }
-};
-
-class ArmedAwayTrigger : public Trigger<> {
- public:
-  explicit ArmedAwayTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_armed_away_callback([this]() { this->trigger(); });
-  }
-};
-
-class DisarmedTrigger : public Trigger<> {
- public:
-  explicit DisarmedTrigger(AlarmControlPanel *alarm_control_panel) {
-    alarm_control_panel->add_on_disarmed_callback([this]() { this->trigger(); });
-  }
-};
+// Type aliases for state-specific triggers
+using TriggeredTrigger = StateEnterTrigger<ACP_STATE_TRIGGERED>;
+using ArmingTrigger = StateEnterTrigger<ACP_STATE_ARMING>;
+using PendingTrigger = StateEnterTrigger<ACP_STATE_PENDING>;
+using ArmedHomeTrigger = StateEnterTrigger<ACP_STATE_ARMED_HOME>;
+using ArmedNightTrigger = StateEnterTrigger<ACP_STATE_ARMED_NIGHT>;
+using ArmedAwayTrigger = StateEnterTrigger<ACP_STATE_ARMED_AWAY>;
+using DisarmedTrigger = StateEnterTrigger<ACP_STATE_DISARMED>;
 
+/// Trigger when leaving TRIGGERED state (alarm cleared)
 class ClearedTrigger : public Trigger<> {
  public:
   explicit ClearedTrigger(AlarmControlPanel *alarm_control_panel) {
@@ -69,6 +44,7 @@ class ClearedTrigger : public Trigger<> {
   }
 };
 
+/// Trigger on chime event (zone opened while disarmed)
 class ChimeTrigger : public Trigger<> {
  public:
   explicit ChimeTrigger(AlarmControlPanel *alarm_control_panel) {
@@ -76,6 +52,7 @@ class ChimeTrigger : public Trigger<> {
   }
 };
 
+/// Trigger on ready state change
 class ReadyTrigger : public Trigger<> {
  public:
   explicit ReadyTrigger(AlarmControlPanel *alarm_control_panel) {
@@ -89,15 +66,7 @@ template<typename... Ts> class ArmAwayAction : public Action<Ts...> {
 
   TEMPLATABLE_VALUE(std::string, code)
 
-  void play(Ts... x) override {
-    auto call = this->alarm_control_panel_->make_call();
-    auto code = this->code_.optional_value(x...);
-    if (code.has_value()) {
-      call.set_code(code.value());
-    }
-    call.arm_away();
-    call.perform();
-  }
+  void play(const Ts &...x) override { this->alarm_control_panel_->arm_away(this->code_.optional_value(x...)); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -109,15 +78,7 @@ template<typename... Ts> class ArmHomeAction : public Action<Ts...> {
 
   TEMPLATABLE_VALUE(std::string, code)
 
-  void play(Ts... x) override {
-    auto call = this->alarm_control_panel_->make_call();
-    auto code = this->code_.optional_value(x...);
-    if (code.has_value()) {
-      call.set_code(code.value());
-    }
-    call.arm_home();
-    call.perform();
-  }
+  void play(const Ts &...x) override { this->alarm_control_panel_->arm_home(this->code_.optional_value(x...)); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -129,15 +90,7 @@ template<typename... Ts> class ArmNightAction : public Action<Ts...> {
 
   TEMPLATABLE_VALUE(std::string, code)
 
-  void play(Ts... x) override {
-    auto call = this->alarm_control_panel_->make_call();
-    auto code = this->code_.optional_value(x...);
-    if (code.has_value()) {
-      call.set_code(code.value());
-    }
-    call.arm_night();
-    call.perform();
-  }
+  void play(const Ts &...x) override { this->alarm_control_panel_->arm_night(this->code_.optional_value(x...)); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -149,7 +102,7 @@ template<typename... Ts> class DisarmAction : public Action<Ts...> {
 
   TEMPLATABLE_VALUE(std::string, code)
 
-  void play(Ts... x) override { this->alarm_control_panel_->disarm(this->code_.optional_value(x...)); }
+  void play(const Ts &...x) override { this->alarm_control_panel_->disarm(this->code_.optional_value(x...)); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -159,7 +112,7 @@ template<typename... Ts> class PendingAction : public Action<Ts...> {
  public:
   explicit PendingAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
 
-  void play(Ts... x) override { this->alarm_control_panel_->make_call().pending().perform(); }
+  void play(const Ts &...x) override { this->alarm_control_panel_->make_call().pending().perform(); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -169,7 +122,7 @@ template<typename... Ts> class TriggeredAction : public Action<Ts...> {
  public:
   explicit TriggeredAction(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {}
 
-  void play(Ts... x) override { this->alarm_control_panel_->make_call().triggered().perform(); }
+  void play(const Ts &...x) override { this->alarm_control_panel_->make_call().triggered().perform(); }
 
  protected:
   AlarmControlPanel *alarm_control_panel_;
@@ -178,7 +131,7 @@ template<typename... Ts> class TriggeredAction : public Action<Ts...> {
 template<typename... Ts> class AlarmControlPanelCondition : public Condition<Ts...> {
  public:
   AlarmControlPanelCondition(AlarmControlPanel *parent) : parent_(parent) {}
-  bool check(Ts... x) override {
+  bool check(const Ts &...x) override {
     return this->parent_->is_state_armed(this->parent_->get_state()) ||
            this->parent_->get_state() == ACP_STATE_PENDING || this->parent_->get_state() == ACP_STATE_TRIGGERED;
   }
@@ -187,5 +140,4 @@ template<typename... Ts> class AlarmControlPanelCondition : public Condition<Ts.
   AlarmControlPanel *parent_;
 };
 
-}  // namespace alarm_control_panel
-}  // namespace esphome
+}  // namespace esphome::alarm_control_panel

esphome/components/alpha3/alpha3.cpp

@@ -56,13 +56,13 @@ bool Alpha3::is_current_response_type_(const uint8_t *response_type) {
 
 void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   if (this->response_offset_ >= this->response_length_) {
-    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str());
     if (length < GENI_RESPONSE_HEADER_LENGTH) {
-      ESP_LOGW(TAG, "[%s] response to short", this->parent_->address_str().c_str());
+      ESP_LOGW(TAG, "[%s] response too short", this->parent_->address_str());
       return;
     }
     if (response[0] != 36 || response[2] != 248 || response[3] != 231 || response[4] != 10) {
-      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str().c_str(),
+      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str(),
                response[0], response[1], response[2], response[3], response[4]);
       return;
     }
@@ -77,11 +77,11 @@ void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   };
 
   if (this->is_current_response_type_(GENI_RESPONSE_TYPE_FLOW_HEAD)) {
-    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_FLOW_OFFSET, this->flow_sensor_, 3600.0F);
     extract_publish_sensor_value(GENI_RESPONSE_HEAD_OFFSET, this->head_sensor_, .0001F);
   } else if (this->is_current_response_type_(GENI_RESPONSE_TYPE_POWER)) {
-    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_POWER_OFFSET, this->power_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_CURRENT_OFFSET, this->current_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_MOTOR_SPEED_OFFSET, this->speed_sensor_, 1.0F);
@@ -100,7 +100,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
       if (param->open.status == ESP_GATT_OK) {
         this->response_offset_ = 0;
         this->response_length_ = 0;
-        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str().c_str());
+        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str());
       }
       break;
     }
@@ -132,7 +132,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(ALPHA3_GENI_SERVICE_UUID, ALPHA3_GENI_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
-        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str().c_str());
+        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str());
         break;
       }
       auto status = esp_ble_gattc_register_for_notify(this->parent_->get_gattc_if(), this->parent_->get_remote_bda(),
@@ -164,12 +164,12 @@ void Alpha3::send_request_(uint8_t *request, size_t len) {
       esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->geni_handle_, len,
                                request, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
   if (status)
-    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
 }
 
 void Alpha3::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
 

esphome/components/alpha3/alpha3.h

@@ -15,10 +15,8 @@ namespace alpha3 {
 namespace espbt = esphome::esp32_ble_tracker;
 
 static const espbt::ESPBTUUID ALPHA3_GENI_SERVICE_UUID = espbt::ESPBTUUID::from_uint16(0xfe5d);
-static const espbt::ESPBTUUID ALPHA3_GENI_CHARACTERISTIC_UUID =
-    espbt::ESPBTUUID::from_raw({static_cast<char>(0xa9), 0x7b, static_cast<char>(0xb8), static_cast<char>(0x85), 0x0,
-                                0x1a, 0x28, static_cast<char>(0xaa), 0x2a, 0x43, 0x6e, 0x3, static_cast<char>(0xd1),
-                                static_cast<char>(0xff), static_cast<char>(0x9c), static_cast<char>(0x85)});
+static const espbt::ESPBTUUID ALPHA3_GENI_CHARACTERISTIC_UUID = espbt::ESPBTUUID::from_raw(
+    {0xa9, 0x7b, 0xb8, 0x85, 0x00, 0x1a, 0x28, 0xaa, 0x2a, 0x43, 0x6e, 0x03, 0xd1, 0xff, 0x9c, 0x85});
 static const int16_t GENI_RESPONSE_HEADER_LENGTH = 13;
 static const size_t GENI_RESPONSE_TYPE_LENGTH = 8;
 

esphome/components/am2315c/am2315c.cpp

@@ -176,7 +176,5 @@ void AM2315C::dump_config() {
   LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
 }
 
-float AM2315C::get_setup_priority() const { return setup_priority::DATA; }
-
 }  // namespace am2315c
 }  // namespace esphome

esphome/components/am2315c/am2315c.h

@@ -33,7 +33,6 @@ class AM2315C : public PollingComponent, public i2c::I2CDevice {
   void dump_config() override;
   void update() override;
   void setup() override;
-  float get_setup_priority() const override;
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { this->temperature_sensor_ = temperature_sensor; }
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { this->humidity_sensor_ = humidity_sensor; }

esphome/components/am2320/am2320.cpp

@@ -51,7 +51,6 @@ void AM2320Component::dump_config() {
   LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
   LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
 }
-float AM2320Component::get_setup_priority() const { return setup_priority::DATA; }
 
 bool AM2320Component::read_bytes_(uint8_t a_register, uint8_t *data, uint8_t len, uint32_t conversion) {
   if (!this->write_bytes(a_register, data, 2)) {

esphome/components/am2320/am2320.h

@@ -11,7 +11,6 @@ class AM2320Component : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
-  float get_setup_priority() const override;
   void update() override;
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }

esphome/components/am43/am43_base.cpp

@@ -1,21 +1,12 @@
 #include "am43_base.h"
+#include "esphome/core/helpers.h"
 #include <cstring>
-#include <cstdio>
 
 namespace esphome {
 namespace am43 {
 
 const uint8_t START_PACKET[5] = {0x00, 0xff, 0x00, 0x00, 0x9a};
 
-std::string pkt_to_hex(const uint8_t *data, uint16_t len) {
-  char buf[64];
-  memset(buf, 0, 64);
-  for (int i = 0; i < len; i++)
-    sprintf(&buf[i * 2], "%02x", data[i]);
-  std::string ret = buf;
-  return ret;
-}
-
 Am43Packet *Am43Encoder::get_battery_level_request() {
   uint8_t data = 0x1;
   return this->encode_(0xA2, &data, 1);
@@ -73,7 +64,9 @@ Am43Packet *Am43Encoder::encode_(uint8_t command, uint8_t *data, uint8_t length)
   memcpy(&this->packet_.data[7], data, length);
   this->packet_.length = length + 7;
   this->checksum_();
-  ESP_LOGV("am43", "ENC(%d): 0x%s", packet_.length, pkt_to_hex(packet_.data, packet_.length).c_str());
+  char hex_buf[format_hex_size(sizeof(this->packet_.data))];
+  ESP_LOGV("am43", "ENC(%d): 0x%s", this->packet_.length,
+           format_hex_to(hex_buf, this->packet_.data, this->packet_.length));
   return &this->packet_;
 }
 
@@ -88,7 +81,8 @@ void Am43Decoder::decode(const uint8_t *data, uint16_t length) {
   this->has_set_state_response_ = false;
   this->has_position_ = false;
   this->has_pin_response_ = false;
-  ESP_LOGV("am43", "DEC(%d): 0x%s", length, pkt_to_hex(data, length).c_str());
+  char hex_buf[format_hex_size(24)];  // Max expected packet size
+  ESP_LOGV("am43", "DEC(%d): 0x%s", length, format_hex_to(hex_buf, data, length));
 
   if (length < 2 || data[0] != 0x9a)
     return;

esphome/components/am43/sensor/am43_sensor.cpp

@@ -44,11 +44,9 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
       auto *chr = this->parent_->get_characteristic(AM43_SERVICE_UUID, AM43_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
         if (this->parent_->get_characteristic(AM43_TUYA_SERVICE_UUID, AM43_TUYA_CHARACTERISTIC_UUID) != nullptr) {
-          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.", this->parent_->address_str());
         } else {
-          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?", this->parent_->address_str());
         }
         break;
       }
@@ -82,8 +80,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
                                                  this->char_handle_, packet->length, packet->data,
                                                  ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
         this->current_sensor_ = 0;
@@ -97,7 +94,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
 
 void Am43::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
   if (this->current_sensor_ == 0) {
@@ -107,7 +104,7 @@ void Am43::update() {
           esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                    packet->length, packet->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
       if (status) {
-        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
       }
     }
     this->current_sensor_++;

esphome/components/analog_threshold/analog_threshold_binary_sensor.cpp

@@ -12,10 +12,11 @@ void AnalogThresholdBinarySensor::setup() {
   // TRUE state is defined to be when sensor is >= threshold
   // so when undefined sensor value initialize to FALSE
   if (std::isnan(sensor_value)) {
+    this->raw_state_ = false;
     this->publish_initial_state(false);
   } else {
-    this->publish_initial_state(sensor_value >=
-                                (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f);
+    this->raw_state_ = sensor_value >= (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f;
+    this->publish_initial_state(this->raw_state_);
   }
 }
 
@@ -25,8 +26,10 @@ void AnalogThresholdBinarySensor::set_sensor(sensor::Sensor *analog_sensor) {
   this->sensor_->add_on_state_callback([this](float sensor_value) {
     // if there is an invalid sensor reading, ignore the change and keep the current state
     if (!std::isnan(sensor_value)) {
-      this->publish_state(sensor_value >=
-                          (this->state ? this->lower_threshold_.value() : this->upper_threshold_.value()));
+      // Use raw_state_ for hysteresis logic, not this->state which is post-filter
+      this->raw_state_ =
+          sensor_value >= (this->raw_state_ ? this->lower_threshold_.value() : this->upper_threshold_.value());
+      this->publish_state(this->raw_state_);
     }
   });
 }

esphome/components/analog_threshold/analog_threshold_binary_sensor.h

@@ -20,6 +20,7 @@ class AnalogThresholdBinarySensor : public Component, public binary_sensor::Bina
   sensor::Sensor *sensor_{nullptr};
   TemplatableValue<float> upper_threshold_{};
   TemplatableValue<float> lower_threshold_{};
+  bool raw_state_{false};  // Pre-filter state for hysteresis logic
 };
 
 }  // namespace analog_threshold

esphome/components/animation/animation.h

@@ -39,7 +39,7 @@ class Animation : public image::Image {
 template<typename... Ts> class AnimationNextFrameAction : public Action<Ts...> {
  public:
   AnimationNextFrameAction(Animation *parent) : parent_(parent) {}
-  void play(Ts... x) override { this->parent_->next_frame(); }
+  void play(const Ts &...x) override { this->parent_->next_frame(); }
 
  protected:
   Animation *parent_;
@@ -48,7 +48,7 @@ template<typename... Ts> class AnimationNextFrameAction : public Action<Ts...> {
 template<typename... Ts> class AnimationPrevFrameAction : public Action<Ts...> {
  public:
   AnimationPrevFrameAction(Animation *parent) : parent_(parent) {}
-  void play(Ts... x) override { this->parent_->prev_frame(); }
+  void play(const Ts &...x) override { this->parent_->prev_frame(); }
 
  protected:
   Animation *parent_;
@@ -58,7 +58,7 @@ template<typename... Ts> class AnimationSetFrameAction : public Action<Ts...> {
  public:
   AnimationSetFrameAction(Animation *parent) : parent_(parent) {}
   TEMPLATABLE_VALUE(uint16_t, frame)
-  void play(Ts... x) override { this->parent_->set_frame(this->frame_.value(x...)); }
+  void play(const Ts &...x) override { this->parent_->set_frame(this->frame_.value(x...)); }
 
  protected:
   Animation *parent_;

esphome/components/anova/anova.cpp

@@ -42,7 +42,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
   if (call.get_target_temperature().has_value()) {
@@ -51,7 +51,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
 }
@@ -67,8 +67,10 @@ void Anova::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(ANOVA_SERVICE_UUID, ANOVA_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
-        ESP_LOGW(TAG, "[%s] No control service found at device, not an Anova..?", this->get_name().c_str());
-        ESP_LOGW(TAG, "[%s] Note, this component does not currently support Anova Nano.", this->get_name().c_str());
+        ESP_LOGW(TAG,
+                 "[%s] No control service found at device, not an Anova..?\n"
+                 "[%s] Note, this component does not currently support Anova Nano.",
+                 this->get_name().c_str(), this->get_name().c_str());
         break;
       }
       this->char_handle_ = chr->handle;
@@ -124,8 +126,7 @@ void Anova::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_
               esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                        pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
       }
@@ -150,7 +151,7 @@ void Anova::update() {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
     this->current_request_++;
   }

esphome/components/anova/anova.h

@@ -28,7 +28,7 @@ class Anova : public climate::Climate, public esphome::ble_client::BLEClientNode
   void dump_config() override;
   climate::ClimateTraits traits() override {
     auto traits = climate::ClimateTraits();
-    traits.set_supports_current_temperature(true);
+    traits.add_feature_flags(climate::CLIMATE_SUPPORTS_CURRENT_TEMPERATURE);
     traits.set_supported_modes({climate::CLIMATE_MODE_OFF, climate::ClimateMode::CLIMATE_MODE_HEAT});
     traits.set_visual_min_temperature(25.0);
     traits.set_visual_max_temperature(100.0);

esphome/components/anova/anova_base.cpp

@@ -18,31 +18,31 @@ AnovaPacket *AnovaCodec::clean_packet_() {
 
 AnovaPacket *AnovaCodec::get_read_device_status_request() {
   this->current_query_ = READ_DEVICE_STATUS;
-  sprintf((char *) this->packet_.data, "%s", CMD_READ_DEVICE_STATUS);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_READ_DEVICE_STATUS);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_read_target_temp_request() {
   this->current_query_ = READ_TARGET_TEMPERATURE;
-  sprintf((char *) this->packet_.data, "%s", CMD_READ_TARGET_TEMP);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_READ_TARGET_TEMP);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_read_current_temp_request() {
   this->current_query_ = READ_CURRENT_TEMPERATURE;
-  sprintf((char *) this->packet_.data, "%s", CMD_READ_CURRENT_TEMP);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_READ_CURRENT_TEMP);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_read_unit_request() {
   this->current_query_ = READ_UNIT;
-  sprintf((char *) this->packet_.data, "%s", CMD_READ_UNIT);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_READ_UNIT);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_read_data_request() {
   this->current_query_ = READ_DATA;
-  sprintf((char *) this->packet_.data, "%s", CMD_READ_DATA);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_READ_DATA);
   return this->clean_packet_();
 }
 
@@ -50,25 +50,25 @@ AnovaPacket *AnovaCodec::get_set_target_temp_request(float temperature) {
   this->current_query_ = SET_TARGET_TEMPERATURE;
   if (this->fahrenheit_)
     temperature = ctof(temperature);
-  sprintf((char *) this->packet_.data, CMD_SET_TARGET_TEMP, temperature);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), CMD_SET_TARGET_TEMP, temperature);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_set_unit_request(char unit) {
   this->current_query_ = SET_UNIT;
-  sprintf((char *) this->packet_.data, CMD_SET_TEMP_UNIT, unit);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), CMD_SET_TEMP_UNIT, unit);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_start_request() {
   this->current_query_ = START;
-  sprintf((char *) this->packet_.data, CMD_START);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_START);
   return this->clean_packet_();
 }
 
 AnovaPacket *AnovaCodec::get_stop_request() {
   this->current_query_ = STOP;
-  sprintf((char *) this->packet_.data, CMD_STOP);
+  snprintf((char *) this->packet_.data, sizeof(this->packet_.data), "%s", CMD_STOP);
   return this->clean_packet_();
 }
 

esphome/components/apds9960/apds9960.cpp

@@ -384,7 +384,6 @@ void APDS9960::process_dataset_(int up, int down, int left, int right) {
     }
   }
 }
-float APDS9960::get_setup_priority() const { return setup_priority::DATA; }
 bool APDS9960::is_proximity_enabled_() const {
   return
 #ifdef USE_SENSOR

esphome/components/apds9960/apds9960.h

@@ -32,7 +32,6 @@ class APDS9960 : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
-  float get_setup_priority() const override;
   void update() override;
   void loop() override;
 

esphome/components/api/__init__.py

@@ -4,6 +4,7 @@ import logging
 from esphome import automation
 from esphome.automation import Condition
 import esphome.codegen as cg
+from esphome.components.logger import request_log_listener
 from esphome.config_helpers import get_logger_level
 import esphome.config_validation as cv
 from esphome.const import (
@@ -27,12 +28,13 @@ from esphome.const import (
     CONF_SERVICE,
     CONF_SERVICES,
     CONF_TAG,
+    CONF_THEN,
     CONF_TRIGGER_ID,
     CONF_VARIABLES,
 )
-from esphome.core import CORE, ID, CoroPriority, coroutine_with_priority
-from esphome.cpp_generator import TemplateArgsType
-from esphome.types import ConfigType
+from esphome.core import CORE, ID, CoroPriority, EsphomeError, coroutine_with_priority
+from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.types import ConfigFragmentType, ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -63,18 +65,24 @@ HomeAssistantActionResponseTrigger = api_ns.class_(
     "HomeAssistantActionResponseTrigger", automation.Trigger
 )
 APIConnectedCondition = api_ns.class_("APIConnectedCondition", Condition)
+APIRespondAction = api_ns.class_("APIRespondAction", automation.Action)
+APIUnregisterServiceCallAction = api_ns.class_(
+    "APIUnregisterServiceCallAction", automation.Action
+)
 
 UserServiceTrigger = api_ns.class_("UserServiceTrigger", automation.Trigger)
 ListEntitiesServicesArgument = api_ns.class_("ListEntitiesServicesArgument")
-SERVICE_ARG_NATIVE_TYPES = {
-    "bool": bool,
+SERVICE_ARG_NATIVE_TYPES: dict[str, MockObj] = {
+    "bool": cg.bool_,
     "int": cg.int32,
-    "float": float,
+    "float": cg.float_,
     "string": cg.std_string,
-    "bool[]": cg.std_vector.template(bool),
-    "int[]": cg.std_vector.template(cg.int32),
-    "float[]": cg.std_vector.template(float),
-    "string[]": cg.std_vector.template(cg.std_string),
+    "bool[]": cg.FixedVector.template(cg.bool_).operator("const").operator("ref"),
+    "int[]": cg.FixedVector.template(cg.int32).operator("const").operator("ref"),
+    "float[]": cg.FixedVector.template(cg.float_).operator("const").operator("ref"),
+    "string[]": cg.FixedVector.template(cg.std_string)
+    .operator("const")
+    .operator("ref"),
 }
 CONF_ENCRYPTION = "encryption"
 CONF_BATCH_DELAY = "batch_delay"
@@ -83,6 +91,7 @@ CONF_HOMEASSISTANT_SERVICES = "homeassistant_services"
 CONF_HOMEASSISTANT_STATES = "homeassistant_states"
 CONF_LISTEN_BACKLOG = "listen_backlog"
 CONF_MAX_SEND_QUEUE = "max_send_queue"
+CONF_STATE_SUBSCRIPTION_ONLY = "state_subscription_only"
 
 
 def validate_encryption_key(value):
@@ -99,6 +108,85 @@ def validate_encryption_key(value):
     return value
 
 
+CONF_SUPPORTS_RESPONSE = "supports_response"
+
+# Enum values in api::enums namespace
+enums_ns = api_ns.namespace("enums")
+SUPPORTS_RESPONSE_OPTIONS = {
+    "none": enums_ns.SUPPORTS_RESPONSE_NONE,
+    "optional": enums_ns.SUPPORTS_RESPONSE_OPTIONAL,
+    "only": enums_ns.SUPPORTS_RESPONSE_ONLY,
+    "status": enums_ns.SUPPORTS_RESPONSE_STATUS,
+}
+
+
+def _auto_detect_supports_response(config: ConfigType) -> ConfigType:
+    """Auto-detect supports_response based on api.respond usage in the action's then block.
+
+    - If api.respond with data found: set to "optional" (unless user explicitly set)
+    - If api.respond without data found: set to "status" (unless user explicitly set)
+    - If no api.respond found: set to "none" (unless user explicitly set)
+    """
+
+    def scan_actions(items: ConfigFragmentType) -> tuple[bool, bool]:
+        """Recursively scan actions for api.respond.
+
+        Returns: (found, has_data) tuple - has_data is True if ANY api.respond has data
+        """
+        found_any = False
+        has_data_any = False
+
+        if isinstance(items, list):
+            for item in items:
+                found, has_data = scan_actions(item)
+                if found:
+                    found_any = True
+                    has_data_any = has_data_any or has_data
+        elif isinstance(items, dict):
+            # Check if this is an api.respond action
+            if "api.respond" in items:
+                respond_config = items["api.respond"]
+                has_data = isinstance(respond_config, dict) and "data" in respond_config
+                return True, has_data
+            # Recursively check all values
+            for value in items.values():
+                found, has_data = scan_actions(value)
+                if found:
+                    found_any = True
+                    has_data_any = has_data_any or has_data
+
+        return found_any, has_data_any
+
+    then = config.get(CONF_THEN, [])
+    action_name = config.get(CONF_ACTION)
+    found, has_data = scan_actions(then)
+
+    # If user explicitly set supports_response, validate and use that
+    if CONF_SUPPORTS_RESPONSE in config:
+        user_value = config[CONF_SUPPORTS_RESPONSE]
+        # Validate: "only" requires api.respond with data
+        if user_value == "only" and not has_data:
+            raise cv.Invalid(
+                f"Action '{action_name}' has supports_response=only but no api.respond "
+                "action with 'data:' was found. Use 'status' for responses without data, "
+                "or add 'data:' to your api.respond action."
+            )
+        return config
+
+    # Auto-detect based on api.respond usage
+    if found:
+        config[CONF_SUPPORTS_RESPONSE] = "optional" if has_data else "status"
+    else:
+        config[CONF_SUPPORTS_RESPONSE] = "none"
+
+    return config
+
+
+def _validate_supports_response(value):
+    """Validate supports_response after auto-detection has set the value."""
+    return cv.enum(SUPPORTS_RESPONSE_OPTIONS, lower=True)(value)
+
+
 ACTIONS_SCHEMA = automation.validate_automation(
     {
         cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(UserServiceTrigger),
@@ -109,10 +197,20 @@ ACTIONS_SCHEMA = automation.validate_automation(
                 cv.validate_id_name: cv.one_of(*SERVICE_ARG_NATIVE_TYPES, lower=True),
             }
         ),
+        # No default - auto-detected by _auto_detect_supports_response
+        cv.Optional(CONF_SUPPORTS_RESPONSE): cv.enum(
+            SUPPORTS_RESPONSE_OPTIONS, lower=True
+        ),
     },
     cv.All(
         cv.has_exactly_one_key(CONF_SERVICE, CONF_ACTION),
         cv.rename_key(CONF_SERVICE, CONF_ACTION),
+        _auto_detect_supports_response,
+        # Re-validate supports_response after auto-detection sets it
+        cv.Schema(
+            {cv.Required(CONF_SUPPORTS_RESPONSE): _validate_supports_response},
+            extra=cv.ALLOW_EXTRA,
+        ),
     ),
 )
 
@@ -129,29 +227,14 @@ def _encryption_schema(config):
     return ENCRYPTION_SCHEMA(config)
 
 
-def _validate_api_config(config: ConfigType) -> ConfigType:
-    """Validate API configuration with mutual exclusivity check and deprecation warning."""
-    # Check if both password and encryption are configured
-    has_password = CONF_PASSWORD in config and config[CONF_PASSWORD]
-    has_encryption = CONF_ENCRYPTION in config
-
-    if has_password and has_encryption:
-        raise cv.Invalid(
-            "The 'password' and 'encryption' options are mutually exclusive. "
-            "The API client only supports one authentication method at a time. "
-            "Please remove one of them. "
-            "Note: 'password' authentication is deprecated and will be removed in version 2026.1.0. "
-            "We strongly recommend using 'encryption' instead for better security."
-        )
-
-    # Warn about password deprecation
-    if has_password:
-        _LOGGER.warning(
-            "API 'password' authentication has been deprecated since May 2022 and will be removed in version 2026.1.0. "
-            "Please migrate to the 'encryption' configuration. "
-            "See https://esphome.io/components/api.html#configuration-variables"
-        )
+def _consume_api_sockets(config: ConfigType) -> ConfigType:
+    """Register socket needs for API component."""
+    from esphome.components import socket
 
+    # API needs 1 listening socket + typically 3 concurrent client connections
+    # (not max_connections, which is the upper limit rarely reached)
+    sockets_needed = 1 + 3
+    socket.consume_sockets(sockets_needed, "api")(config)
     return config
 
 
@@ -160,7 +243,17 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): cv.declare_id(APIServer),
             cv.Optional(CONF_PORT, default=6053): cv.port,
-            cv.Optional(CONF_PASSWORD, default=""): cv.string_strict,
+            # Removed in 2026.1.0 - kept to provide helpful error message
+            cv.Optional(CONF_PASSWORD): cv.invalid(
+                "The 'password' option has been removed in ESPHome 2026.1.0.\n"
+                "Password authentication was deprecated in May 2022.\n"
+                "Please migrate to encryption for secure API communication:\n\n"
+                "api:\n"
+                "  encryption:\n"
+                "    key: !secret api_encryption_key\n\n"
+                "Generate a key with: openssl rand -base64 32\n"
+                "Or visit https://esphome.io/components/api/#configuration-variables"
+            ),
             cv.Optional(
                 CONF_REBOOT_TIMEOUT, default="15min"
             ): cv.positive_time_period_milliseconds,
@@ -214,6 +307,7 @@ CONFIG_SCHEMA = cv.All(
                 esp32=8,  # More RAM, can buffer more
                 rp2040=5,  # Limited RAM
                 bk72xx=8,  # Moderate RAM
+                nrf52=8,  # Moderate RAM
                 rtl87xx=8,  # Moderate RAM
                 host=16,  # Abundant resources
                 ln882x=8,  # Moderate RAM
@@ -221,19 +315,22 @@ CONFIG_SCHEMA = cv.All(
         }
     ).extend(cv.COMPONENT_SCHEMA),
     cv.rename_key(CONF_SERVICES, CONF_ACTIONS),
-    _validate_api_config,
+    _consume_api_sockets,
 )
 
 
 @coroutine_with_priority(CoroPriority.WEB)
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 
+    # Track controller registration for StaticVector sizing
+    CORE.register_controller()
+
+    # Request a log listener slot for API log streaming
+    request_log_listener()
+
     cg.add(var.set_port(config[CONF_PORT]))
-    if config[CONF_PASSWORD]:
-        cg.add_define("USE_API_PASSWORD")
-        cg.add(var.set_password(config[CONF_PASSWORD]))
     cg.add(var.set_reboot_timeout(config[CONF_REBOOT_TIMEOUT]))
     cg.add(var.set_batch_delay(config[CONF_BATCH_DELAY]))
     if CONF_LISTEN_BACKLOG in config:
@@ -242,9 +339,13 @@ async def to_code(config):
         cg.add(var.set_max_connections(config[CONF_MAX_CONNECTIONS]))
     cg.add_define("API_MAX_SEND_QUEUE", config[CONF_MAX_SEND_QUEUE])
 
-    # Set USE_API_SERVICES if any services are enabled
+    # Set USE_API_USER_DEFINED_ACTIONS if any services are enabled
     if config.get(CONF_ACTIONS) or config[CONF_CUSTOM_SERVICES]:
-        cg.add_define("USE_API_SERVICES")
+        cg.add_define("USE_API_USER_DEFINED_ACTIONS")
+
+    # Set USE_API_CUSTOM_SERVICES if external components need dynamic service registration
+    if config[CONF_CUSTOM_SERVICES]:
+        cg.add_define("USE_API_CUSTOM_SERVICES")
 
     if config[CONF_HOMEASSISTANT_SERVICES]:
         cg.add_define("USE_API_HOMEASSISTANT_SERVICES")
@@ -253,21 +354,66 @@ async def to_code(config):
         cg.add_define("USE_API_HOMEASSISTANT_STATES")
 
     if actions := config.get(CONF_ACTIONS, []):
+        # Collect all triggers first, then register all at once with initializer_list
+        triggers: list[cg.Pvariable] = []
         for conf in actions:
-            template_args = []
-            func_args = []
-            service_arg_names = []
+            func_args: list[tuple[MockObj, str]] = []
+            service_template_args: list[MockObj] = []  # User service argument types
+
+            # Determine supports_response mode
+            # cv.enum returns the key with enum_value attribute containing the MockObj
+            supports_response_key = conf[CONF_SUPPORTS_RESPONSE]
+            supports_response = supports_response_key.enum_value
+            is_none = supports_response_key == "none"
+            is_optional = supports_response_key == "optional"
+
+            # Add call_id and return_response based on supports_response mode
+            # These must match the C++ Trigger template arguments
+            # - none: no extra args
+            # - status: call_id only (for reporting success/error without data)
+            # - only: call_id only (response always expected with data)
+            # - optional: call_id + return_response (client decides)
+            if not is_none:
+                # call_id is present for "optional", "only", and "status"
+                func_args.append((cg.uint32, "call_id"))
+                # return_response only present for "optional"
+                if is_optional:
+                    func_args.append((cg.bool_, "return_response"))
+
+            service_arg_names: list[str] = []
             for name, var_ in conf[CONF_VARIABLES].items():
                 native = SERVICE_ARG_NATIVE_TYPES[var_]
-                template_args.append(native)
+                service_template_args.append(native)
                 func_args.append((native, name))
                 service_arg_names.append(name)
-            templ = cg.TemplateArguments(*template_args)
+            # Template args: supports_response mode, then user service arg types
+            templ = cg.TemplateArguments(supports_response, *service_template_args)
             trigger = cg.new_Pvariable(
-                conf[CONF_TRIGGER_ID], templ, conf[CONF_ACTION], service_arg_names
+                conf[CONF_TRIGGER_ID],
+                templ,
+                conf[CONF_ACTION],
+                service_arg_names,
             )
-            cg.add(var.register_user_service(trigger))
-            await automation.build_automation(trigger, func_args, conf)
+            triggers.append(trigger)
+            auto = await automation.build_automation(trigger, func_args, conf)
+
+            # For non-none response modes, automatically append unregister action
+            # This ensures the call is unregistered after all actions complete (including async ones)
+            if not is_none:
+                arg_types = [arg[0] for arg in func_args]
+                action_templ = cg.TemplateArguments(*arg_types)
+                unregister_id = ID(
+                    f"{conf[CONF_TRIGGER_ID]}__unregister",
+                    is_declaration=True,
+                    type=APIUnregisterServiceCallAction.template(action_templ),
+                )
+                unregister_action = cg.new_Pvariable(
+                    unregister_id,
+                    var,
+                )
+                cg.add(auto.add_actions([unregister_action]))
+        # Register all services at once - single allocation, no reallocations
+        cg.add(var.initialize_user_services(triggers))
 
     if CONF_ON_CLIENT_CONNECTED in config:
         cg.add_define("USE_API_CLIENT_CONNECTED_TRIGGER")
@@ -511,9 +657,98 @@ async def homeassistant_tag_scanned_to_code(config, action_id, template_arg, arg
     return var
 
 
-@automation.register_condition("api.connected", APIConnectedCondition, {})
+CONF_SUCCESS = "success"
+CONF_ERROR_MESSAGE = "error_message"
+
+
+def _validate_api_respond_data(config):
+    """Set flag during validation so AUTO_LOAD can include json component."""
+    if CONF_DATA in config:
+        CORE.data.setdefault(DOMAIN, {})[CONF_CAPTURE_RESPONSE] = True
+    return config
+
+
+API_RESPOND_ACTION_SCHEMA = cv.All(
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.use_id(APIServer),
+            cv.Optional(CONF_SUCCESS, default=True): cv.templatable(cv.boolean),
+            cv.Optional(CONF_ERROR_MESSAGE, default=""): cv.templatable(cv.string),
+            cv.Optional(CONF_DATA): cv.lambda_,
+        }
+    ),
+    _validate_api_respond_data,
+)
+
+
+@automation.register_action(
+    "api.respond",
+    APIRespondAction,
+    API_RESPOND_ACTION_SCHEMA,
+)
+async def api_respond_to_code(
+    config: ConfigType,
+    action_id: ID,
+    template_arg: cg.TemplateArguments,
+    args: TemplateArgsType,
+) -> MockObj:
+    # Validate that api.respond is used inside an API action context.
+    # We can't easily validate this at config time since the schema validation
+    # doesn't have access to the parent action context. Validating here in to_code
+    # is still much better than a cryptic C++ compile error.
+    has_call_id = any(name == "call_id" for _, name in args)
+    if not has_call_id:
+        raise EsphomeError(
+            "api.respond can only be used inside an API action's 'then:' block. "
+            "The 'call_id' variable is required to send a response."
+        )
+
+    cg.add_define("USE_API_USER_DEFINED_ACTION_RESPONSES")
+    serv = await cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, serv)
+
+    # Check if we're in optional mode (has return_response arg)
+    is_optional = any(name == "return_response" for _, name in args)
+    if is_optional:
+        cg.add(var.set_is_optional_mode(True))
+
+    templ = await cg.templatable(config[CONF_SUCCESS], args, cg.bool_)
+    cg.add(var.set_success(templ))
+
+    templ = await cg.templatable(config[CONF_ERROR_MESSAGE], args, cg.std_string)
+    cg.add(var.set_error_message(templ))
+
+    if CONF_DATA in config:
+        cg.add_define("USE_API_USER_DEFINED_ACTION_RESPONSES_JSON")
+        # Lambda populates the JsonObject root - no return value needed
+        lambda_ = await cg.process_lambda(
+            config[CONF_DATA],
+            args + [(cg.JsonObject, "root")],
+            return_type=cg.void,
+        )
+        cg.add(var.set_data(lambda_))
+
+    return var
+
+
+API_CONNECTED_CONDITION_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.use_id(APIServer),
+        cv.Optional(CONF_STATE_SUBSCRIPTION_ONLY, default=False): cv.templatable(
+            cv.boolean
+        ),
+    }
+)
+
+
+@automation.register_condition(
+    "api.connected", APIConnectedCondition, API_CONNECTED_CONDITION_SCHEMA
+)
 async def api_connected_to_code(config, condition_id, template_arg, args):
-    return cg.new_Pvariable(condition_id, template_arg)
+    var = cg.new_Pvariable(condition_id, template_arg)
+    templ = await cg.templatable(config[CONF_STATE_SUBSCRIPTION_ONLY], args, cg.bool_)
+    cg.add(var.set_state_subscription_only(templ))
+    return var
 
 
 def FILTER_SOURCE_FILES() -> list[str]:

esphome/components/api/api.proto

@@ -7,10 +7,7 @@ service APIConnection {
     option (needs_setup_connection) = false;
     option (needs_authentication) = false;
   }
-  rpc authenticate (AuthenticationRequest) returns (AuthenticationResponse) {
-    option (needs_setup_connection) = false;
-    option (needs_authentication) = false;
-  }
+  // REMOVED in ESPHome 2026.1.0: rpc authenticate (AuthenticationRequest) returns (AuthenticationResponse)
   rpc disconnect (DisconnectRequest) returns (DisconnectResponse) {
     option (needs_setup_connection) = false;
     option (needs_authentication) = false;
@@ -48,6 +45,7 @@ service APIConnection {
   rpc time_command (TimeCommandRequest) returns (void) {}
   rpc update_command (UpdateCommandRequest) returns (void) {}
   rpc valve_command (ValveCommandRequest) returns (void) {}
+  rpc water_heater_command (WaterHeaterCommandRequest) returns (void) {}
 
   rpc subscribe_bluetooth_le_advertisements(SubscribeBluetoothLEAdvertisementsRequest) returns (void) {}
   rpc bluetooth_device_request(BluetoothDeviceRequest) returns (void) {}
@@ -69,6 +67,8 @@ service APIConnection {
 
   rpc zwave_proxy_frame(ZWaveProxyFrame) returns (void) {}
   rpc zwave_proxy_request(ZWaveProxyRequest) returns (void) {}
+
+  rpc infrared_rf_transmit_raw_timings(InfraredRFTransmitRawTimingsRequest) returns (void) {}
 }
 
 
@@ -82,14 +82,13 @@ service APIConnection {
 //  * VarInt denoting the type of message.
 //  * The message object encoded as a ProtoBuf message
 
-// The connection is established in 4 steps:
+// The connection is established in 2 steps:
 //  * First, the client connects to the server and sends a "Hello Request" identifying itself
-//  * The server responds with a "Hello Response" and selects the protocol version
-//  * After receiving this message, the client attempts to authenticate itself using
-//    the password and a "Connect Request"
-//  * The server responds with a "Connect Response" and notifies of invalid password.
+//  * The server responds with a "Hello Response" and the connection is authenticated
 // If anything in this initial process fails, the connection must immediately closed
 // by both sides and _no_ disconnection message is to be sent.
+// Note: Password authentication via AuthenticationRequest/AuthenticationResponse (message IDs 3, 4)
+// was removed in ESPHome 2026.1.0. Those message IDs are reserved and should not be reused.
 
 // Message sent at the beginning of each connection
 // Can only be sent by the client and only at the beginning of the connection
@@ -102,7 +101,7 @@ message HelloRequest {
   // For example "Home Assistant"
   // Not strictly necessary to send but nice for debugging
   // purposes.
-  string client_info = 1 [(pointer_to_buffer) = true];
+  string client_info = 1;
   uint32 api_version_major = 2;
   uint32 api_version_minor = 3;
 }
@@ -130,25 +129,23 @@ message HelloResponse {
   string name = 4;
 }
 
-// Message sent at the beginning of each connection to authenticate the client
-// Can only be sent by the client and only at the beginning of the connection
+// DEPRECATED in ESPHome 2026.1.0 - Password authentication is no longer supported.
+// These messages are kept for protocol documentation but are not processed by the server.
+// Use noise encryption instead: https://esphome.io/components/api/#configuration-variables
 message AuthenticationRequest {
   option (id) = 3;
   option (source) = SOURCE_CLIENT;
   option (no_delay) = true;
-  option (ifdef) = "USE_API_PASSWORD";
+  option deprecated = true;
 
-  // The password to log in with
-  string password = 1 [(pointer_to_buffer) = true];
+  string password = 1;
 }
 
-// Confirmation of successful connection. After this the connection is available for all traffic.
-// Can only be sent by the server and only at the beginning of the connection
 message AuthenticationResponse {
   option (id) = 4;
   option (source) = SOURCE_SERVER;
   option (no_delay) = true;
-  option (ifdef) = "USE_API_PASSWORD";
+  option deprecated = true;
 
   bool invalid_password = 1;
 }
@@ -205,7 +202,9 @@ message DeviceInfoResponse {
   option (id) = 10;
   option (source) = SOURCE_SERVER;
 
-  bool uses_password = 1 [(field_ifdef) = "USE_API_PASSWORD"];
+  // Deprecated in ESPHome 2026.1.0, but kept for backward compatibility
+  // with older ESPHome versions that still send this field.
+  bool uses_password = 1 [deprecated = true];
 
   // The name of the node, given by "App.set_name()"
   string name = 2;
@@ -425,7 +424,7 @@ message ListEntitiesFanResponse {
   bool disabled_by_default = 9;
   string icon = 10 [(field_ifdef) = "USE_ENTITY_ICON"];
   EntityCategory entity_category = 11;
-  repeated string supported_preset_modes = 12 [(container_pointer) = "std::set"];
+  repeated string supported_preset_modes = 12 [(container_pointer_no_template) = "std::vector<const char *>"];
   uint32 device_id = 13 [(field_ifdef) = "USE_DEVICES"];
 }
 // Deprecated in API version 1.6 - only used in deprecated fields
@@ -518,7 +517,7 @@ message ListEntitiesLightResponse {
   bool legacy_supports_color_temperature = 8 [deprecated=true];
   float min_mireds = 9;
   float max_mireds = 10;
-  repeated string effects = 11;
+  repeated string effects = 11 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool disabled_by_default = 13;
   string icon = 14 [(field_ifdef) = "USE_ENTITY_ICON"];
   EntityCategory entity_category = 15;
@@ -589,6 +588,7 @@ enum SensorStateClass {
   STATE_CLASS_MEASUREMENT = 1;
   STATE_CLASS_TOTAL_INCREASING = 2;
   STATE_CLASS_TOTAL = 3;
+  STATE_CLASS_MEASUREMENT_ANGLE = 4;
 }
 
 // Deprecated in API version 1.5
@@ -766,7 +766,7 @@ message SubscribeHomeassistantServicesRequest {
 
 message HomeassistantServiceMap {
   string key = 1;
-  string value = 2 [(no_zero_copy) = true];
+  string value = 2;
 }
 
 message HomeassistantActionRequest {
@@ -782,7 +782,7 @@ message HomeassistantActionRequest {
   bool is_event = 5;
   uint32 call_id = 6 [(field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES"];
   bool wants_response = 7 [(field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
-  string response_template = 8 [(no_zero_copy) = true, (field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
+  string response_template = 8 [(field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
 }
 
 // Message sent by Home Assistant to ESPHome with service call response data
@@ -795,7 +795,7 @@ message HomeassistantActionResponse {
   uint32 call_id = 1; // Matches the call_id from HomeassistantActionRequest
   bool success = 2; // Whether the service call succeeded
   string error_message = 3; // Error message if success = false
-  bytes response_data = 4 [(pointer_to_buffer) = true, (field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
+  bytes response_data = 4 [(field_ifdef) = "USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON"];
 }
 
 // ==================== IMPORT HOME ASSISTANT STATES ====================
@@ -840,7 +840,7 @@ message GetTimeResponse {
   option (no_delay) = true;
 
   fixed32 epoch_seconds = 1;
-  string timezone = 2 [(pointer_to_buffer) = true];
+  string timezone = 2;
 }
 
 // ==================== USER-DEFINES SERVICES ====================
@@ -854,22 +854,31 @@ enum ServiceArgType {
   SERVICE_ARG_TYPE_FLOAT_ARRAY = 6;
   SERVICE_ARG_TYPE_STRING_ARRAY = 7;
 }
+enum SupportsResponseType {
+  SUPPORTS_RESPONSE_NONE = 0;
+  SUPPORTS_RESPONSE_OPTIONAL = 1;
+  SUPPORTS_RESPONSE_ONLY = 2;
+  // Status-only response - reports success/error without data payload
+  // Value is higher to avoid conflicts with future Home Assistant values
+  SUPPORTS_RESPONSE_STATUS = 100;
+}
 message ListEntitiesServicesArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   string name = 1;
   ServiceArgType type = 2;
 }
 message ListEntitiesServicesResponse {
   option (id) = 41;
   option (source) = SOURCE_SERVER;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   string name = 1;
   fixed32 key = 2;
   repeated ListEntitiesServicesArgument args = 3 [(fixed_vector) = true];
+  SupportsResponseType supports_response = 4;
 }
 message ExecuteServiceArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   bool bool_ = 1;
   int32 legacy_int = 2;
   float float_ = 3;
@@ -885,10 +894,25 @@ message ExecuteServiceRequest {
   option (id) = 42;
   option (source) = SOURCE_CLIENT;
   option (no_delay) = true;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   fixed32 key = 1;
   repeated ExecuteServiceArgument args = 2 [(fixed_vector) = true];
+  uint32 call_id = 3 [(field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES"];
+  bool return_response = 4 [(field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES"];
+}
+
+// Message sent by ESPHome to Home Assistant with service execution response data
+message ExecuteServiceResponse {
+  option (id) = 131;
+  option (source) = SOURCE_SERVER;
+  option (no_delay) = true;
+  option (ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES";
+
+  uint32 call_id = 1; // Matches the call_id from ExecuteServiceRequest
+  bool success = 2; // Whether the service execution succeeded
+  string error_message = 3; // Error message if success = false
+  bytes response_data = 4 [(pointer_to_buffer) = true, (field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES_JSON"];
 }
 
 // ==================== CAMERA ====================
@@ -989,7 +1013,7 @@ message ListEntitiesClimateResponse {
 
   bool supports_current_temperature = 5; // Deprecated: use feature_flags
   bool supports_two_point_target_temperature = 6; // Deprecated: use feature_flags
-  repeated ClimateMode supported_modes = 7 [(container_pointer) = "std::set<climate::ClimateMode>"];
+  repeated ClimateMode supported_modes = 7 [(container_pointer_no_template) = "climate::ClimateModeMask"];
   float visual_min_temperature = 8;
   float visual_max_temperature = 9;
   float visual_target_temperature_step = 10;
@@ -998,11 +1022,11 @@ message ListEntitiesClimateResponse {
   // Deprecated in API version 1.5
   bool legacy_supports_away = 11 [deprecated=true];
   bool supports_action = 12; // Deprecated: use feature_flags
-  repeated ClimateFanMode supported_fan_modes = 13 [(container_pointer) = "std::set<climate::ClimateFanMode>"];
-  repeated ClimateSwingMode supported_swing_modes = 14 [(container_pointer) = "std::set<climate::ClimateSwingMode>"];
-  repeated string supported_custom_fan_modes = 15 [(container_pointer) = "std::set"];
-  repeated ClimatePreset supported_presets = 16 [(container_pointer) = "std::set<climate::ClimatePreset>"];
-  repeated string supported_custom_presets = 17 [(container_pointer) = "std::set"];
+  repeated ClimateFanMode supported_fan_modes = 13 [(container_pointer_no_template) = "climate::ClimateFanModeMask"];
+  repeated ClimateSwingMode supported_swing_modes = 14 [(container_pointer_no_template) = "climate::ClimateSwingModeMask"];
+  repeated string supported_custom_fan_modes = 15 [(container_pointer_no_template) = "std::vector<const char *>"];
+  repeated ClimatePreset supported_presets = 16 [(container_pointer_no_template) = "climate::ClimatePresetMask"];
+  repeated string supported_custom_presets = 17 [(container_pointer_no_template) = "std::vector<const char *>"];
   bool disabled_by_default = 18;
   string icon = 19 [(field_ifdef) = "USE_ENTITY_ICON"];
   EntityCategory entity_category = 20;
@@ -1076,6 +1100,85 @@ message ClimateCommandRequest {
   uint32 device_id = 24 [(field_ifdef) = "USE_DEVICES"];
 }
 
+// ==================== WATER_HEATER ====================
+enum WaterHeaterMode {
+  WATER_HEATER_MODE_OFF = 0;
+  WATER_HEATER_MODE_ECO = 1;
+  WATER_HEATER_MODE_ELECTRIC = 2;
+  WATER_HEATER_MODE_PERFORMANCE = 3;
+  WATER_HEATER_MODE_HIGH_DEMAND = 4;
+  WATER_HEATER_MODE_HEAT_PUMP = 5;
+  WATER_HEATER_MODE_GAS = 6;
+}
+
+message ListEntitiesWaterHeaterResponse {
+  option (id) = 132;
+  option (base_class) = "InfoResponseProtoMessage";
+  option (source) = SOURCE_SERVER;
+  option (ifdef) = "USE_WATER_HEATER";
+
+  string object_id = 1;
+  fixed32 key = 2;
+  string name = 3;
+  string icon = 4 [(field_ifdef) = "USE_ENTITY_ICON"];
+  bool disabled_by_default = 5;
+  EntityCategory entity_category = 6;
+  uint32 device_id = 7 [(field_ifdef) = "USE_DEVICES"];
+  float min_temperature = 8;
+  float max_temperature = 9;
+  float target_temperature_step = 10;
+  repeated WaterHeaterMode supported_modes = 11 [(container_pointer_no_template) = "water_heater::WaterHeaterModeMask"];
+  // Bitmask of WaterHeaterFeature flags
+  uint32 supported_features = 12;
+}
+
+message WaterHeaterStateResponse {
+  option (id) = 133;
+  option (base_class) = "StateResponseProtoMessage";
+  option (source) = SOURCE_SERVER;
+  option (ifdef) = "USE_WATER_HEATER";
+  option (no_delay) = true;
+
+  fixed32 key = 1;
+  float current_temperature = 2;
+  float target_temperature = 3;
+  WaterHeaterMode mode = 4;
+  uint32 device_id = 5 [(field_ifdef) = "USE_DEVICES"];
+  // Bitmask of current state flags (bit 0 = away, bit 1 = on)
+  uint32 state = 6;
+  float target_temperature_low = 7;
+  float target_temperature_high = 8;
+}
+
+// Bitmask for WaterHeaterCommandRequest.has_fields
+enum WaterHeaterCommandHasField {
+  WATER_HEATER_COMMAND_HAS_NONE = 0;
+  WATER_HEATER_COMMAND_HAS_MODE = 1;
+  WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE = 2;
+  WATER_HEATER_COMMAND_HAS_STATE = 4;
+  WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_LOW = 8;
+  WATER_HEATER_COMMAND_HAS_TARGET_TEMPERATURE_HIGH = 16;
+}
+
+message WaterHeaterCommandRequest {
+  option (id) = 134;
+  option (source) = SOURCE_CLIENT;
+  option (ifdef) = "USE_WATER_HEATER";
+  option (no_delay) = true;
+  option (base_class) = "CommandProtoMessage";
+
+  fixed32 key = 1;
+  // Bitmask of which fields are set (see WaterHeaterCommandHasField)
+  uint32 has_fields = 2;
+  WaterHeaterMode mode = 3;
+  float target_temperature = 4;
+  uint32 device_id = 5 [(field_ifdef) = "USE_DEVICES"];
+  // State flags bitmask (bit 0 = away, bit 1 = on)
+  uint32 state = 6;
+  float target_temperature_low = 7;
+  float target_temperature_high = 8;
+}
+
 // ==================== NUMBER ====================
 enum NumberMode {
   NUMBER_MODE_AUTO = 0;
@@ -1143,7 +1246,7 @@ message ListEntitiesSelectResponse {
   reserved 4; // Deprecated: was string unique_id
 
   string icon = 5 [(field_ifdef) = "USE_ENTITY_ICON"];
-  repeated string options = 6 [(container_pointer) = "std::vector"];
+  repeated string options = 6 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool disabled_by_default = 7;
   EntityCategory entity_category = 8;
   uint32 device_id = 9 [(field_ifdef) = "USE_DEVICES"];
@@ -1188,7 +1291,7 @@ message ListEntitiesSirenResponse {
 
   string icon = 5 [(field_ifdef) = "USE_ENTITY_ICON"];
   bool disabled_by_default = 6;
-  repeated string tones = 7;
+  repeated string tones = 7 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool supports_duration = 8;
   bool supports_volume = 9;
   EntityCategory entity_category = 10;
@@ -1588,7 +1691,7 @@ message BluetoothGATTWriteRequest {
   uint32 handle = 2;
   bool response = 3;
 
-  bytes data = 4 [(pointer_to_buffer) = true];
+  bytes data = 4;
 }
 
 message BluetoothGATTReadDescriptorRequest {
@@ -1608,7 +1711,7 @@ message BluetoothGATTWriteDescriptorRequest {
   uint64 address = 1;
   uint32 handle = 2;
 
-  bytes data = 3 [(pointer_to_buffer) = true];
+  bytes data = 3;
 }
 
 message BluetoothGATTNotifyRequest {
@@ -1833,7 +1936,7 @@ message VoiceAssistantAudio {
   option (source) = SOURCE_BOTH;
   option (ifdef) = "USE_VOICE_ASSISTANT";
 
-  bytes data = 1;
+  bytes data = 1 [(pointer_to_buffer) = true];
   bool end = 2;
 }
 
@@ -2147,7 +2250,7 @@ message ListEntitiesEventResponse {
   EntityCategory entity_category = 7;
   string device_class = 8;
 
-  repeated string event_types = 9;
+  repeated string event_types = 9 [(container_pointer_no_template) = "FixedVector<const char *>"];
   uint32 device_id = 10 [(field_ifdef) = "USE_DEVICES"];
 }
 message EventResponse {
@@ -2321,7 +2424,7 @@ message ZWaveProxyFrame {
   option (ifdef) = "USE_ZWAVE_PROXY";
   option (no_delay) = true;
 
-  bytes data = 1 [(pointer_to_buffer) = true];
+  bytes data = 1;
 }
 
 enum ZWaveProxyRequestType {
@@ -2335,5 +2438,51 @@ message ZWaveProxyRequest {
   option (ifdef) = "USE_ZWAVE_PROXY";
 
   ZWaveProxyRequestType type = 1;
-  bytes data = 2 [(pointer_to_buffer) = true];
+  bytes data = 2;
+}
+
+// ==================== INFRARED ====================
+// Note: Feature and capability flag enums are defined in
+// esphome/components/infrared/infrared.h
+
+// Listing of infrared instances
+message ListEntitiesInfraredResponse {
+  option (id) = 135;
+  option (base_class) = "InfoResponseProtoMessage";
+  option (source) = SOURCE_SERVER;
+  option (ifdef) = "USE_INFRARED";
+
+  string object_id = 1;
+  fixed32 key = 2;
+  string name = 3;
+  string icon = 4 [(field_ifdef) = "USE_ENTITY_ICON"];
+  bool disabled_by_default = 5;
+  EntityCategory entity_category = 6;
+  uint32 device_id = 7 [(field_ifdef) = "USE_DEVICES"];
+  uint32 capabilities = 8;  // Bitfield of InfraredCapabilityFlags
+}
+
+// Command to transmit infrared/RF data using raw timings
+message InfraredRFTransmitRawTimingsRequest {
+  option (id) = 136;
+  option (source) = SOURCE_CLIENT;
+  option (ifdef) = "USE_IR_RF";
+
+  uint32 device_id = 1 [(field_ifdef) = "USE_DEVICES"];
+  fixed32 key = 2;                                       // Key identifying the transmitter instance
+  uint32 carrier_frequency = 3;                          // Carrier frequency in Hz
+  uint32 repeat_count = 4;                               // Number of times to transmit (1 = once, 2 = twice, etc.)
+  repeated sint32 timings = 5 [packed = true, (packed_buffer) = true];  // Raw timings in microseconds (zigzag-encoded): positive = mark (LED/TX on), negative = space (LED/TX off)
+}
+
+// Event message for received infrared/RF data
+message InfraredRFReceiveEvent {
+  option (id) = 137;
+  option (source) = SOURCE_SERVER;
+  option (ifdef) = "USE_IR_RF";
+  option (no_delay) = true;
+
+  uint32 device_id = 1 [(field_ifdef) = "USE_DEVICES"];
+  fixed32 key = 2;                                    // Key identifying the receiver instance
+  repeated sint32 timings = 3 [packed = true, (container_pointer_no_template) = "std::vector<int32_t>"];  // Raw timings in microseconds (zigzag-encoded): alternating mark/space periods
 }