Merge branch 'multi_device' into integration

esphome/components/api/api.proto

@@ -188,6 +188,17 @@ message DeviceInfoRequest {
   // Empty
 }
 
+message AreaInfo {
+  uint32 area_id = 1;
+  string name = 2;
+}
+
+message DeviceInfo {
+  uint32 device_id = 1;
+  string name = 2;
+  uint32 area_id = 3;
+}
+
 message DeviceInfoResponse {
   option (id) = 10;
   option (source) = SOURCE_SERVER;
@@ -236,6 +247,12 @@ message DeviceInfoResponse {
 
   // Supports receiving and saving api encryption key
   bool api_encryption_supported = 19;
+
+  repeated DeviceInfo devices = 20;
+  repeated AreaInfo areas = 21;
+
+  // Top-level area info to phase out suggested_area
+  AreaInfo area = 22;
 }
 
 message ListEntitiesRequest {
@@ -280,6 +297,7 @@ message ListEntitiesBinarySensorResponse {
   bool disabled_by_default = 7;
   string icon = 8;
   EntityCategory entity_category = 9;
+  uint32 device_id = 10;
 }
 message BinarySensorStateResponse {
   option (id) = 21;
@@ -315,6 +333,7 @@ message ListEntitiesCoverResponse {
   string icon = 10;
   EntityCategory entity_category = 11;
   bool supports_stop = 12;
+  uint32 device_id = 13;
 }
 
 enum LegacyCoverState {
@@ -388,6 +407,7 @@ message ListEntitiesFanResponse {
   string icon = 10;
   EntityCategory entity_category = 11;
   repeated string supported_preset_modes = 12;
+  uint32 device_id = 13;
 }
 enum FanSpeed {
   FAN_SPEED_LOW = 0;
@@ -471,6 +491,7 @@ message ListEntitiesLightResponse {
   bool disabled_by_default = 13;
   string icon = 14;
   EntityCategory entity_category = 15;
+  uint32 device_id = 16;
 }
 message LightStateResponse {
   option (id) = 24;
@@ -563,6 +584,7 @@ message ListEntitiesSensorResponse {
   SensorLastResetType legacy_last_reset_type = 11;
   bool disabled_by_default = 12;
   EntityCategory entity_category = 13;
+  uint32 device_id = 14;
 }
 message SensorStateResponse {
   option (id) = 25;
@@ -595,6 +617,7 @@ message ListEntitiesSwitchResponse {
   bool disabled_by_default = 7;
   EntityCategory entity_category = 8;
   string device_class = 9;
+  uint32 device_id = 10;
 }
 message SwitchStateResponse {
   option (id) = 26;
@@ -632,6 +655,7 @@ message ListEntitiesTextSensorResponse {
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
   string device_class = 8;
+  uint32 device_id = 9;
 }
 message TextSensorStateResponse {
   option (id) = 27;
@@ -814,6 +838,7 @@ message ListEntitiesCameraResponse {
   bool disabled_by_default = 5;
   string icon = 6;
   EntityCategory entity_category = 7;
+  uint32 device_id = 8;
 }
 
 message CameraImageResponse {
@@ -916,6 +941,7 @@ message ListEntitiesClimateResponse {
   bool supports_target_humidity = 23;
   float visual_min_humidity = 24;
   float visual_max_humidity = 25;
+  uint32 device_id = 26;
 }
 message ClimateStateResponse {
   option (id) = 47;
@@ -999,6 +1025,7 @@ message ListEntitiesNumberResponse {
   string unit_of_measurement = 11;
   NumberMode mode = 12;
   string device_class = 13;
+  uint32 device_id = 14;
 }
 message NumberStateResponse {
   option (id) = 50;
@@ -1039,6 +1066,7 @@ message ListEntitiesSelectResponse {
   repeated string options = 6;
   bool disabled_by_default = 7;
   EntityCategory entity_category = 8;
+  uint32 device_id = 9;
 }
 message SelectStateResponse {
   option (id) = 53;
@@ -1081,6 +1109,7 @@ message ListEntitiesSirenResponse {
   bool supports_duration = 8;
   bool supports_volume = 9;
   EntityCategory entity_category = 10;
+  uint32 device_id = 11;
 }
 message SirenStateResponse {
   option (id) = 56;
@@ -1144,6 +1173,7 @@ message ListEntitiesLockResponse {
 
   // Not yet implemented:
   string code_format = 11;
+  uint32 device_id = 12;
 }
 message LockStateResponse {
   option (id) = 59;
@@ -1183,6 +1213,7 @@ message ListEntitiesButtonResponse {
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
   string device_class = 8;
+  uint32 device_id = 9;
 }
 message ButtonCommandRequest {
   option (id) = 62;
@@ -1238,6 +1269,8 @@ message ListEntitiesMediaPlayerResponse {
   bool supports_pause = 8;
 
   repeated MediaPlayerSupportedFormat supported_formats = 9;
+
+  uint32 device_id = 10;
 }
 message MediaPlayerStateResponse {
   option (id) = 64;
@@ -1778,6 +1811,7 @@ message ListEntitiesAlarmControlPanelResponse {
   uint32 supported_features = 8;
   bool requires_code = 9;
   bool requires_code_to_arm = 10;
+  uint32 device_id = 11;
 }
 
 message AlarmControlPanelStateResponse {
@@ -1823,6 +1857,7 @@ message ListEntitiesTextResponse {
   uint32 max_length = 9;
   string pattern = 10;
   TextMode mode = 11;
+  uint32 device_id = 12;
 }
 message TextStateResponse {
   option (id) = 98;
@@ -1863,6 +1898,7 @@ message ListEntitiesDateResponse {
   string icon = 5;
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
+  uint32 device_id = 8;
 }
 message DateStateResponse {
   option (id) = 101;
@@ -1906,6 +1942,7 @@ message ListEntitiesTimeResponse {
   string icon = 5;
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
+  uint32 device_id = 8;
 }
 message TimeStateResponse {
   option (id) = 104;
@@ -1952,6 +1989,7 @@ message ListEntitiesEventResponse {
   string device_class = 8;
 
   repeated string event_types = 9;
+  uint32 device_id = 10;
 }
 message EventResponse {
   option (id) = 108;
@@ -1983,6 +2021,7 @@ message ListEntitiesValveResponse {
   bool assumed_state = 9;
   bool supports_position = 10;
   bool supports_stop = 11;
+  uint32 device_id = 12;
 }
 
 enum ValveOperation {
@@ -2029,6 +2068,7 @@ message ListEntitiesDateTimeResponse {
   string icon = 5;
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
+  uint32 device_id = 8;
 }
 message DateTimeStateResponse {
   option (id) = 113;
@@ -2069,6 +2109,7 @@ message ListEntitiesUpdateResponse {
   bool disabled_by_default = 6;
   EntityCategory entity_category = 7;
   string device_class = 8;
+  uint32 device_id = 9;
 }
 message UpdateStateResponse {
   option (id) = 117;

esphome/components/api/api_connection.cpp

@@ -1621,6 +1621,23 @@ DeviceInfoResponse APIConnection::device_info(const DeviceInfoRequest &msg) {
 #endif
 #ifdef USE_API_NOISE
   resp.api_encryption_supported = true;
+#endif
+#ifdef USE_DEVICES
+  for (auto const &device : App.get_devices()) {
+    DeviceInfo device_info;
+    device_info.device_id = device->get_device_id();
+    device_info.name = device->get_name();
+    device_info.area_id = device->get_area_id();
+    resp.devices.push_back(device_info);
+  }
+#endif
+#ifdef USE_AREAS
+  for (auto const &area : App.get_areas()) {
+    AreaInfo area_info;
+    area_info.area_id = area->get_area_id();
+    area_info.name = area->get_name();
+    resp.areas.push_back(area_info);
+  }
 #endif
   return resp;
 }

esphome/components/api/api_connection.h

@@ -301,6 +301,9 @@ class APIConnection : public APIServerConnection {
     response.icon = entity->get_icon();
     response.disabled_by_default = entity->is_disabled_by_default();
     response.entity_category = static_cast<enums::EntityCategory>(entity->get_entity_category());
+#ifdef USE_DEVICES
+    response.device_id = entity->get_device_id();
+#endif
   }
 
   // Helper function to fill common entity state fields

esphome/components/api/api_pb2.cpp

@@ -812,6 +812,103 @@ void PingResponse::dump_to(std::string &out) const { out.append("PingResponse {}
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void DeviceInfoRequest::dump_to(std::string &out) const { out.append("DeviceInfoRequest {}"); }
 #endif
+bool AreaInfo::decode_varint(uint32_t field_id, ProtoVarInt value) {
+  switch (field_id) {
+    case 1: {
+      this->area_id = value.as_uint32();
+      return true;
+    }
+    default:
+      return false;
+  }
+}
+bool AreaInfo::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
+  switch (field_id) {
+    case 2: {
+      this->name = value.as_string();
+      return true;
+    }
+    default:
+      return false;
+  }
+}
+void AreaInfo::encode(ProtoWriteBuffer buffer) const {
+  buffer.encode_uint32(1, this->area_id);
+  buffer.encode_string(2, this->name);
+}
+void AreaInfo::calculate_size(uint32_t &total_size) const {
+  ProtoSize::add_uint32_field(total_size, 1, this->area_id, false);
+  ProtoSize::add_string_field(total_size, 1, this->name, false);
+}
+#ifdef HAS_PROTO_MESSAGE_DUMP
+void AreaInfo::dump_to(std::string &out) const {
+  __attribute__((unused)) char buffer[64];
+  out.append("AreaInfo {\n");
+  out.append("  area_id: ");
+  sprintf(buffer, "%" PRIu32, this->area_id);
+  out.append(buffer);
+  out.append("\n");
+
+  out.append("  name: ");
+  out.append("'").append(this->name).append("'");
+  out.append("\n");
+  out.append("}");
+}
+#endif
+bool DeviceInfo::decode_varint(uint32_t field_id, ProtoVarInt value) {
+  switch (field_id) {
+    case 1: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
+    case 3: {
+      this->area_id = value.as_uint32();
+      return true;
+    }
+    default:
+      return false;
+  }
+}
+bool DeviceInfo::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
+  switch (field_id) {
+    case 2: {
+      this->name = value.as_string();
+      return true;
+    }
+    default:
+      return false;
+  }
+}
+void DeviceInfo::encode(ProtoWriteBuffer buffer) const {
+  buffer.encode_uint32(1, this->device_id);
+  buffer.encode_string(2, this->name);
+  buffer.encode_uint32(3, this->area_id);
+}
+void DeviceInfo::calculate_size(uint32_t &total_size) const {
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
+  ProtoSize::add_string_field(total_size, 1, this->name, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->area_id, false);
+}
+#ifdef HAS_PROTO_MESSAGE_DUMP
+void DeviceInfo::dump_to(std::string &out) const {
+  __attribute__((unused)) char buffer[64];
+  out.append("DeviceInfo {\n");
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
+
+  out.append("  name: ");
+  out.append("'").append(this->name).append("'");
+  out.append("\n");
+
+  out.append("  area_id: ");
+  sprintf(buffer, "%" PRIu32, this->area_id);
+  out.append(buffer);
+  out.append("\n");
+  out.append("}");
+}
+#endif
 bool DeviceInfoResponse::decode_varint(uint32_t field_id, ProtoVarInt value) {
   switch (field_id) {
     case 1: {
@@ -896,6 +993,18 @@ bool DeviceInfoResponse::decode_length(uint32_t field_id, ProtoLengthDelimited v
       this->bluetooth_mac_address = value.as_string();
       return true;
     }
+    case 20: {
+      this->devices.push_back(value.as_message<DeviceInfo>());
+      return true;
+    }
+    case 21: {
+      this->areas.push_back(value.as_message<AreaInfo>());
+      return true;
+    }
+    case 22: {
+      this->area = value.as_message<AreaInfo>();
+      return true;
+    }
     default:
       return false;
   }
@@ -920,6 +1029,13 @@ void DeviceInfoResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(16, this->suggested_area);
   buffer.encode_string(18, this->bluetooth_mac_address);
   buffer.encode_bool(19, this->api_encryption_supported);
+  for (auto &it : this->devices) {
+    buffer.encode_message<DeviceInfo>(20, it, true);
+  }
+  for (auto &it : this->areas) {
+    buffer.encode_message<AreaInfo>(21, it, true);
+  }
+  buffer.encode_message<AreaInfo>(22, this->area);
 }
 void DeviceInfoResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->uses_password, false);
@@ -941,6 +1057,9 @@ void DeviceInfoResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 2, this->suggested_area, false);
   ProtoSize::add_string_field(total_size, 2, this->bluetooth_mac_address, false);
   ProtoSize::add_bool_field(total_size, 2, this->api_encryption_supported, false);
+  ProtoSize::add_repeated_message(total_size, 2, this->devices);
+  ProtoSize::add_repeated_message(total_size, 2, this->areas);
+  ProtoSize::add_message_object(total_size, 2, this->area, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void DeviceInfoResponse::dump_to(std::string &out) const {
@@ -1026,6 +1145,22 @@ void DeviceInfoResponse::dump_to(std::string &out) const {
   out.append("  api_encryption_supported: ");
   out.append(YESNO(this->api_encryption_supported));
   out.append("\n");
+
+  for (const auto &it : this->devices) {
+    out.append("  devices: ");
+    it.dump_to(out);
+    out.append("\n");
+  }
+
+  for (const auto &it : this->areas) {
+    out.append("  areas: ");
+    it.dump_to(out);
+    out.append("\n");
+  }
+
+  out.append("  area: ");
+  this->area.dump_to(out);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -1052,6 +1187,10 @@ bool ListEntitiesBinarySensorResponse::decode_varint(uint32_t field_id, ProtoVar
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 10: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -1102,6 +1241,7 @@ void ListEntitiesBinarySensorResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(7, this->disabled_by_default);
   buffer.encode_string(8, this->icon);
   buffer.encode_enum<enums::EntityCategory>(9, this->entity_category);
+  buffer.encode_uint32(10, this->device_id);
 }
 void ListEntitiesBinarySensorResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -1113,6 +1253,7 @@ void ListEntitiesBinarySensorResponse::calculate_size(uint32_t &total_size) cons
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesBinarySensorResponse::dump_to(std::string &out) const {
@@ -1154,6 +1295,11 @@ void ListEntitiesBinarySensorResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -1236,6 +1382,10 @@ bool ListEntitiesCoverResponse::decode_varint(uint32_t field_id, ProtoVarInt val
       this->supports_stop = value.as_bool();
       return true;
     }
+    case 13: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -1289,6 +1439,7 @@ void ListEntitiesCoverResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(10, this->icon);
   buffer.encode_enum<enums::EntityCategory>(11, this->entity_category);
   buffer.encode_bool(12, this->supports_stop);
+  buffer.encode_uint32(13, this->device_id);
 }
 void ListEntitiesCoverResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -1303,6 +1454,7 @@ void ListEntitiesCoverResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_bool_field(total_size, 1, this->supports_stop, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesCoverResponse::dump_to(std::string &out) const {
@@ -1356,6 +1508,11 @@ void ListEntitiesCoverResponse::dump_to(std::string &out) const {
   out.append("  supports_stop: ");
   out.append(YESNO(this->supports_stop));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -1565,6 +1722,10 @@ bool ListEntitiesFanResponse::decode_varint(uint32_t field_id, ProtoVarInt value
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 13: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -1620,6 +1781,7 @@ void ListEntitiesFanResponse::encode(ProtoWriteBuffer buffer) const {
   for (auto &it : this->supported_preset_modes) {
     buffer.encode_string(12, it, true);
   }
+  buffer.encode_uint32(13, this->device_id);
 }
 void ListEntitiesFanResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -1638,6 +1800,7 @@ void ListEntitiesFanResponse::calculate_size(uint32_t &total_size) const {
       ProtoSize::add_string_field(total_size, 1, it, true);
     }
   }
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesFanResponse::dump_to(std::string &out) const {
@@ -1694,6 +1857,11 @@ void ListEntitiesFanResponse::dump_to(std::string &out) const {
     out.append("'").append(it).append("'");
     out.append("\n");
   }
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -1987,6 +2155,10 @@ bool ListEntitiesLightResponse::decode_varint(uint32_t field_id, ProtoVarInt val
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 16: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -2055,6 +2227,7 @@ void ListEntitiesLightResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(13, this->disabled_by_default);
   buffer.encode_string(14, this->icon);
   buffer.encode_enum<enums::EntityCategory>(15, this->entity_category);
+  buffer.encode_uint32(16, this->device_id);
 }
 void ListEntitiesLightResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -2080,6 +2253,7 @@ void ListEntitiesLightResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 2, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesLightResponse::dump_to(std::string &out) const {
@@ -2151,6 +2325,11 @@ void ListEntitiesLightResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -2658,6 +2837,10 @@ bool ListEntitiesSensorResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 14: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -2716,6 +2899,7 @@ void ListEntitiesSensorResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_enum<enums::SensorLastResetType>(11, this->legacy_last_reset_type);
   buffer.encode_bool(12, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(13, this->entity_category);
+  buffer.encode_uint32(14, this->device_id);
 }
 void ListEntitiesSensorResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -2731,6 +2915,7 @@ void ListEntitiesSensorResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->legacy_last_reset_type), false);
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesSensorResponse::dump_to(std::string &out) const {
@@ -2789,6 +2974,11 @@ void ListEntitiesSensorResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -2860,6 +3050,10 @@ bool ListEntitiesSwitchResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 10: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -2910,6 +3104,7 @@ void ListEntitiesSwitchResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(7, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(8, this->entity_category);
   buffer.encode_string(9, this->device_class);
+  buffer.encode_uint32(10, this->device_id);
 }
 void ListEntitiesSwitchResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -2921,6 +3116,7 @@ void ListEntitiesSwitchResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_string_field(total_size, 1, this->device_class, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesSwitchResponse::dump_to(std::string &out) const {
@@ -2962,6 +3158,11 @@ void ListEntitiesSwitchResponse::dump_to(std::string &out) const {
   out.append("  device_class: ");
   out.append("'").append(this->device_class).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -3061,6 +3262,10 @@ bool ListEntitiesTextSensorResponse::decode_varint(uint32_t field_id, ProtoVarIn
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 9: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -3110,6 +3315,7 @@ void ListEntitiesTextSensorResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
   buffer.encode_string(8, this->device_class);
+  buffer.encode_uint32(9, this->device_id);
 }
 void ListEntitiesTextSensorResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -3120,6 +3326,7 @@ void ListEntitiesTextSensorResponse::calculate_size(uint32_t &total_size) const
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_string_field(total_size, 1, this->device_class, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesTextSensorResponse::dump_to(std::string &out) const {
@@ -3157,6 +3364,11 @@ void ListEntitiesTextSensorResponse::dump_to(std::string &out) const {
   out.append("  device_class: ");
   out.append("'").append(this->device_class).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -3922,6 +4134,10 @@ bool ListEntitiesCameraResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 8: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -3966,6 +4182,7 @@ void ListEntitiesCameraResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(5, this->disabled_by_default);
   buffer.encode_string(6, this->icon);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
+  buffer.encode_uint32(8, this->device_id);
 }
 void ListEntitiesCameraResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -3975,6 +4192,7 @@ void ListEntitiesCameraResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesCameraResponse::dump_to(std::string &out) const {
@@ -4008,6 +4226,11 @@ void ListEntitiesCameraResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -4156,6 +4379,10 @@ bool ListEntitiesClimateResponse::decode_varint(uint32_t field_id, ProtoVarInt v
       this->supports_target_humidity = value.as_bool();
       return true;
     }
+    case 26: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -4262,6 +4489,7 @@ void ListEntitiesClimateResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(23, this->supports_target_humidity);
   buffer.encode_float(24, this->visual_min_humidity);
   buffer.encode_float(25, this->visual_max_humidity);
+  buffer.encode_uint32(26, this->device_id);
 }
 void ListEntitiesClimateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -4313,6 +4541,7 @@ void ListEntitiesClimateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 2, this->supports_target_humidity, false);
   ProtoSize::add_fixed_field<4>(total_size, 2, this->visual_min_humidity != 0.0f, false);
   ProtoSize::add_fixed_field<4>(total_size, 2, this->visual_max_humidity != 0.0f, false);
+  ProtoSize::add_uint32_field(total_size, 2, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesClimateResponse::dump_to(std::string &out) const {
@@ -4436,6 +4665,11 @@ void ListEntitiesClimateResponse::dump_to(std::string &out) const {
   sprintf(buffer, "%g", this->visual_max_humidity);
   out.append(buffer);
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -4901,6 +5135,10 @@ bool ListEntitiesNumberResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->mode = value.as_enum<enums::NumberMode>();
       return true;
     }
+    case 14: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -4971,6 +5209,7 @@ void ListEntitiesNumberResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(11, this->unit_of_measurement);
   buffer.encode_enum<enums::NumberMode>(12, this->mode);
   buffer.encode_string(13, this->device_class);
+  buffer.encode_uint32(14, this->device_id);
 }
 void ListEntitiesNumberResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -4986,6 +5225,7 @@ void ListEntitiesNumberResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->unit_of_measurement, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->mode), false);
   ProtoSize::add_string_field(total_size, 1, this->device_class, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesNumberResponse::dump_to(std::string &out) const {
@@ -5046,6 +5286,11 @@ void ListEntitiesNumberResponse::dump_to(std::string &out) const {
   out.append("  device_class: ");
   out.append("'").append(this->device_class).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -5151,6 +5396,10 @@ bool ListEntitiesSelectResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 9: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -5202,6 +5451,7 @@ void ListEntitiesSelectResponse::encode(ProtoWriteBuffer buffer) const {
   }
   buffer.encode_bool(7, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(8, this->entity_category);
+  buffer.encode_uint32(9, this->device_id);
 }
 void ListEntitiesSelectResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -5216,6 +5466,7 @@ void ListEntitiesSelectResponse::calculate_size(uint32_t &total_size) const {
   }
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesSelectResponse::dump_to(std::string &out) const {
@@ -5255,6 +5506,11 @@ void ListEntitiesSelectResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -5378,6 +5634,10 @@ bool ListEntitiesSirenResponse::decode_varint(uint32_t field_id, ProtoVarInt val
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 11: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -5431,6 +5691,7 @@ void ListEntitiesSirenResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(8, this->supports_duration);
   buffer.encode_bool(9, this->supports_volume);
   buffer.encode_enum<enums::EntityCategory>(10, this->entity_category);
+  buffer.encode_uint32(11, this->device_id);
 }
 void ListEntitiesSirenResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -5447,6 +5708,7 @@ void ListEntitiesSirenResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->supports_duration, false);
   ProtoSize::add_bool_field(total_size, 1, this->supports_volume, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesSirenResponse::dump_to(std::string &out) const {
@@ -5494,6 +5756,11 @@ void ListEntitiesSirenResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -5683,6 +5950,10 @@ bool ListEntitiesLockResponse::decode_varint(uint32_t field_id, ProtoVarInt valu
       this->requires_code = value.as_bool();
       return true;
     }
+    case 12: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -5735,6 +6006,7 @@ void ListEntitiesLockResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(9, this->supports_open);
   buffer.encode_bool(10, this->requires_code);
   buffer.encode_string(11, this->code_format);
+  buffer.encode_uint32(12, this->device_id);
 }
 void ListEntitiesLockResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -5748,6 +6020,7 @@ void ListEntitiesLockResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->supports_open, false);
   ProtoSize::add_bool_field(total_size, 1, this->requires_code, false);
   ProtoSize::add_string_field(total_size, 1, this->code_format, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesLockResponse::dump_to(std::string &out) const {
@@ -5797,6 +6070,11 @@ void ListEntitiesLockResponse::dump_to(std::string &out) const {
   out.append("  code_format: ");
   out.append("'").append(this->code_format).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -5922,6 +6200,10 @@ bool ListEntitiesButtonResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 9: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -5971,6 +6253,7 @@ void ListEntitiesButtonResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
   buffer.encode_string(8, this->device_class);
+  buffer.encode_uint32(9, this->device_id);
 }
 void ListEntitiesButtonResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -5981,6 +6264,7 @@ void ListEntitiesButtonResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_string_field(total_size, 1, this->device_class, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesButtonResponse::dump_to(std::string &out) const {
@@ -6018,6 +6302,11 @@ void ListEntitiesButtonResponse::dump_to(std::string &out) const {
   out.append("  device_class: ");
   out.append("'").append(this->device_class).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -6135,6 +6424,10 @@ bool ListEntitiesMediaPlayerResponse::decode_varint(uint32_t field_id, ProtoVarI
       this->supports_pause = value.as_bool();
       return true;
     }
+    case 10: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -6187,6 +6480,7 @@ void ListEntitiesMediaPlayerResponse::encode(ProtoWriteBuffer buffer) const {
   for (auto &it : this->supported_formats) {
     buffer.encode_message<MediaPlayerSupportedFormat>(9, it, true);
   }
+  buffer.encode_uint32(10, this->device_id);
 }
 void ListEntitiesMediaPlayerResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -6198,6 +6492,7 @@ void ListEntitiesMediaPlayerResponse::calculate_size(uint32_t &total_size) const
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_bool_field(total_size, 1, this->supports_pause, false);
   ProtoSize::add_repeated_message(total_size, 1, this->supported_formats);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesMediaPlayerResponse::dump_to(std::string &out) const {
@@ -6241,6 +6536,11 @@ void ListEntitiesMediaPlayerResponse::dump_to(std::string &out) const {
     it.dump_to(out);
     out.append("\n");
   }
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -8551,6 +8851,10 @@ bool ListEntitiesAlarmControlPanelResponse::decode_varint(uint32_t field_id, Pro
       this->requires_code_to_arm = value.as_bool();
       return true;
     }
+    case 11: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -8598,6 +8902,7 @@ void ListEntitiesAlarmControlPanelResponse::encode(ProtoWriteBuffer buffer) cons
   buffer.encode_uint32(8, this->supported_features);
   buffer.encode_bool(9, this->requires_code);
   buffer.encode_bool(10, this->requires_code_to_arm);
+  buffer.encode_uint32(11, this->device_id);
 }
 void ListEntitiesAlarmControlPanelResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -8610,6 +8915,7 @@ void ListEntitiesAlarmControlPanelResponse::calculate_size(uint32_t &total_size)
   ProtoSize::add_uint32_field(total_size, 1, this->supported_features, false);
   ProtoSize::add_bool_field(total_size, 1, this->requires_code, false);
   ProtoSize::add_bool_field(total_size, 1, this->requires_code_to_arm, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesAlarmControlPanelResponse::dump_to(std::string &out) const {
@@ -8656,6 +8962,11 @@ void ListEntitiesAlarmControlPanelResponse::dump_to(std::string &out) const {
   out.append("  requires_code_to_arm: ");
   out.append(YESNO(this->requires_code_to_arm));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -8783,6 +9094,10 @@ bool ListEntitiesTextResponse::decode_varint(uint32_t field_id, ProtoVarInt valu
       this->mode = value.as_enum<enums::TextMode>();
       return true;
     }
+    case 12: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -8835,6 +9150,7 @@ void ListEntitiesTextResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_uint32(9, this->max_length);
   buffer.encode_string(10, this->pattern);
   buffer.encode_enum<enums::TextMode>(11, this->mode);
+  buffer.encode_uint32(12, this->device_id);
 }
 void ListEntitiesTextResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -8848,6 +9164,7 @@ void ListEntitiesTextResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_uint32_field(total_size, 1, this->max_length, false);
   ProtoSize::add_string_field(total_size, 1, this->pattern, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->mode), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesTextResponse::dump_to(std::string &out) const {
@@ -8899,6 +9216,11 @@ void ListEntitiesTextResponse::dump_to(std::string &out) const {
   out.append("  mode: ");
   out.append(proto_enum_to_string<enums::TextMode>(this->mode));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -9014,6 +9336,10 @@ bool ListEntitiesDateResponse::decode_varint(uint32_t field_id, ProtoVarInt valu
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 8: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -9058,6 +9384,7 @@ void ListEntitiesDateResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(5, this->icon);
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
+  buffer.encode_uint32(8, this->device_id);
 }
 void ListEntitiesDateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -9067,6 +9394,7 @@ void ListEntitiesDateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesDateResponse::dump_to(std::string &out) const {
@@ -9100,6 +9428,11 @@ void ListEntitiesDateResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -9255,6 +9588,10 @@ bool ListEntitiesTimeResponse::decode_varint(uint32_t field_id, ProtoVarInt valu
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 8: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -9299,6 +9636,7 @@ void ListEntitiesTimeResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(5, this->icon);
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
+  buffer.encode_uint32(8, this->device_id);
 }
 void ListEntitiesTimeResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -9308,6 +9646,7 @@ void ListEntitiesTimeResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesTimeResponse::dump_to(std::string &out) const {
@@ -9341,6 +9680,11 @@ void ListEntitiesTimeResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -9496,6 +9840,10 @@ bool ListEntitiesEventResponse::decode_varint(uint32_t field_id, ProtoVarInt val
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 10: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -9552,6 +9900,7 @@ void ListEntitiesEventResponse::encode(ProtoWriteBuffer buffer) const {
   for (auto &it : this->event_types) {
     buffer.encode_string(9, it, true);
   }
+  buffer.encode_uint32(10, this->device_id);
 }
 void ListEntitiesEventResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -9567,6 +9916,7 @@ void ListEntitiesEventResponse::calculate_size(uint32_t &total_size) const {
       ProtoSize::add_string_field(total_size, 1, it, true);
     }
   }
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesEventResponse::dump_to(std::string &out) const {
@@ -9610,6 +9960,11 @@ void ListEntitiesEventResponse::dump_to(std::string &out) const {
     out.append("'").append(it).append("'");
     out.append("\n");
   }
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -9678,6 +10033,10 @@ bool ListEntitiesValveResponse::decode_varint(uint32_t field_id, ProtoVarInt val
       this->supports_stop = value.as_bool();
       return true;
     }
+    case 12: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -9730,6 +10089,7 @@ void ListEntitiesValveResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(9, this->assumed_state);
   buffer.encode_bool(10, this->supports_position);
   buffer.encode_bool(11, this->supports_stop);
+  buffer.encode_uint32(12, this->device_id);
 }
 void ListEntitiesValveResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -9743,6 +10103,7 @@ void ListEntitiesValveResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->assumed_state, false);
   ProtoSize::add_bool_field(total_size, 1, this->supports_position, false);
   ProtoSize::add_bool_field(total_size, 1, this->supports_stop, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesValveResponse::dump_to(std::string &out) const {
@@ -9792,6 +10153,11 @@ void ListEntitiesValveResponse::dump_to(std::string &out) const {
   out.append("  supports_stop: ");
   out.append(YESNO(this->supports_stop));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -9923,6 +10289,10 @@ bool ListEntitiesDateTimeResponse::decode_varint(uint32_t field_id, ProtoVarInt
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 8: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -9967,6 +10337,7 @@ void ListEntitiesDateTimeResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(5, this->icon);
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
+  buffer.encode_uint32(8, this->device_id);
 }
 void ListEntitiesDateTimeResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -9976,6 +10347,7 @@ void ListEntitiesDateTimeResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->icon, false);
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesDateTimeResponse::dump_to(std::string &out) const {
@@ -10009,6 +10381,11 @@ void ListEntitiesDateTimeResponse::dump_to(std::string &out) const {
   out.append("  entity_category: ");
   out.append(proto_enum_to_string<enums::EntityCategory>(this->entity_category));
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif
@@ -10114,6 +10491,10 @@ bool ListEntitiesUpdateResponse::decode_varint(uint32_t field_id, ProtoVarInt va
       this->entity_category = value.as_enum<enums::EntityCategory>();
       return true;
     }
+    case 9: {
+      this->device_id = value.as_uint32();
+      return true;
+    }
     default:
       return false;
   }
@@ -10163,6 +10544,7 @@ void ListEntitiesUpdateResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_bool(6, this->disabled_by_default);
   buffer.encode_enum<enums::EntityCategory>(7, this->entity_category);
   buffer.encode_string(8, this->device_class);
+  buffer.encode_uint32(9, this->device_id);
 }
 void ListEntitiesUpdateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_string_field(total_size, 1, this->object_id, false);
@@ -10173,6 +10555,7 @@ void ListEntitiesUpdateResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_bool_field(total_size, 1, this->disabled_by_default, false);
   ProtoSize::add_enum_field(total_size, 1, static_cast<uint32_t>(this->entity_category), false);
   ProtoSize::add_string_field(total_size, 1, this->device_class, false);
+  ProtoSize::add_uint32_field(total_size, 1, this->device_id, false);
 }
 #ifdef HAS_PROTO_MESSAGE_DUMP
 void ListEntitiesUpdateResponse::dump_to(std::string &out) const {
@@ -10210,6 +10593,11 @@ void ListEntitiesUpdateResponse::dump_to(std::string &out) const {
   out.append("  device_class: ");
   out.append("'").append(this->device_class).append("'");
   out.append("\n");
+
+  out.append("  device_id: ");
+  sprintf(buffer, "%" PRIu32, this->device_id);
+  out.append(buffer);
+  out.append("\n");
   out.append("}");
 }
 #endif

esphome/components/api/api_pb2.h

@@ -264,6 +264,7 @@ class InfoResponseProtoMessage : public ProtoMessage {
   bool disabled_by_default{false};
   std::string icon{};
   enums::EntityCategory entity_category{};
+  uint32_t device_id{0};
 
  protected:
 };
@@ -415,10 +416,39 @@ class DeviceInfoRequest : public ProtoMessage {
 
  protected:
 };
+class AreaInfo : public ProtoMessage {
+ public:
+  uint32_t area_id{0};
+  std::string name{};
+  void encode(ProtoWriteBuffer buffer) const override;
+  void calculate_size(uint32_t &total_size) const override;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  void dump_to(std::string &out) const override;
+#endif
+
+ protected:
+  bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
+  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
+};
+class DeviceInfo : public ProtoMessage {
+ public:
+  uint32_t device_id{0};
+  std::string name{};
+  uint32_t area_id{0};
+  void encode(ProtoWriteBuffer buffer) const override;
+  void calculate_size(uint32_t &total_size) const override;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  void dump_to(std::string &out) const override;
+#endif
+
+ protected:
+  bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
+  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
+};
 class DeviceInfoResponse : public ProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 10;
-  static constexpr uint16_t ESTIMATED_SIZE = 129;
+  static constexpr uint16_t ESTIMATED_SIZE = 219;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "device_info_response"; }
 #endif
@@ -441,6 +471,9 @@ class DeviceInfoResponse : public ProtoMessage {
   std::string suggested_area{};
   std::string bluetooth_mac_address{};
   bool api_encryption_supported{false};
+  std::vector<DeviceInfo> devices{};
+  std::vector<AreaInfo> areas{};
+  AreaInfo area{};
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(uint32_t &total_size) const override;
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -493,7 +526,7 @@ class SubscribeStatesRequest : public ProtoMessage {
 class ListEntitiesBinarySensorResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 12;
-  static constexpr uint16_t ESTIMATED_SIZE = 56;
+  static constexpr uint16_t ESTIMATED_SIZE = 60;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_binary_sensor_response"; }
 #endif
@@ -532,7 +565,7 @@ class BinarySensorStateResponse : public StateResponseProtoMessage {
 class ListEntitiesCoverResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 13;
-  static constexpr uint16_t ESTIMATED_SIZE = 62;
+  static constexpr uint16_t ESTIMATED_SIZE = 66;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_cover_response"; }
 #endif
@@ -601,7 +634,7 @@ class CoverCommandRequest : public ProtoMessage {
 class ListEntitiesFanResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 14;
-  static constexpr uint16_t ESTIMATED_SIZE = 73;
+  static constexpr uint16_t ESTIMATED_SIZE = 77;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_fan_response"; }
 #endif
@@ -679,7 +712,7 @@ class FanCommandRequest : public ProtoMessage {
 class ListEntitiesLightResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 15;
-  static constexpr uint16_t ESTIMATED_SIZE = 85;
+  static constexpr uint16_t ESTIMATED_SIZE = 90;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_light_response"; }
 #endif
@@ -780,7 +813,7 @@ class LightCommandRequest : public ProtoMessage {
 class ListEntitiesSensorResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 16;
-  static constexpr uint16_t ESTIMATED_SIZE = 73;
+  static constexpr uint16_t ESTIMATED_SIZE = 77;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_sensor_response"; }
 #endif
@@ -823,7 +856,7 @@ class SensorStateResponse : public StateResponseProtoMessage {
 class ListEntitiesSwitchResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 17;
-  static constexpr uint16_t ESTIMATED_SIZE = 56;
+  static constexpr uint16_t ESTIMATED_SIZE = 60;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_switch_response"; }
 #endif
@@ -880,7 +913,7 @@ class SwitchCommandRequest : public ProtoMessage {
 class ListEntitiesTextSensorResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 18;
-  static constexpr uint16_t ESTIMATED_SIZE = 54;
+  static constexpr uint16_t ESTIMATED_SIZE = 58;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_text_sensor_response"; }
 #endif
@@ -1196,7 +1229,7 @@ class ExecuteServiceRequest : public ProtoMessage {
 class ListEntitiesCameraResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 43;
-  static constexpr uint16_t ESTIMATED_SIZE = 45;
+  static constexpr uint16_t ESTIMATED_SIZE = 49;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_camera_response"; }
 #endif
@@ -1253,7 +1286,7 @@ class CameraImageRequest : public ProtoMessage {
 class ListEntitiesClimateResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 46;
-  static constexpr uint16_t ESTIMATED_SIZE = 151;
+  static constexpr uint16_t ESTIMATED_SIZE = 156;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_climate_response"; }
 #endif
@@ -1362,7 +1395,7 @@ class ClimateCommandRequest : public ProtoMessage {
 class ListEntitiesNumberResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 49;
-  static constexpr uint16_t ESTIMATED_SIZE = 80;
+  static constexpr uint16_t ESTIMATED_SIZE = 84;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_number_response"; }
 #endif
@@ -1423,7 +1456,7 @@ class NumberCommandRequest : public ProtoMessage {
 class ListEntitiesSelectResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 52;
-  static constexpr uint16_t ESTIMATED_SIZE = 63;
+  static constexpr uint16_t ESTIMATED_SIZE = 67;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_select_response"; }
 #endif
@@ -1481,7 +1514,7 @@ class SelectCommandRequest : public ProtoMessage {
 class ListEntitiesSirenResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 55;
-  static constexpr uint16_t ESTIMATED_SIZE = 67;
+  static constexpr uint16_t ESTIMATED_SIZE = 71;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_siren_response"; }
 #endif
@@ -1547,7 +1580,7 @@ class SirenCommandRequest : public ProtoMessage {
 class ListEntitiesLockResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 58;
-  static constexpr uint16_t ESTIMATED_SIZE = 60;
+  static constexpr uint16_t ESTIMATED_SIZE = 64;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_lock_response"; }
 #endif
@@ -1609,7 +1642,7 @@ class LockCommandRequest : public ProtoMessage {
 class ListEntitiesButtonResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 61;
-  static constexpr uint16_t ESTIMATED_SIZE = 54;
+  static constexpr uint16_t ESTIMATED_SIZE = 58;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_button_response"; }
 #endif
@@ -1662,7 +1695,7 @@ class MediaPlayerSupportedFormat : public ProtoMessage {
 class ListEntitiesMediaPlayerResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 63;
-  static constexpr uint16_t ESTIMATED_SIZE = 81;
+  static constexpr uint16_t ESTIMATED_SIZE = 85;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_media_player_response"; }
 #endif
@@ -2532,7 +2565,7 @@ class VoiceAssistantSetConfiguration : public ProtoMessage {
 class ListEntitiesAlarmControlPanelResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 94;
-  static constexpr uint16_t ESTIMATED_SIZE = 53;
+  static constexpr uint16_t ESTIMATED_SIZE = 57;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_alarm_control_panel_response"; }
 #endif
@@ -2592,7 +2625,7 @@ class AlarmControlPanelCommandRequest : public ProtoMessage {
 class ListEntitiesTextResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 97;
-  static constexpr uint16_t ESTIMATED_SIZE = 64;
+  static constexpr uint16_t ESTIMATED_SIZE = 68;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_text_response"; }
 #endif
@@ -2653,7 +2686,7 @@ class TextCommandRequest : public ProtoMessage {
 class ListEntitiesDateResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 100;
-  static constexpr uint16_t ESTIMATED_SIZE = 45;
+  static constexpr uint16_t ESTIMATED_SIZE = 49;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_date_response"; }
 #endif
@@ -2713,7 +2746,7 @@ class DateCommandRequest : public ProtoMessage {
 class ListEntitiesTimeResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 103;
-  static constexpr uint16_t ESTIMATED_SIZE = 45;
+  static constexpr uint16_t ESTIMATED_SIZE = 49;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_time_response"; }
 #endif
@@ -2773,7 +2806,7 @@ class TimeCommandRequest : public ProtoMessage {
 class ListEntitiesEventResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 107;
-  static constexpr uint16_t ESTIMATED_SIZE = 72;
+  static constexpr uint16_t ESTIMATED_SIZE = 76;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_event_response"; }
 #endif
@@ -2811,7 +2844,7 @@ class EventResponse : public StateResponseProtoMessage {
 class ListEntitiesValveResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 109;
-  static constexpr uint16_t ESTIMATED_SIZE = 60;
+  static constexpr uint16_t ESTIMATED_SIZE = 64;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_valve_response"; }
 #endif
@@ -2873,7 +2906,7 @@ class ValveCommandRequest : public ProtoMessage {
 class ListEntitiesDateTimeResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 112;
-  static constexpr uint16_t ESTIMATED_SIZE = 45;
+  static constexpr uint16_t ESTIMATED_SIZE = 49;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_date_time_response"; }
 #endif
@@ -2928,7 +2961,7 @@ class DateTimeCommandRequest : public ProtoMessage {
 class ListEntitiesUpdateResponse : public InfoResponseProtoMessage {
  public:
   static constexpr uint16_t MESSAGE_TYPE = 116;
-  static constexpr uint16_t ESTIMATED_SIZE = 54;
+  static constexpr uint16_t ESTIMATED_SIZE = 58;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   static constexpr const char *message_name() { return "list_entities_update_response"; }
 #endif

esphome/config_validation.py

@@ -1,5 +1,7 @@
 """Helpers for config validation using voluptuous."""
 
+from __future__ import annotations
+
 from contextlib import contextmanager
 from dataclasses import dataclass
 from datetime import datetime
@@ -29,6 +31,7 @@ from esphome.const import (
     CONF_COMMAND_RETAIN,
     CONF_COMMAND_TOPIC,
     CONF_DAY,
+    CONF_DEVICE_ID,
     CONF_DISABLED_BY_DEFAULT,
     CONF_DISCOVERY,
     CONF_ENTITY_CATEGORY,
@@ -355,6 +358,13 @@ def icon(value):
     )
 
 
+def sub_device_id(value: str | None) -> core.ID:
+    # Lazy import to avoid circular imports
+    from esphome.core.config import Device
+
+    return use_id(Device)(value)
+
+
 def boolean(value):
     """Validate the given config option to be a boolean.
 
@@ -1896,6 +1906,7 @@ ENTITY_BASE_SCHEMA = Schema(
         Optional(CONF_DISABLED_BY_DEFAULT, default=False): boolean,
         Optional(CONF_ICON): icon,
         Optional(CONF_ENTITY_CATEGORY): entity_category,
+        Optional(CONF_DEVICE_ID): sub_device_id,
     }
 )
 
@@ -1964,7 +1975,7 @@ class Version:
         return f"{self.major}.{self.minor}.{self.patch}"
 
     @classmethod
-    def parse(cls, value: str) -> "Version":
+    def parse(cls, value: str) -> Version:
         match = re.match(r"^(\d+).(\d+).(\d+)-?\w*$", value)
         if match is None:
             raise ValueError(f"Not a valid version number {value}")

esphome/const.py

@@ -56,6 +56,8 @@ CONF_AP = "ap"
 CONF_APPARENT_POWER = "apparent_power"
 CONF_ARDUINO_VERSION = "arduino_version"
 CONF_AREA = "area"
+CONF_AREA_ID = "area_id"
+CONF_AREAS = "areas"
 CONF_ARGS = "args"
 CONF_ASSUMED_STATE = "assumed_state"
 CONF_AT = "at"
@@ -217,6 +219,7 @@ CONF_DEST = "dest"
 CONF_DEVICE = "device"
 CONF_DEVICE_CLASS = "device_class"
 CONF_DEVICE_FACTOR = "device_factor"
+CONF_DEVICE_ID = "device_id"
 CONF_DEVICES = "devices"
 CONF_DIELECTRIC_CONSTANT = "dielectric_constant"
 CONF_DIMENSIONS = "dimensions"

esphome/core/application.h

@@ -10,6 +10,13 @@
 #include "esphome/core/runtime_stats.h"
 #include "esphome/core/scheduler.h"
 
+#ifdef USE_DEVICES
+#include "esphome/core/device.h"
+#endif
+#ifdef USE_AREAS
+#include "esphome/core/area.h"
+#endif
+
 #ifdef USE_SOCKET_SELECT_SUPPORT
 #include <sys/select.h>
 #endif
@@ -88,7 +95,7 @@ static const uint32_t TEARDOWN_TIMEOUT_REBOOT_MS = 1000;  // 1 second for quick
 
 class Application {
  public:
-  void pre_setup(const std::string &name, const std::string &friendly_name, const char *area, const char *comment,
+  void pre_setup(const std::string &name, const std::string &friendly_name, const char *comment,
                  const char *compilation_time, bool name_add_mac_suffix) {
     arch_init();
     this->name_add_mac_suffix_ = name_add_mac_suffix;
@@ -103,11 +110,18 @@ class Application {
       this->name_ = name;
       this->friendly_name_ = friendly_name;
     }
-    this->area_ = area;
+    // area is now handled through the areas system
     this->comment_ = comment;
     this->compilation_time_ = compilation_time;
   }
 
+#ifdef USE_DEVICES
+  void register_device(Device *device) { this->devices_.push_back(device); }
+#endif
+#ifdef USE_AREAS
+  void register_area(Area *area) { this->areas_.push_back(area); }
+#endif
+
   void set_current_component(Component *component) { this->current_component_ = component; }
   Component *get_current_component() { return this->current_component_; }
 
@@ -265,6 +279,12 @@ class Application {
 #ifdef USE_UPDATE
   void reserve_update(size_t count) { this->updates_.reserve(count); }
 #endif
+#ifdef USE_AREAS
+  void reserve_area(size_t count) { this->areas_.reserve(count); }
+#endif
+#ifdef USE_DEVICES
+  void reserve_device(size_t count) { this->devices_.reserve(count); }
+#endif
 
   /// Register the component in this Application instance.
   template<class C> C *register_component(C *c) {
@@ -286,7 +306,15 @@ class Application {
   const std::string &get_friendly_name() const { return this->friendly_name_; }
 
   /// Get the area of this Application set by pre_setup().
-  std::string get_area() const { return this->area_ == nullptr ? "" : this->area_; }
+  const char *get_area() const {
+#ifdef USE_AREAS
+    // If we have areas registered, return the name of the first one (which is the top-level area)
+    if (!this->areas_.empty() && this->areas_[0] != nullptr) {
+      return this->areas_[0]->get_name();
+    }
+#endif
+    return "";
+  }
 
   /// Get the comment of this Application set by pre_setup().
   std::string get_comment() const { return this->comment_; }
@@ -347,6 +375,12 @@ class Application {
 
   uint8_t get_app_state() const { return this->app_state_; }
 
+#ifdef USE_DEVICES
+  const std::vector<Device *> &get_devices() { return this->devices_; }
+#endif
+#ifdef USE_AREAS
+  const std::vector<Area *> &get_areas() { return this->areas_; }
+#endif
 #ifdef USE_BINARY_SENSOR
   const std::vector<binary_sensor::BinarySensor *> &get_binary_sensors() { return this->binary_sensors_; }
   binary_sensor::BinarySensor *get_binary_sensor_by_key(uint32_t key, bool include_internal = false) {
@@ -623,6 +657,12 @@ class Application {
   uint16_t current_loop_index_{0};
   bool in_loop_{false};
 
+#ifdef USE_DEVICES
+  std::vector<Device *> devices_{};
+#endif
+#ifdef USE_AREAS
+  std::vector<Area *> areas_{};
+#endif
 #ifdef USE_BINARY_SENSOR
   std::vector<binary_sensor::BinarySensor *> binary_sensors_{};
 #endif
@@ -689,7 +729,6 @@ class Application {
 
   std::string name_;
   std::string friendly_name_;
-  const char *area_{nullptr};
   const char *comment_{nullptr};
   const char *compilation_time_{nullptr};
   bool name_add_mac_suffix_;

esphome/core/area.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <cstdint>
+
+namespace esphome {
+
+class Area {
+ public:
+  void set_area_id(uint32_t area_id) { this->area_id_ = area_id; }
+  uint32_t get_area_id() { return this->area_id_; }
+  void set_name(const char *name) { this->name_ = name; }
+  const char *get_name() { return this->name_; }
+
+ protected:
+  uint32_t area_id_{};
+  const char *name_ = "";
+};
+
+}  // namespace esphome

esphome/core/config.py

@@ -1,18 +1,24 @@
+from __future__ import annotations
+
 import logging
 import os
 from pathlib import Path
 
-from esphome import automation
+from esphome import automation, core
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_AREA,
+    CONF_AREA_ID,
+    CONF_AREAS,
     CONF_BUILD_PATH,
     CONF_COMMENT,
     CONF_COMPILE_PROCESS_LIMIT,
     CONF_DEBUG_SCHEDULER,
+    CONF_DEVICES,
     CONF_ESPHOME,
     CONF_FRIENDLY_NAME,
+    CONF_ID,
     CONF_INCLUDES,
     CONF_LIBRARIES,
     CONF_MIN_VERSION,
@@ -32,7 +38,13 @@ from esphome.const import (
     __version__ as ESPHOME_VERSION,
 )
 from esphome.core import CORE, coroutine_with_priority
-from esphome.helpers import copy_file_if_changed, get_str_env, walk_files
+from esphome.helpers import (
+    copy_file_if_changed,
+    fnv1a_32bit_hash,
+    get_str_env,
+    walk_files,
+)
+from esphome.types import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -48,7 +60,8 @@ LoopTrigger = cg.esphome_ns.class_(
 ProjectUpdateTrigger = cg.esphome_ns.class_(
     "ProjectUpdateTrigger", cg.Component, automation.Trigger.template(cg.std_string)
 )
-
+Device = cg.esphome_ns.class_("Device")
+Area = cg.esphome_ns.class_("Area")
 
 VALID_INCLUDE_EXTS = {".h", ".hpp", ".tcc", ".ino", ".cpp", ".c"}
 
@@ -71,6 +84,56 @@ def validate_hostname(config):
     return config
 
 
+def validate_ids_and_references(config: ConfigType) -> ConfigType:
+    """Validate that there are no hash collisions between IDs and that area_id references are valid.
+
+    This validation is critical because we use 32-bit hashes for performance on microcontrollers.
+    By detecting collisions at compile time, we prevent any runtime issues while maintaining
+    optimal performance on 32-bit platforms. In practice, with typical deployments having only
+    a handful of areas and devices, hash collisions are virtually impossible.
+    """
+
+    # Helper to check hash collisions
+    def check_hash_collision(
+        id_obj: core.ID,
+        hash_dict: dict[int, str],
+        item_type: str,
+        path: list[str | int],
+    ) -> None:
+        hash_val: int = fnv1a_32bit_hash(id_obj.id)
+        if hash_val in hash_dict and hash_dict[hash_val] != id_obj.id:
+            raise cv.Invalid(
+                f"{item_type} ID '{id_obj.id}' with hash {hash_val} collides with "
+                f"existing {item_type.lower()} ID '{hash_dict[hash_val]}'",
+                path=path,
+            )
+        hash_dict[hash_val] = id_obj.id
+
+    # Collect all areas
+    all_areas: list[dict[str, str | core.ID]] = []
+    if CONF_AREA in config:
+        all_areas.append(config[CONF_AREA])
+    all_areas.extend(config[CONF_AREAS])
+
+    # Validate area hash collisions and collect IDs
+    area_hashes: dict[int, str] = {}
+    area_ids: set[str] = set()
+    for area in all_areas:
+        area_id: core.ID = area[CONF_ID]
+        check_hash_collision(area_id, area_hashes, "Area", [CONF_AREAS, area_id.id])
+        area_ids.add(area_id.id)
+
+    # Validate device hash collisions and area references
+    device_hashes: dict[int, str] = {}
+    for device in config[CONF_DEVICES]:
+        device_id: core.ID = device[CONF_ID]
+        check_hash_collision(
+            device_id, device_hashes, "Device", [CONF_DEVICES, device_id.id]
+        )
+
+    return config
+
+
 def valid_include(value):
     # Look for "<...>" includes
     if value.startswith("<") and value.endswith(">"):
@@ -111,13 +174,32 @@ if "ESPHOME_DEFAULT_COMPILE_PROCESS_LIMIT" in os.environ:
 else:
     _compile_process_limit_default = cv.UNDEFINED
 
+AREA_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(CONF_ID): cv.declare_id(Area),
+        cv.Required(CONF_NAME): cv.string,
+    }
+)
+
+DEVICE_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(CONF_ID): cv.declare_id(Device),
+        cv.Required(CONF_NAME): cv.string,
+        cv.Optional(CONF_AREA_ID): cv.use_id(Area),
+    }
+)
+
+
+def validate_area_config(config: dict | str) -> dict[str, str | core.ID]:
+    return cv.maybe_simple_value(AREA_SCHEMA, key=CONF_NAME)(config)
+
 
 CONFIG_SCHEMA = cv.All(
     cv.Schema(
         {
             cv.Required(CONF_NAME): cv.valid_name,
             cv.Optional(CONF_FRIENDLY_NAME, ""): cv.string,
-            cv.Optional(CONF_AREA, ""): cv.string,
+            cv.Optional(CONF_AREA): validate_area_config,
             cv.Optional(CONF_COMMENT): cv.string,
             cv.Required(CONF_BUILD_PATH): cv.string,
             cv.Optional(CONF_PLATFORMIO_OPTIONS, default={}): cv.Schema(
@@ -167,11 +249,17 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(
                 CONF_COMPILE_PROCESS_LIMIT, default=_compile_process_limit_default
             ): cv.int_range(min=1, max=get_usable_cpu_count()),
+            cv.Optional(CONF_AREAS, default=[]): cv.ensure_list(AREA_SCHEMA),
+            cv.Optional(CONF_DEVICES, default=[]): cv.ensure_list(DEVICE_SCHEMA),
         }
     ),
     validate_hostname,
 )
 
+
+FINAL_VALIDATE_SCHEMA = cv.All(validate_ids_and_references)
+
+
 PRELOAD_CONFIG_SCHEMA = cv.Schema(
     {
         cv.Required(CONF_NAME): cv.valid_name,
@@ -336,7 +424,7 @@ async def _add_platform_reserves() -> None:
 
 
 @coroutine_with_priority(100.0)
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     cg.add_global(cg.global_ns.namespace("esphome").using)
     # These can be used by user lambdas, put them to default scope
     cg.add_global(cg.RawExpression("using std::isnan"))
@@ -347,7 +435,6 @@ async def to_code(config):
         cg.App.pre_setup(
             config[CONF_NAME],
             config[CONF_FRIENDLY_NAME],
-            config[CONF_AREA],
             config.get(CONF_COMMENT, ""),
             cg.RawExpression('__DATE__ ", " __TIME__'),
             config[CONF_NAME_ADD_MAC_SUFFIX],
@@ -417,3 +504,50 @@ async def to_code(config):
 
     if config[CONF_PLATFORMIO_OPTIONS]:
         CORE.add_job(_add_platformio_options, config[CONF_PLATFORMIO_OPTIONS])
+
+    # Process areas
+    all_areas: list[dict[str, str | core.ID]] = []
+    if CONF_AREA in config:
+        all_areas.append(config[CONF_AREA])
+    all_areas.extend(config[CONF_AREAS])
+
+    if all_areas:
+        cg.add(cg.RawStatement(f"App.reserve_area({len(all_areas)});"))
+        cg.add_define("USE_AREAS")
+
+        for area_conf in all_areas:
+            area_id: core.ID = area_conf[CONF_ID]
+            area_id_hash: int = fnv1a_32bit_hash(area_id.id)
+            area_name: str = area_conf[CONF_NAME]
+
+            area_var = cg.new_Pvariable(area_id)
+            cg.add(area_var.set_area_id(area_id_hash))
+            cg.add(area_var.set_name(area_name))
+            cg.add(cg.App.register_area(area_var))
+
+    # Process devices
+    devices: list[dict[str, str | core.ID]] = config[CONF_DEVICES]
+    if not devices:
+        return
+
+    # Reserve space for devices
+    cg.add(cg.RawStatement(f"App.reserve_device({len(devices)});"))
+    cg.add_define("USE_DEVICES")
+
+    # Process each device
+    for dev_conf in devices:
+        device_id: core.ID = dev_conf[CONF_ID]
+        device_id_hash = fnv1a_32bit_hash(device_id.id)
+        device_name: str = dev_conf[CONF_NAME]
+
+        dev = cg.new_Pvariable(device_id)
+        cg.add(dev.set_device_id(device_id_hash))
+        cg.add(dev.set_name(device_name))
+
+        # Set area if specified
+        if CONF_AREA_ID in dev_conf:
+            area_id: core.ID = dev_conf[CONF_AREA_ID]
+            area_id_hash = fnv1a_32bit_hash(area_id.id)
+            cg.add(dev.set_area_id(area_id_hash))
+
+        cg.add(cg.App.register_device(dev))

esphome/core/defines.h

@@ -20,6 +20,7 @@
 
 // Feature flags
 #define USE_ALARM_CONTROL_PANEL
+#define USE_AREAS
 #define USE_BINARY_SENSOR
 #define USE_BUTTON
 #define USE_CLIMATE
@@ -29,6 +30,7 @@
 #define USE_DATETIME_DATETIME
 #define USE_DATETIME_TIME
 #define USE_DEEP_SLEEP
+#define USE_DEVICES
 #define USE_DISPLAY
 #define USE_ESP32_IMPROV_STATE_CALLBACK
 #define USE_EVENT

esphome/core/device.h

@@ -0,0 +1,20 @@
+#pragma once
+
+namespace esphome {
+
+class Device {
+ public:
+  void set_device_id(uint32_t device_id) { this->device_id_ = device_id; }
+  uint32_t get_device_id() { return this->device_id_; }
+  void set_name(const char *name) { this->name_ = name; }
+  const char *get_name() { return this->name_; }
+  void set_area_id(uint32_t area_id) { this->area_id_ = area_id; }
+  uint32_t get_area_id() { return this->area_id_; }
+
+ protected:
+  uint32_t device_id_{};
+  uint32_t area_id_{};
+  const char *name_ = "";
+};
+
+}  // namespace esphome

esphome/core/entity_base.h

@@ -51,6 +51,12 @@ class EntityBase {
   std::string get_icon() const;
   void set_icon(const char *icon);
 
+#ifdef USE_DEVICES
+  // Get/set this entity's device id
+  uint32_t get_device_id() const { return this->device_id_; }
+  void set_device_id(const uint32_t device_id) { this->device_id_ = device_id; }
+#endif
+
   // Check if this entity has state
   bool has_state() const { return this->flags_.has_state; }
 
@@ -67,6 +73,9 @@ class EntityBase {
   const char *object_id_c_str_{nullptr};
   const char *icon_c_str_{nullptr};
   uint32_t object_id_hash_{};
+#ifdef USE_DEVICES
+  uint32_t device_id_{};
+#endif
 
   // Bit-packed flags to save memory (1 byte instead of 5)
   struct EntityFlags {

esphome/cpp_helpers.py

@@ -1,6 +1,7 @@
 import logging
 
 from esphome.const import (
+    CONF_DEVICE_ID,
     CONF_DISABLED_BY_DEFAULT,
     CONF_ENTITY_CATEGORY,
     CONF_ICON,
@@ -16,7 +17,7 @@ from esphome.core import CORE, ID, coroutine
 from esphome.coroutine import FakeAwaitable
 from esphome.cpp_generator import add, get_variable
 from esphome.cpp_types import App
-from esphome.helpers import sanitize, snake_case
+from esphome.helpers import fnv1a_32bit_hash, sanitize, snake_case
 from esphome.types import ConfigFragmentType, ConfigType
 from esphome.util import Registry, RegistryEntry
 
@@ -110,6 +111,9 @@ async def setup_entity(var, config):
         add(var.set_icon(config[CONF_ICON]))
     if CONF_ENTITY_CATEGORY in config:
         add(var.set_entity_category(config[CONF_ENTITY_CATEGORY]))
+    if CONF_DEVICE_ID in config:
+        device_id: ID = config[CONF_DEVICE_ID]
+        add(var.set_device_id(fnv1a_32bit_hash(device_id.id)))
 
 
 def extract_registry_entry_config(

esphome/dashboard/util/text.py

@@ -1,25 +1,9 @@
 from __future__ import annotations
 
-import unicodedata
+from esphome.helpers import slugify
-
-from esphome.const import ALLOWED_NAME_CHARS
 
 
-def strip_accents(value):
+def friendly_name_slugify(value: str) -> str:
-    return "".join(
+    """Convert a friendly name to a slug with dashes instead of underscores."""
-        c
+    # First use the standard slugify, then convert underscores to dashes
-        for c in unicodedata.normalize("NFD", str(value))
+    return slugify(value).replace("_", "-")
-        if unicodedata.category(c) != "Mn"
-    )
-
-
-def friendly_name_slugify(value):
-    value = (
-        strip_accents(value)
-        .lower()
-        .replace(" ", "-")
-        .replace("_", "-")
-        .replace("--", "-")
-        .strip("-")
-    )
-    return "".join(c for c in value if c in ALLOWED_NAME_CHARS)

esphome/helpers.py

@@ -29,6 +29,53 @@ def ensure_unique_string(preferred_string, current_strings):
     return test_string
 
 
+def fnv1a_32bit_hash(string: str) -> int:
+    """FNV-1a 32-bit hash function.
+
+    Note: This uses 32-bit hash instead of 64-bit for several reasons:
+    1. ESPHome targets 32-bit microcontrollers with limited RAM (often <320KB)
+    2. Using 64-bit hashes would double the RAM usage for storing IDs
+    3. 64-bit operations are slower on 32-bit processors
+
+    While there's a ~50% collision probability at ~77,000 unique IDs,
+    ESPHome validates for collisions at compile time, preventing any
+    runtime issues. In practice, most ESPHome installations only have
+    a handful of area_ids and device_ids (typically <10 areas and <100
+    devices), making collisions virtually impossible.
+    """
+    hash_value = 2166136261
+    for char in string:
+        hash_value ^= ord(char)
+        hash_value = (hash_value * 16777619) & 0xFFFFFFFF
+    return hash_value
+
+
+def strip_accents(value: str) -> str:
+    """Remove accents from a string."""
+    import unicodedata
+
+    return "".join(
+        c
+        for c in unicodedata.normalize("NFD", str(value))
+        if unicodedata.category(c) != "Mn"
+    )
+
+
+def slugify(value: str) -> str:
+    """Convert a string to a valid C++ identifier slug."""
+    from esphome.const import ALLOWED_NAME_CHARS
+
+    value = (
+        strip_accents(value)
+        .lower()
+        .replace(" ", "_")
+        .replace("-", "_")
+        .replace("__", "_")
+        .strip("_")
+    )
+    return "".join(c for c in value if c in ALLOWED_NAME_CHARS)
+
+
 def indent_all_but_first_and_last(text, padding="  "):
     lines = text.splitlines(True)
     if len(lines) <= 2:

tests/components/esphome/common.yaml

@@ -2,7 +2,9 @@ esphome:
   debug_scheduler: true
   platformio_options:
     board_build.flash_mode: dio
-  area: testing
+  area:
+    id: testing_area
+    name: Testing Area
   on_boot:
     logger.log: on_boot
   on_shutdown:
@@ -17,4 +19,20 @@ esphome:
     version: "1.1"
     on_update:
       logger.log: on_update
+  areas:
+    - id: another_area
+      name: Another area
+  devices:
+    - id: other_device
+      name: Another device
+      area_id: another_area
+    - id: test_device
+      name: Test device in main area
+      area_id: testing_area  # Reference the main area (not in areas)
+    - id: no_area_device
+      name: Device without area  # This device has no area_id
 
+binary_sensor:
+  - platform: template
+    name: Other device sensor
+    device_id: other_device

tests/dummy_main.cpp

@@ -12,7 +12,7 @@
 using namespace esphome;
 
 void setup() {
-  App.pre_setup("livingroom", "LivingRoom", "LivingRoomArea", "comment", __DATE__ ", " __TIME__, false);
+  App.pre_setup("livingroom", "LivingRoom", "comment", __DATE__ ", " __TIME__, false);
   auto *log = new logger::Logger(115200, 512);  // NOLINT
   log->pre_setup();
   log->set_uart_selection(logger::UART_SELECTION_UART0);

tests/integration/fixtures/areas_and_devices.yaml

@@ -0,0 +1,57 @@
+esphome:
+  name: areas-devices-test
+  # Define top-level area
+  area:
+    id: living_room_area
+    name: Living Room
+  # Define additional areas
+  areas:
+    - id: bedroom_area
+      name: Bedroom
+    - id: kitchen_area
+      name: Kitchen
+  # Define devices with area assignments
+  devices:
+    - id: light_controller_device
+      name: Light Controller
+      area_id: living_room_area  # Uses top-level area
+    - id: temp_sensor_device
+      name: Temperature Sensor
+      area_id: bedroom_area
+    - id: motion_detector_device
+      name: Motion Detector
+      area_id: living_room_area  # Reuses top-level area
+    - id: smart_switch_device
+      name: Smart Switch
+      area_id: kitchen_area
+
+host:
+api:
+logger:
+
+# Sensors assigned to different devices
+sensor:
+  - platform: template
+    name: Light Controller Sensor
+    device_id: light_controller_device
+    lambda: return 1.0;
+    update_interval: 0.1s
+
+  - platform: template
+    name: Temperature Sensor Reading
+    device_id: temp_sensor_device
+    lambda: return 2.0;
+    update_interval: 0.1s
+
+  - platform: template
+    name: Motion Detector Status
+    device_id: motion_detector_device
+    lambda: return 3.0;
+    update_interval: 0.1s
+
+  - platform: template
+    name: Smart Switch Power
+    device_id: smart_switch_device
+    lambda: return 4.0;
+    update_interval: 0.1s
+

tests/integration/fixtures/legacy_area.yaml

@@ -0,0 +1,15 @@
+esphome:
+  name: legacy-area-test
+  # Using legacy string-based area configuration
+  area: Master Bedroom
+
+host:
+api:
+logger:
+
+# Simple sensor to ensure the device compiles and runs
+sensor:
+  - platform: template
+    name: Test Sensor
+    lambda: return 42.0;
+    update_interval: 1s

tests/integration/test_areas_and_devices.py

@@ -0,0 +1,121 @@
+"""Integration test for areas and devices feature."""
+
+from __future__ import annotations
+
+import asyncio
+
+from aioesphomeapi import EntityState
+import pytest
+
+from .types import APIClientConnectedFactory, RunCompiledFunction
+
+
+@pytest.mark.asyncio
+async def test_areas_and_devices(
+    yaml_config: str,
+    run_compiled: RunCompiledFunction,
+    api_client_connected: APIClientConnectedFactory,
+) -> None:
+    """Test areas and devices configuration with entity mapping."""
+    async with run_compiled(yaml_config), api_client_connected() as client:
+        # Get device info which includes areas and devices
+        device_info = await client.device_info()
+        assert device_info is not None
+
+        # Verify areas are reported
+        areas = device_info.areas
+        assert len(areas) >= 2, f"Expected at least 2 areas, got {len(areas)}"
+
+        # Find our specific areas
+        main_area = next((a for a in areas if a.name == "Living Room"), None)
+        bedroom_area = next((a for a in areas if a.name == "Bedroom"), None)
+        kitchen_area = next((a for a in areas if a.name == "Kitchen"), None)
+
+        assert main_area is not None, "Living Room area not found"
+        assert bedroom_area is not None, "Bedroom area not found"
+        assert kitchen_area is not None, "Kitchen area not found"
+
+        # Verify devices are reported
+        devices = device_info.devices
+        assert len(devices) >= 4, f"Expected at least 4 devices, got {len(devices)}"
+
+        # Find our specific devices
+        light_controller = next(
+            (d for d in devices if d.name == "Light Controller"), None
+        )
+        temp_sensor = next((d for d in devices if d.name == "Temperature Sensor"), None)
+        motion_detector = next(
+            (d for d in devices if d.name == "Motion Detector"), None
+        )
+        smart_switch = next((d for d in devices if d.name == "Smart Switch"), None)
+
+        assert light_controller is not None, "Light Controller device not found"
+        assert temp_sensor is not None, "Temperature Sensor device not found"
+        assert motion_detector is not None, "Motion Detector device not found"
+        assert smart_switch is not None, "Smart Switch device not found"
+
+        # Verify device area assignments
+        assert light_controller.area_id == main_area.area_id, (
+            "Light Controller should be in Living Room"
+        )
+        assert temp_sensor.area_id == bedroom_area.area_id, (
+            "Temperature Sensor should be in Bedroom"
+        )
+        assert motion_detector.area_id == main_area.area_id, (
+            "Motion Detector should be in Living Room"
+        )
+        assert smart_switch.area_id == kitchen_area.area_id, (
+            "Smart Switch should be in Kitchen"
+        )
+
+        # Verify suggested_area is set to the top-level area name
+        assert device_info.suggested_area == "Living Room", (
+            f"Expected suggested_area to be 'Living Room', got '{device_info.suggested_area}'"
+        )
+
+        # Get entity list to verify device_id mapping
+        entities = await client.list_entities_services()
+
+        # Collect sensor entities
+        sensor_entities = [e for e in entities[0] if hasattr(e, "device_id")]
+        assert len(sensor_entities) >= 4, (
+            f"Expected at least 4 sensor entities, got {len(sensor_entities)}"
+        )
+
+        # Subscribe to states to get sensor values
+        loop = asyncio.get_running_loop()
+        states: dict[int, EntityState] = {}
+        states_future: asyncio.Future[bool] = loop.create_future()
+
+        def on_state(state: EntityState) -> None:
+            states[state.key] = state
+            # Check if we have all expected sensor states
+            if len(states) >= 4 and not states_future.done():
+                states_future.set_result(True)
+
+        client.subscribe_states(on_state)
+
+        # Wait for sensor states
+        try:
+            await asyncio.wait_for(states_future, timeout=10.0)
+        except asyncio.TimeoutError:
+            pytest.fail(
+                f"Did not receive all sensor states within 10 seconds. "
+                f"Received {len(states)} states"
+            )
+
+        # Verify we have sensor entities with proper device_id assignments
+        device_id_mapping = {
+            "Light Controller Sensor": light_controller.device_id,
+            "Temperature Sensor Reading": temp_sensor.device_id,
+            "Motion Detector Status": motion_detector.device_id,
+            "Smart Switch Power": smart_switch.device_id,
+        }
+
+        for entity in sensor_entities:
+            if entity.name in device_id_mapping:
+                expected_device_id = device_id_mapping[entity.name]
+                assert entity.device_id == expected_device_id, (
+                    f"{entity.name} has device_id {entity.device_id}, "
+                    f"expected {expected_device_id}"
+                )

tests/integration/test_legacy_area.py

@@ -0,0 +1,41 @@
+"""Integration test for legacy string-based area configuration."""
+
+from __future__ import annotations
+
+import pytest
+
+from .types import APIClientConnectedFactory, RunCompiledFunction
+
+
+@pytest.mark.asyncio
+async def test_legacy_area(
+    yaml_config: str,
+    run_compiled: RunCompiledFunction,
+    api_client_connected: APIClientConnectedFactory,
+) -> None:
+    """Test legacy string-based area configuration."""
+    async with run_compiled(yaml_config), api_client_connected() as client:
+        # Get device info which includes areas
+        device_info = await client.device_info()
+        assert device_info is not None
+
+        # Verify the area is reported (should be converted to structured format)
+        areas = device_info.areas
+        assert len(areas) == 1, f"Expected exactly 1 area, got {len(areas)}"
+
+        # Find the area - should be slugified from "Master Bedroom"
+        area = areas[0]
+        assert area.name == "Master Bedroom", (
+            f"Expected area name 'Master Bedroom', got '{area.name}'"
+        )
+
+        # Verify area.id is set (it should be a hash)
+        assert area.area_id > 0, "Area ID should be a positive hash value"
+
+        # The suggested_area field should be set for backward compatibility
+        assert device_info.suggested_area == "Master Bedroom", (
+            f"Expected suggested_area to be 'Master Bedroom', got '{device_info.suggested_area}'"
+        )
+
+        # Verify deprecated warning would have been logged during compilation
+        # (We can't check logs directly in integration tests, but the code should work)

tests/unit_tests/core/test_config.py

@@ -0,0 +1,256 @@
+"""Unit tests for core config functionality including areas and devices."""
+
+from collections.abc import Callable
+from pathlib import Path
+from typing import Any
+from unittest.mock import patch
+
+import pytest
+
+from esphome import config, config_validation as cv, core, yaml_util
+from esphome.config import Config
+from esphome.const import CONF_AREA, CONF_AREAS, CONF_DEVICES
+from esphome.core import CORE
+from esphome.core.config import Area, validate_area_config
+
+FIXTURES_DIR = Path(__file__).parent.parent / "fixtures" / "core" / "config"
+
+
+@pytest.fixture
+def yaml_file(tmp_path: Path) -> Callable[[str], str]:
+    """Create a temporary YAML file for testing."""
+
+    def _yaml_file(content: str) -> str:
+        yaml_path = tmp_path / "test.yaml"
+        yaml_path.write_text(content)
+        return str(yaml_path)
+
+    return _yaml_file
+
+
+@pytest.fixture(autouse=True)
+def reset_core():
+    """Reset CORE after each test."""
+    yield
+    CORE.reset()
+
+
+def load_config_from_yaml(
+    yaml_file: Callable[[str], str], yaml_content: str
+) -> Config | None:
+    """Load configuration from YAML content."""
+    yaml_path = yaml_file(yaml_content)
+    parsed_yaml = yaml_util.load_yaml(yaml_path)
+
+    # Mock yaml_util.load_yaml to return our parsed content
+    with (
+        patch.object(yaml_util, "load_yaml", return_value=parsed_yaml),
+        patch.object(CORE, "config_path", yaml_path),
+    ):
+        return config.read_config({})
+
+
+def load_config_from_fixture(
+    yaml_file: Callable[[str], str], fixture_name: str
+) -> Config | None:
+    """Load configuration from a fixture file."""
+    fixture_path = FIXTURES_DIR / fixture_name
+    yaml_content = fixture_path.read_text()
+    return load_config_from_yaml(yaml_file, yaml_content)
+
+
+def test_validate_area_config_with_string() -> None:
+    """Test that string area config is converted to structured format."""
+    result: dict[str, Any] = validate_area_config("Living Room")
+
+    assert isinstance(result, dict)
+    assert "id" in result
+    assert "name" in result
+    assert result["name"] == "Living Room"
+    assert isinstance(result["id"], core.ID)
+    assert result["id"].is_declaration
+    assert not result["id"].is_manual
+
+
+def test_validate_area_config_with_dict() -> None:
+    """Test that structured area config passes through unchanged."""
+    area_id = cv.declare_id(Area)("test_area")
+    input_config: dict[str, Any] = {
+        "id": area_id,
+        "name": "Test Area",
+    }
+
+    result: dict[str, Any] = validate_area_config(input_config)
+
+    assert result == input_config
+    assert result["id"] == area_id
+    assert result["name"] == "Test Area"
+
+
+def test_device_with_valid_area_id(yaml_file: Callable[[str], str]) -> None:
+    """Test that device with valid area_id works correctly."""
+    result = load_config_from_fixture(yaml_file, "valid_area_device.yaml")
+    assert result is not None
+
+    esphome_config = result["esphome"]
+
+    # Verify areas were parsed correctly
+    assert CONF_AREAS in esphome_config
+    areas = esphome_config[CONF_AREAS]
+    assert len(areas) == 1
+    assert areas[0]["id"].id == "bedroom_area"
+    assert areas[0]["name"] == "Bedroom"
+
+    # Verify devices were parsed correctly
+    assert CONF_DEVICES in esphome_config
+    devices = esphome_config[CONF_DEVICES]
+    assert len(devices) == 1
+    assert devices[0]["id"].id == "test_device"
+    assert devices[0]["name"] == "Test Device"
+    assert devices[0]["area_id"].id == "bedroom_area"
+
+
+def test_multiple_areas_and_devices(yaml_file: Callable[[str], str]) -> None:
+    """Test multiple areas and devices configuration."""
+    result = load_config_from_fixture(yaml_file, "multiple_areas_devices.yaml")
+    assert result is not None
+
+    esphome_config = result["esphome"]
+
+    # Verify main area
+    assert CONF_AREA in esphome_config
+    main_area = esphome_config[CONF_AREA]
+    assert main_area["id"].id == "main_area"
+    assert main_area["name"] == "Main Area"
+
+    # Verify additional areas
+    assert CONF_AREAS in esphome_config
+    areas = esphome_config[CONF_AREAS]
+    assert len(areas) == 2
+    area_ids = {area["id"].id for area in areas}
+    assert area_ids == {"area1", "area2"}
+
+    # Verify devices
+    assert CONF_DEVICES in esphome_config
+    devices = esphome_config[CONF_DEVICES]
+    assert len(devices) == 3
+
+    # Check device-area associations
+    device_area_map = {dev["id"].id: dev["area_id"].id for dev in devices}
+    assert device_area_map == {
+        "device1": "main_area",
+        "device2": "area1",
+        "device3": "area2",
+    }
+
+
+def test_legacy_string_area(
+    yaml_file: Callable[[str], str], caplog: pytest.LogCaptureFixture
+) -> None:
+    """Test legacy string area configuration with deprecation warning."""
+    result = load_config_from_fixture(yaml_file, "legacy_string_area.yaml")
+    assert result is not None
+
+    esphome_config = result["esphome"]
+
+    # Verify the string was converted to structured format
+    assert CONF_AREA in esphome_config
+    area = esphome_config[CONF_AREA]
+    assert isinstance(area, dict)
+    assert area["name"] == "Living Room"
+    assert isinstance(area["id"], core.ID)
+    assert area["id"].is_declaration
+    assert not area["id"].is_manual
+
+
+def test_area_id_collision(
+    yaml_file: Callable[[str], str], capsys: pytest.CaptureFixture[str]
+) -> None:
+    """Test that duplicate area IDs are detected."""
+    result = load_config_from_fixture(yaml_file, "area_id_collision.yaml")
+    assert result is None
+
+    # Check for the specific error message in stdout
+    captured = capsys.readouterr()
+    # Exact duplicates are now caught by IDPassValidationStep
+    assert "ID duplicate_id redefined! Check esphome->area->id." in captured.out
+
+
+def test_device_without_area(yaml_file: Callable[[str], str]) -> None:
+    """Test that devices without area_id work correctly."""
+    result = load_config_from_fixture(yaml_file, "device_without_area.yaml")
+    assert result is not None
+
+    esphome_config = result["esphome"]
+
+    # Verify device was parsed
+    assert CONF_DEVICES in esphome_config
+    devices = esphome_config[CONF_DEVICES]
+    assert len(devices) == 1
+
+    device = devices[0]
+    assert device["id"].id == "test_device"
+    assert device["name"] == "Test Device"
+
+    # Verify no area_id is present
+    assert "area_id" not in device
+
+
+def test_device_with_invalid_area_id(
+    yaml_file: Callable[[str], str], capsys: pytest.CaptureFixture[str]
+) -> None:
+    """Test that device with non-existent area_id fails validation."""
+    result = load_config_from_fixture(yaml_file, "device_invalid_area.yaml")
+    assert result is None
+
+    # Check for the specific error message in stdout
+    captured = capsys.readouterr()
+    print(captured.out)
+    assert (
+        "Couldn't find ID 'nonexistent_area'. Please check you have defined an ID with that name in your configuration."
+        in captured.out
+    )
+
+
+def test_device_id_hash_collision(
+    yaml_file: Callable[[str], str], capsys: pytest.CaptureFixture[str]
+) -> None:
+    """Test that device IDs with hash collisions are detected."""
+    result = load_config_from_fixture(yaml_file, "device_id_collision.yaml")
+    assert result is None
+
+    # Check for the specific error message about hash collision
+    captured = capsys.readouterr()
+    # The error message shows the ID that collides and includes the hash value
+    assert (
+        "Device ID 'd6ka' with hash 3082558663 collides with existing device ID 'test_2258'"
+        in captured.out
+    )
+
+
+def test_area_id_hash_collision(
+    yaml_file: Callable[[str], str], capsys: pytest.CaptureFixture[str]
+) -> None:
+    """Test that area IDs with hash collisions are detected."""
+    result = load_config_from_fixture(yaml_file, "area_id_hash_collision.yaml")
+    assert result is None
+
+    # Check for the specific error message about hash collision
+    captured = capsys.readouterr()
+    # The error message shows the ID that collides and includes the hash value
+    assert (
+        "Area ID 'd6ka' with hash 3082558663 collides with existing area ID 'test_2258'"
+        in captured.out
+    )
+
+
+def test_device_duplicate_id(
+    yaml_file: Callable[[str], str], capsys: pytest.CaptureFixture[str]
+) -> None:
+    """Test that duplicate device IDs are detected by IDPassValidationStep."""
+    result = load_config_from_fixture(yaml_file, "device_duplicate_id.yaml")
+    assert result is None
+
+    # Check for the specific error message from IDPassValidationStep
+    captured = capsys.readouterr()
+    assert "ID duplicate_device redefined!" in captured.out

tests/unit_tests/fixtures/core/config/area_id_collision.yaml

@@ -0,0 +1,10 @@
+esphome:
+  name: test-collision
+  area:
+    id: duplicate_id
+    name: Area 1
+  areas:
+    - id: duplicate_id
+      name: Area 2
+
+host:

tests/unit_tests/fixtures/core/config/area_id_hash_collision.yaml

@@ -0,0 +1,10 @@
+esphome:
+  name: test
+  areas:
+    - id: test_2258
+      name: "Area 1"
+    - id: d6ka
+      name: "Area 2"
+
+esp32:
+  board: esp32dev

tests/unit_tests/fixtures/core/config/device_duplicate_id.yaml

@@ -0,0 +1,10 @@
+esphome:
+  name: test
+  devices:
+    - id: duplicate_device
+      name: "Device 1"
+    - id: duplicate_device
+      name: "Device 2"
+
+esp32:
+  board: esp32dev

tests/unit_tests/fixtures/core/config/device_id_collision.yaml

@@ -0,0 +1,10 @@
+esphome:
+  name: test
+  devices:
+    - id: test_2258
+      name: "Device 1"
+    - id: d6ka
+      name: "Device 2"
+
+esp32:
+  board: esp32dev

tests/unit_tests/fixtures/core/config/device_invalid_area.yaml

@@ -0,0 +1,12 @@
+esphome:
+  name: test
+  areas:
+    - id: valid_area
+      name: "Valid Area"
+  devices:
+    - id: test_device
+      name: "Test Device"
+      area_id: nonexistent_area
+
+esp32:
+  board: esp32dev

tests/unit_tests/fixtures/core/config/device_without_area.yaml

@@ -0,0 +1,7 @@
+esphome:
+  name: test-device-no-area
+  devices:
+    - id: test_device
+      name: Test Device
+
+host:

tests/unit_tests/fixtures/core/config/legacy_string_area.yaml

@@ -0,0 +1,5 @@
+esphome:
+  name: test-legacy-area
+  area: Living Room
+
+host:

tests/unit_tests/fixtures/core/config/multiple_areas_devices.yaml

@@ -0,0 +1,22 @@
+esphome:
+  name: test-multiple
+  area:
+    id: main_area
+    name: Main Area
+  areas:
+    - id: area1
+      name: Area 1
+    - id: area2
+      name: Area 2
+  devices:
+    - id: device1
+      name: Device 1
+      area_id: main_area
+    - id: device2
+      name: Device 2
+      area_id: area1
+    - id: device3
+      name: Device 3
+      area_id: area2
+
+host:

tests/unit_tests/fixtures/core/config/valid_area_device.yaml

@@ -0,0 +1,11 @@
+esphome:
+  name: test-valid-area
+  areas:
+    - id: bedroom_area
+      name: Bedroom
+  devices:
+    - id: test_device
+      name: Test Device
+      area_id: bedroom_area
+
+host: