Added alarm processing for Haier component (hOn protocol) (#5965)

esphome/components/haier/climate.py

@@ -18,6 +18,7 @@ from esphome.const import (
     CONF_SUPPORTED_SWING_MODES,
     CONF_TARGET_TEMPERATURE,
     CONF_TEMPERATURE_STEP,
+    CONF_TRIGGER_ID,
     CONF_VISUAL,
     CONF_WIFI,
     DEVICE_CLASS_TEMPERATURE,
@@ -49,6 +50,8 @@ CONF_CONTROL_METHOD = "control_method"
 CONF_CONTROL_PACKET_SIZE = "control_packet_size"
 CONF_DISPLAY = "display"
 CONF_HORIZONTAL_AIRFLOW = "horizontal_airflow"
+CONF_ON_ALARM_START = "on_alarm_start"
+CONF_ON_ALARM_END = "on_alarm_end"
 CONF_OUTDOOR_TEMPERATURE = "outdoor_temperature"
 CONF_VERTICAL_AIRFLOW = "vertical_airflow"
 CONF_WIFI_SIGNAL = "wifi_signal"
@@ -85,8 +88,8 @@ AIRFLOW_HORIZONTAL_DIRECTION_OPTIONS = {
 }
 
 SUPPORTED_SWING_MODES_OPTIONS = {
-    "OFF": ClimateSwingMode.CLIMATE_SWING_OFF,  # always available
+    "OFF": ClimateSwingMode.CLIMATE_SWING_OFF,
-    "VERTICAL": ClimateSwingMode.CLIMATE_SWING_VERTICAL,  # always available
+    "VERTICAL": ClimateSwingMode.CLIMATE_SWING_VERTICAL,
     "HORIZONTAL": ClimateSwingMode.CLIMATE_SWING_HORIZONTAL,
     "BOTH": ClimateSwingMode.CLIMATE_SWING_BOTH,
 }
@@ -101,13 +104,15 @@ SUPPORTED_CLIMATE_MODES_OPTIONS = {
 }
 
 SUPPORTED_CLIMATE_PRESETS_SMARTAIR2_OPTIONS = {
+    "AWAY": ClimatePreset.CLIMATE_PRESET_AWAY,
     "BOOST": ClimatePreset.CLIMATE_PRESET_BOOST,
     "COMFORT": ClimatePreset.CLIMATE_PRESET_COMFORT,
 }
 
 SUPPORTED_CLIMATE_PRESETS_HON_OPTIONS = {
-    "ECO": ClimatePreset.CLIMATE_PRESET_ECO,
+    "AWAY": ClimatePreset.CLIMATE_PRESET_AWAY,
     "BOOST": ClimatePreset.CLIMATE_PRESET_BOOST,
+    "ECO": ClimatePreset.CLIMATE_PRESET_ECO,
     "SLEEP": ClimatePreset.CLIMATE_PRESET_SLEEP,
 }
 
@@ -118,6 +123,16 @@ SUPPORTED_HON_CONTROL_METHODS = {
     "SET_SINGLE_PARAMETER": HonControlMethod.SET_SINGLE_PARAMETER,
 }
 
+HaierAlarmStartTrigger = haier_ns.class_(
+    "HaierAlarmStartTrigger",
+    automation.Trigger.template(cg.uint8, cg.const_char_ptr),
+)
+
+HaierAlarmEndTrigger = haier_ns.class_(
+    "HaierAlarmEndTrigger",
+    automation.Trigger.template(cg.uint8, cg.const_char_ptr),
+)
+
 
 def validate_visual(config):
     if CONF_VISUAL in config:
@@ -200,9 +215,7 @@ CONFIG_SCHEMA = cv.All(
                     ): cv.boolean,
                     cv.Optional(
                         CONF_SUPPORTED_PRESETS,
-                        default=list(
+                        default=list(["BOOST", "COMFORT"]),  # No AWAY by default
-                            SUPPORTED_CLIMATE_PRESETS_SMARTAIR2_OPTIONS.keys()
-                        ),
                     ): cv.ensure_list(
                         cv.enum(SUPPORTED_CLIMATE_PRESETS_SMARTAIR2_OPTIONS, upper=True)
                     ),
@@ -222,7 +235,7 @@ CONFIG_SCHEMA = cv.All(
                     ): cv.int_range(min=PROTOCOL_CONTROL_PACKET_SIZE, max=50),
                     cv.Optional(
                         CONF_SUPPORTED_PRESETS,
-                        default=list(SUPPORTED_CLIMATE_PRESETS_HON_OPTIONS.keys()),
+                        default=list(["BOOST", "ECO", "SLEEP"]),  # No AWAY by default
                     ): cv.ensure_list(
                         cv.enum(SUPPORTED_CLIMATE_PRESETS_HON_OPTIONS, upper=True)
                     ),
@@ -233,6 +246,20 @@ CONFIG_SCHEMA = cv.All(
                         device_class=DEVICE_CLASS_TEMPERATURE,
                         state_class=STATE_CLASS_MEASUREMENT,
                     ),
+                    cv.Optional(CONF_ON_ALARM_START): automation.validate_automation(
+                        {
+                            cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
+                                HaierAlarmStartTrigger
+                            ),
+                        }
+                    ),
+                    cv.Optional(CONF_ON_ALARM_END): automation.validate_automation(
+                        {
+                            cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
+                                HaierAlarmEndTrigger
+                            ),
+                        }
+                    ),
                 }
             ),
         },
@@ -457,5 +484,15 @@ async def to_code(config):
                 config[CONF_CONTROL_PACKET_SIZE] - PROTOCOL_CONTROL_PACKET_SIZE
             )
         )
+    for conf in config.get(CONF_ON_ALARM_START, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(
+            trigger, [(cg.uint8, "code"), (cg.const_char_ptr, "message")], conf
+        )
+    for conf in config.get(CONF_ON_ALARM_END, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(
+            trigger, [(cg.uint8, "code"), (cg.const_char_ptr, "message")], conf
+        )
     # https://github.com/paveldn/HaierProtocol
     cg.add_library("pavlodn/HaierProtocol", "0.9.24")

esphome/components/haier/haier_base.cpp

@@ -25,13 +25,14 @@ const char *HaierClimateBase::phase_to_string_(ProtocolPhases phase) {
       "SENDING_INIT_1",
       "SENDING_INIT_2",
       "SENDING_FIRST_STATUS_REQUEST",
-      "SENDING_ALARM_STATUS_REQUEST",
+      "SENDING_FIRST_ALARM_STATUS_REQUEST",
       "IDLE",
       "SENDING_STATUS_REQUEST",
       "SENDING_UPDATE_SIGNAL_REQUEST",
       "SENDING_SIGNAL_LEVEL",
       "SENDING_CONTROL",
       "SENDING_ACTION_COMMAND",
+      "SENDING_ALARM_STATUS_REQUEST",
       "UNKNOWN"  // Should be the last!
   };
   static_assert(

esphome/components/haier/haier_base.h

@@ -64,7 +64,7 @@ class HaierClimateBase : public esphome::Component,
     SENDING_INIT_1 = 0,
     SENDING_INIT_2,
     SENDING_FIRST_STATUS_REQUEST,
-    SENDING_ALARM_STATUS_REQUEST,
+    SENDING_FIRST_ALARM_STATUS_REQUEST,
     // FUNCTIONAL STATE
     IDLE,
     SENDING_STATUS_REQUEST,
@@ -72,6 +72,7 @@ class HaierClimateBase : public esphome::Component,
     SENDING_SIGNAL_LEVEL,
     SENDING_CONTROL,
     SENDING_ACTION_COMMAND,
+    SENDING_ALARM_STATUS_REQUEST,
     NUM_PROTOCOL_PHASES
   };
   const char *phase_to_string_(ProtocolPhases phase);

esphome/components/haier/hon_climate.cpp

@@ -16,6 +16,7 @@ constexpr size_t SIGNAL_LEVEL_UPDATE_INTERVAL_MS = 10000;
 constexpr int PROTOCOL_OUTDOOR_TEMPERATURE_OFFSET = -64;
 constexpr uint8_t CONTROL_MESSAGE_RETRIES = 5;
 constexpr std::chrono::milliseconds CONTROL_MESSAGE_RETRIES_INTERVAL = std::chrono::milliseconds(500);
+constexpr size_t ALARM_STATUS_REQUEST_INTERVAL_MS = 600000;
 
 hon_protocol::VerticalSwingMode get_vertical_swing_mode(AirflowVerticalDirection direction) {
   switch (direction) {
@@ -110,6 +111,14 @@ void HonClimate::start_steri_cleaning() {
   }
 }
 
+void HonClimate::add_alarm_start_callback(std::function<void(uint8_t, const char *)> &&callback) {
+  this->alarm_start_callback_.add(std::move(callback));
+}
+
+void HonClimate::add_alarm_end_callback(std::function<void(uint8_t, const char *)> &&callback) {
+  this->alarm_end_callback_.add(std::move(callback));
+}
+
 haier_protocol::HandlerError HonClimate::get_device_version_answer_handler_(haier_protocol::FrameType request_type,
                                                                             haier_protocol::FrameType message_type,
                                                                             const uint8_t *data, size_t data_size) {
@@ -194,7 +203,7 @@ haier_protocol::HandlerError HonClimate::status_handler_(haier_protocol::FrameTy
       switch (this->protocol_phase_) {
         case ProtocolPhases::SENDING_FIRST_STATUS_REQUEST:
           ESP_LOGI(TAG, "First HVAC status received");
-          this->set_phase(ProtocolPhases::SENDING_ALARM_STATUS_REQUEST);
+          this->set_phase(ProtocolPhases::SENDING_FIRST_ALARM_STATUS_REQUEST);
           break;
         case ProtocolPhases::SENDING_ACTION_COMMAND:
           // Do nothing, phase will be changed in process_phase
@@ -251,12 +260,15 @@ haier_protocol::HandlerError HonClimate::get_alarm_status_answer_handler_(haier_
       this->set_phase(ProtocolPhases::IDLE);
       return haier_protocol::HandlerError::UNSUPPORTED_MESSAGE;
     }
-    if (this->protocol_phase_ != ProtocolPhases::SENDING_ALARM_STATUS_REQUEST) {
+    if ((this->protocol_phase_ != ProtocolPhases::SENDING_FIRST_ALARM_STATUS_REQUEST) &&
+        (this->protocol_phase_ != ProtocolPhases::SENDING_ALARM_STATUS_REQUEST)) {
       // Don't expect this answer now
       this->set_phase(ProtocolPhases::IDLE);
       return haier_protocol::HandlerError::UNEXPECTED_MESSAGE;
     }
-    memcpy(this->active_alarms_, data + 2, 8);
+    if (data_size < sizeof(active_alarms_) + 2)
+      return haier_protocol::HandlerError::WRONG_MESSAGE_STRUCTURE;
+    this->process_alarm_message_(data, data_size, this->protocol_phase_ >= ProtocolPhases::IDLE);
     this->set_phase(ProtocolPhases::IDLE);
     return haier_protocol::HandlerError::HANDLER_OK;
   } else {
@@ -265,6 +277,19 @@ haier_protocol::HandlerError HonClimate::get_alarm_status_answer_handler_(haier_
   }
 }
 
+haier_protocol::HandlerError HonClimate::alarm_status_message_handler_(haier_protocol::FrameType type,
+                                                                       const uint8_t *buffer, size_t size) {
+  haier_protocol::HandlerError result = haier_protocol::HandlerError::HANDLER_OK;
+  if (size < sizeof(this->active_alarms_) + 2) {
+    // Log error but confirm anyway to avoid to many messages
+    result = haier_protocol::HandlerError::WRONG_MESSAGE_STRUCTURE;
+  }
+  this->process_alarm_message_(buffer, size, true);
+  this->haier_protocol_.send_answer(haier_protocol::HaierMessage(haier_protocol::FrameType::CONFIRM));
+  this->last_alarm_request_ = std::chrono::steady_clock::now();
+  return result;
+}
+
 void HonClimate::set_handlers() {
   // Set handlers
   this->haier_protocol_.set_answer_handler(
@@ -291,6 +316,10 @@ void HonClimate::set_handlers() {
       haier_protocol::FrameType::REPORT_NETWORK_STATUS,
       std::bind(&HonClimate::report_network_status_answer_handler_, this, std::placeholders::_1, std::placeholders::_2,
                 std::placeholders::_3, std::placeholders::_4));
+  this->haier_protocol_.set_message_handler(
+      haier_protocol::FrameType::ALARM_STATUS,
+      std::bind(&HonClimate::alarm_status_message_handler_, this, std::placeholders::_1, std::placeholders::_2,
+                std::placeholders::_3));
 }
 
 void HonClimate::dump_config() {
@@ -363,10 +392,12 @@ void HonClimate::process_phase(std::chrono::steady_clock::time_point now) {
       this->set_phase(ProtocolPhases::IDLE);
       break;
 #endif
+    case ProtocolPhases::SENDING_FIRST_ALARM_STATUS_REQUEST:
     case ProtocolPhases::SENDING_ALARM_STATUS_REQUEST:
       if (this->can_send_message() && this->is_message_interval_exceeded_(now)) {
         static const haier_protocol::HaierMessage ALARM_STATUS_REQUEST(haier_protocol::FrameType::GET_ALARM_STATUS);
         this->send_message_(ALARM_STATUS_REQUEST, this->use_crc_);
+        this->last_alarm_request_ = now;
       }
       break;
     case ProtocolPhases::SENDING_CONTROL:
@@ -417,12 +448,16 @@ void HonClimate::process_phase(std::chrono::steady_clock::time_point now) {
       if (this->forced_request_status_ || this->is_status_request_interval_exceeded_(now)) {
         this->set_phase(ProtocolPhases::SENDING_STATUS_REQUEST);
         this->forced_request_status_ = false;
+      } else if (std::chrono::duration_cast<std::chrono::milliseconds>(now - this->last_alarm_request_).count() >
+                 ALARM_STATUS_REQUEST_INTERVAL_MS) {
+        this->set_phase(ProtocolPhases::SENDING_ALARM_STATUS_REQUEST);
       }
 #ifdef USE_WIFI
       else if (this->send_wifi_signal_ &&
                (std::chrono::duration_cast<std::chrono::milliseconds>(now - this->last_signal_request_).count() >
-                SIGNAL_LEVEL_UPDATE_INTERVAL_MS))
+                SIGNAL_LEVEL_UPDATE_INTERVAL_MS)) {
         this->set_phase(ProtocolPhases::SENDING_UPDATE_SIGNAL_REQUEST);
+      }
 #endif
     } break;
     default:
@@ -452,6 +487,7 @@ haier_protocol::HaierMessage HonClimate::get_control_message() {
   uint8_t control_out_buffer[sizeof(hon_protocol::HaierPacketControl)];
   memcpy(control_out_buffer, this->last_status_message_.get(), sizeof(hon_protocol::HaierPacketControl));
   hon_protocol::HaierPacketControl *out_data = (hon_protocol::HaierPacketControl *) control_out_buffer;
+  control_out_buffer[4] = 0;  // This byte should be cleared before setting values
   bool has_hvac_settings = false;
   if (this->current_hvac_settings_.valid) {
     has_hvac_settings = true;
@@ -552,31 +588,41 @@ haier_protocol::HaierMessage HonClimate::get_control_message() {
           out_data->quiet_mode = 0;
           out_data->fast_mode = 0;
           out_data->sleep_mode = 0;
+          out_data->ten_degree = 0;
           break;
         case CLIMATE_PRESET_ECO:
           // Eco is not supported in Fan only mode
           out_data->quiet_mode = (this->mode != CLIMATE_MODE_FAN_ONLY) ? 1 : 0;
           out_data->fast_mode = 0;
           out_data->sleep_mode = 0;
+          out_data->ten_degree = 0;
           break;
         case CLIMATE_PRESET_BOOST:
           out_data->quiet_mode = 0;
           // Boost is not supported in Fan only mode
           out_data->fast_mode = (this->mode != CLIMATE_MODE_FAN_ONLY) ? 1 : 0;
           out_data->sleep_mode = 0;
+          out_data->ten_degree = 0;
           break;
         case CLIMATE_PRESET_AWAY:
           out_data->quiet_mode = 0;
           out_data->fast_mode = 0;
           out_data->sleep_mode = 0;
+          // 10 degrees allowed only in heat mode
+          out_data->ten_degree = (this->mode == CLIMATE_MODE_HEAT) ? 1 : 0;
           break;
         case CLIMATE_PRESET_SLEEP:
           out_data->quiet_mode = 0;
           out_data->fast_mode = 0;
           out_data->sleep_mode = 1;
+          out_data->ten_degree = 0;
           break;
         default:
           ESP_LOGE("Control", "Unsupported preset");
+          out_data->quiet_mode = 0;
+          out_data->fast_mode = 0;
+          out_data->sleep_mode = 0;
+          out_data->ten_degree = 0;
           break;
       }
     }
@@ -595,6 +641,50 @@ haier_protocol::HaierMessage HonClimate::get_control_message() {
                                       control_out_buffer, sizeof(hon_protocol::HaierPacketControl));
 }
 
+void HonClimate::process_alarm_message_(const uint8_t *packet, uint8_t size, bool check_new) {
+  constexpr size_t active_alarms_size = sizeof(this->active_alarms_);
+  if (size >= active_alarms_size + 2) {
+    if (check_new) {
+      size_t alarm_code = 0;
+      for (int i = active_alarms_size - 1; i >= 0; i--) {
+        if (packet[2 + i] != active_alarms_[i]) {
+          uint8_t alarm_bit = 1;
+          for (int b = 0; b < 8; b++) {
+            if ((packet[2 + i] & alarm_bit) != (this->active_alarms_[i] & alarm_bit)) {
+              bool alarm_status = (packet[2 + i] & alarm_bit) != 0;
+              int log_level = alarm_status ? ESPHOME_LOG_LEVEL_WARN : ESPHOME_LOG_LEVEL_INFO;
+              const char *alarm_message = alarm_code < esphome::haier::hon_protocol::HON_ALARM_COUNT
+                                              ? esphome::haier::hon_protocol::HON_ALARM_MESSAGES[alarm_code].c_str()
+                                              : "Unknown";
+              esp_log_printf_(log_level, TAG, __LINE__, "Alarm %s (%d): %s", alarm_status ? "activated" : "deactivated",
+                              alarm_code, alarm_message);
+              if (alarm_status) {
+                this->alarm_start_callback_.call(alarm_code, alarm_message);
+                this->active_alarm_count_ += 1.0f;
+              } else {
+                this->alarm_end_callback_.call(alarm_code, alarm_message);
+                this->active_alarm_count_ -= 1.0f;
+              }
+            }
+            alarm_bit <<= 1;
+            alarm_code++;
+          }
+          active_alarms_[i] = packet[2 + i];
+        } else
+          alarm_code += 8;
+      }
+    } else {
+      float alarm_count = 0.0f;
+      static uint8_t nibble_bits_count[] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
+      for (size_t i = 0; i < sizeof(this->active_alarms_); i++) {
+        alarm_count += (float) (nibble_bits_count[packet[2 + i] & 0x0F] + nibble_bits_count[packet[2 + i] >> 4]);
+      }
+      this->active_alarm_count_ = alarm_count;
+      memcpy(this->active_alarms_, packet + 2, sizeof(this->active_alarms_));
+    }
+  }
+}
+
 haier_protocol::HandlerError HonClimate::process_status_message_(const uint8_t *packet_buffer, uint8_t size) {
   if (size < hon_protocol::HAIER_STATUS_FRAME_SIZE + this->extra_control_packet_bytes_)
     return haier_protocol::HandlerError::WRONG_MESSAGE_STRUCTURE;
@@ -626,6 +716,8 @@ haier_protocol::HandlerError HonClimate::process_status_message_(const uint8_t *
       this->preset = CLIMATE_PRESET_BOOST;
     } else if (packet.control.sleep_mode != 0) {
       this->preset = CLIMATE_PRESET_SLEEP;
+    } else if (packet.control.ten_degree != 0) {
+      this->preset = CLIMATE_PRESET_AWAY;
     } else {
       this->preset = CLIMATE_PRESET_NONE;
     }
@@ -882,25 +974,35 @@ void HonClimate::fill_control_messages_queue_() {
   // CLimate preset
   {
     uint8_t fast_mode_buf[] = {0x00, 0xFF};
+    uint8_t away_mode_buf[] = {0x00, 0xFF};
     if (!new_power) {
       // If AC is off - no presets allowed
       quiet_mode_buf[1] = 0x00;
       fast_mode_buf[1] = 0x00;
+      away_mode_buf[1] = 0x00;
     } else if (climate_control.preset.has_value()) {
       switch (climate_control.preset.value()) {
         case CLIMATE_PRESET_NONE:
           quiet_mode_buf[1] = 0x00;
           fast_mode_buf[1] = 0x00;
+          away_mode_buf[1] = 0x00;
           break;
         case CLIMATE_PRESET_ECO:
           // Eco is not supported in Fan only mode
           quiet_mode_buf[1] = (this->mode != CLIMATE_MODE_FAN_ONLY) ? 0x01 : 0x00;
           fast_mode_buf[1] = 0x00;
+          away_mode_buf[1] = 0x00;
           break;
         case CLIMATE_PRESET_BOOST:
           quiet_mode_buf[1] = 0x00;
           // Boost is not supported in Fan only mode
           fast_mode_buf[1] = (this->mode != CLIMATE_MODE_FAN_ONLY) ? 0x01 : 0x00;
+          away_mode_buf[1] = 0x00;
+          break;
+        case CLIMATE_PRESET_AWAY:
+          quiet_mode_buf[1] = 0x00;
+          fast_mode_buf[1] = 0x00;
+          away_mode_buf[1] = (this->mode == CLIMATE_MODE_HEAT) ? 0x01 : 0x00;
           break;
         default:
           ESP_LOGE("Control", "Unsupported preset");
@@ -921,6 +1023,13 @@ void HonClimate::fill_control_messages_queue_() {
                                            (uint8_t) hon_protocol::DataParameters::FAST_MODE,
                                        fast_mode_buf, 2));
     }
+    if (away_mode_buf[1] != 0xFF) {
+      this->control_messages_queue_.push(
+          haier_protocol::HaierMessage(haier_protocol::FrameType::CONTROL,
+                                       (uint16_t) hon_protocol::SubcommandsControl::SET_SINGLE_PARAMETER +
+                                           (uint8_t) hon_protocol::DataParameters::TEN_DEGREE,
+                                       away_mode_buf, 2));
+    }
   }
   // Target temperature
   if (climate_control.target_temperature.has_value()) {

esphome/components/haier/hon_climate.h

@@ -2,6 +2,7 @@
 
 #include <chrono>
 #include "esphome/components/sensor/sensor.h"
+#include "esphome/core/automation.h"
 #include "haier_base.h"
 
 namespace esphome {
@@ -52,6 +53,9 @@ class HonClimate : public HaierClimateBase {
   void start_steri_cleaning();
   void set_extra_control_packet_bytes_size(size_t size) { this->extra_control_packet_bytes_ = size; };
   void set_control_method(HonControlMethod method) { this->control_method_ = method; };
+  void add_alarm_start_callback(std::function<void(uint8_t, const char *)> &&callback);
+  void add_alarm_end_callback(std::function<void(uint8_t, const char *)> &&callback);
+  float get_active_alarm_count() const { return this->active_alarm_count_; }
 
  protected:
   void set_handlers() override;
@@ -77,8 +81,11 @@ class HonClimate : public HaierClimateBase {
   haier_protocol::HandlerError get_alarm_status_answer_handler_(haier_protocol::FrameType request_type,
                                                                 haier_protocol::FrameType message_type,
                                                                 const uint8_t *data, size_t data_size);
+  haier_protocol::HandlerError alarm_status_message_handler_(haier_protocol::FrameType type, const uint8_t *buffer,
+                                                             size_t size);
   // Helper functions
   haier_protocol::HandlerError process_status_message_(const uint8_t *packet, uint8_t size);
+  void process_alarm_message_(const uint8_t *packet, uint8_t size, bool check_new);
   void fill_control_messages_queue_();
   void clear_control_messages_queue_();
 
@@ -101,6 +108,26 @@ class HonClimate : public HaierClimateBase {
   HonControlMethod control_method_;
   esphome::sensor::Sensor *outdoor_sensor_;
   std::queue<haier_protocol::HaierMessage> control_messages_queue_;
+  CallbackManager<void(uint8_t, const char *)> alarm_start_callback_{};
+  CallbackManager<void(uint8_t, const char *)> alarm_end_callback_{};
+  float active_alarm_count_{NAN};
+  std::chrono::steady_clock::time_point last_alarm_request_;
+};
+
+class HaierAlarmStartTrigger : public Trigger<uint8_t, const char *> {
+ public:
+  explicit HaierAlarmStartTrigger(HonClimate *parent) {
+    parent->add_alarm_start_callback(
+        [this](uint8_t alarm_code, const char *alarm_message) { this->trigger(alarm_code, alarm_message); });
+  }
+};
+
+class HaierAlarmEndTrigger : public Trigger<uint8_t, const char *> {
+ public:
+  explicit HaierAlarmEndTrigger(HonClimate *parent) {
+    parent->add_alarm_end_callback(
+        [this](uint8_t alarm_code, const char *alarm_message) { this->trigger(alarm_code, alarm_message); });
+  }
 };
 
 }  // namespace haier

esphome/components/haier/hon_packet.h

@@ -163,6 +163,62 @@ enum class SubcommandsControl : uint16_t {
                                   // content: all values like in status packet)
 };
 
+const std::string HON_ALARM_MESSAGES[] = {
+    "Outdoor module failure",
+    "Outdoor defrost sensor failure",
+    "Outdoor compressor exhaust sensor failure",
+    "Outdoor EEPROM abnormality",
+    "Indoor coil sensor failure",
+    "Indoor-outdoor communication failure",
+    "Power supply overvoltage protection",
+    "Communication failure between panel and indoor unit",
+    "Outdoor compressor overheat protection",
+    "Outdoor environmental sensor abnormality",
+    "Full water protection",
+    "Indoor EEPROM failure",
+    "Outdoor out air sensor failure",
+    "CBD and module communication failure",
+    "Indoor DC fan failure",
+    "Outdoor DC fan failure",
+    "Door switch failure",
+    "Dust filter needs cleaning reminder",
+    "Water shortage protection",
+    "Humidity sensor failure",
+    "Indoor temperature sensor failure",
+    "Manipulator limit failure",
+    "Indoor PM2.5 sensor failure",
+    "Outdoor PM2.5 sensor failure",
+    "Indoor heating overload/high load alarm",
+    "Outdoor AC current protection",
+    "Outdoor compressor operation abnormality",
+    "Outdoor DC current protection",
+    "Outdoor no-load failure",
+    "CT current abnormality",
+    "Indoor cooling freeze protection",
+    "High and low pressure protection",
+    "Compressor out air temperature is too high",
+    "Outdoor evaporator sensor failure",
+    "Outdoor cooling overload",
+    "Water pump drainage failure",
+    "Three-phase power supply failure",
+    "Four-way valve failure",
+    "External alarm/scraper flow switch failure",
+    "Temperature cutoff protection alarm",
+    "Different mode operation failure",
+    "Electronic expansion valve failure",
+    "Dual heat source sensor Tw failure",
+    "Communication failure with the wired controller",
+    "Indoor unit address duplication failure",
+    "50Hz zero crossing failure",
+    "Outdoor unit failure",
+    "Formaldehyde sensor failure",
+    "VOC sensor failure",
+    "CO2 sensor failure",
+    "Firewall failure",
+};
+
+constexpr size_t HON_ALARM_COUNT = sizeof(HON_ALARM_MESSAGES) / sizeof(HON_ALARM_MESSAGES[0]);
+
 }  // namespace hon_protocol
 }  // namespace haier
 }  // namespace esphome

esphome/components/haier/smartair2_climate.cpp

@@ -95,7 +95,7 @@ haier_protocol::HandlerError Smartair2Climate::messages_timeout_handler_with_cyc
   ESP_LOGI(TAG, "Answer timeout for command %02X, phase %s", (uint8_t) message_type,
            phase_to_string_(this->protocol_phase_));
   ProtocolPhases new_phase = (ProtocolPhases) ((int) this->protocol_phase_ + 1);
-  if (new_phase >= ProtocolPhases::SENDING_ALARM_STATUS_REQUEST)
+  if (new_phase >= ProtocolPhases::SENDING_FIRST_ALARM_STATUS_REQUEST)
     new_phase = ProtocolPhases::SENDING_INIT_1;
   this->set_phase(new_phase);
   return haier_protocol::HandlerError::HANDLER_OK;
@@ -170,9 +170,12 @@ void Smartair2Climate::process_phase(std::chrono::steady_clock::time_point now)
     case ProtocolPhases::SENDING_UPDATE_SIGNAL_REQUEST:
       this->set_phase(ProtocolPhases::SENDING_SIGNAL_LEVEL);
       break;
-    case ProtocolPhases::SENDING_ALARM_STATUS_REQUEST:
+    case ProtocolPhases::SENDING_FIRST_ALARM_STATUS_REQUEST:
       this->set_phase(ProtocolPhases::SENDING_INIT_1);
       break;
+    case ProtocolPhases::SENDING_ALARM_STATUS_REQUEST:
+      this->set_phase(ProtocolPhases::IDLE);
+      break;
     case ProtocolPhases::SENDING_CONTROL:
       if (this->can_send_message() && this->is_control_message_interval_exceeded_(now)) {
         ESP_LOGI(TAG, "Sending control packet");
@@ -343,19 +346,29 @@ haier_protocol::HaierMessage Smartair2Climate::get_control_message() {
     } else if (climate_control.preset.has_value()) {
       switch (climate_control.preset.value()) {
         case CLIMATE_PRESET_NONE:
+          out_data->ten_degree = 0;
           out_data->turbo_mode = 0;
           out_data->quiet_mode = 0;
           break;
         case CLIMATE_PRESET_BOOST:
+          out_data->ten_degree = 0;
           out_data->turbo_mode = 1;
           out_data->quiet_mode = 0;
           break;
         case CLIMATE_PRESET_COMFORT:
+          out_data->ten_degree = 0;
           out_data->turbo_mode = 0;
           out_data->quiet_mode = 1;
           break;
+        case CLIMATE_PRESET_AWAY:
+          // Only allowed in heat mode
+          out_data->ten_degree = (this->mode == CLIMATE_MODE_HEAT) ? 1 : 0;
+          out_data->turbo_mode = 0;
+          out_data->quiet_mode = 0;
+          break;
         default:
           ESP_LOGE("Control", "Unsupported preset");
+          out_data->ten_degree = 0;
           out_data->turbo_mode = 0;
           out_data->quiet_mode = 0;
           break;
@@ -381,6 +394,8 @@ haier_protocol::HandlerError Smartair2Climate::process_status_message_(const uin
       this->preset = CLIMATE_PRESET_BOOST;
     } else if (packet.control.quiet_mode != 0) {
       this->preset = CLIMATE_PRESET_COMFORT;
+    } else if (packet.control.ten_degree != 0) {
+      this->preset = CLIMATE_PRESET_AWAY;
     } else {
       this->preset = CLIMATE_PRESET_NONE;
     }

tests/test3.yaml

@@ -1030,7 +1030,9 @@ climate:
     visual:
       min_temperature: 16 °C
       max_temperature: 30 °C
-      temperature_step: 1 °C
+      temperature_step:
+        target_temperature: 1
+        current_temperature: 0.5
     supported_modes:
     - 'OFF'
     - HEAT_COOL
@@ -1043,6 +1045,23 @@ climate:
     - VERTICAL
     - HORIZONTAL
     - BOTH
+    supported_presets:
+    - AWAY
+    - BOOST
+    - ECO
+    - SLEEP
+    on_alarm_start:
+      then:
+        - logger.log:
+            level: DEBUG
+            format: "Alarm activated. Code: %d. Message: \"%s\""
+            args: [ code, message]
+    on_alarm_end:
+      then:
+        - logger.log:
+            level: DEBUG
+            format: "Alarm deactivated. Code: %d. Message: \"%s\""
+            args: [ code, message]
 
 sprinkler:
   - id: yard_sprinkler_ctrlr