Added receive for Fujitsu ACs (#1577)

esphome/components/fujitsu_general/climate.py

@@ -10,7 +10,7 @@ FujitsuGeneralClimate = fujitsu_general_ns.class_(
     "FujitsuGeneralClimate", climate_ir.ClimateIR
 )
 
-CONFIG_SCHEMA = climate_ir.CLIMATE_IR_SCHEMA.extend(
+CONFIG_SCHEMA = climate_ir.CLIMATE_IR_WITH_RECEIVER_SCHEMA.extend(
     {
         cv.GenerateID(): cv.declare_id(FujitsuGeneralClimate),
     }

esphome/components/fujitsu_general/fujitsu_general.cpp

@@ -3,224 +3,207 @@
 namespace esphome {
 namespace fujitsu_general {
 
-static const char *TAG = "fujitsu_general.climate";
+// bytes' bits are reversed for fujitsu, so nibbles are ordered 1, 0, 3, 2, 5, 4, etc...
 
-// Control packet
+#define SET_NIBBLE(message, nibble, value) (message[nibble / 2] |= (value & 0b00001111) << ((nibble % 2) ? 0 : 4))
-const uint16_t FUJITSU_GENERAL_STATE_LENGTH = 16;
+#define GET_NIBBLE(message, nibble) ((message[nibble / 2] >> ((nibble % 2) ? 0 : 4)) & 0b00001111)
 
-const uint8_t FUJITSU_GENERAL_BASE_BYTE0 = 0x14;
+static const char* TAG = "fujitsu_general.climate";
-const uint8_t FUJITSU_GENERAL_BASE_BYTE1 = 0x63;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE2 = 0x00;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE3 = 0x10;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE4 = 0x10;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE5 = 0xFE;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE6 = 0x09;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE7 = 0x30;
 
-// Temperature and POWER ON
+// Common header
-const uint8_t FUJITSU_GENERAL_POWER_ON_MASK_BYTE8 = 0b00000001;
+const uint8_t FUJITSU_GENERAL_COMMON_LENGTH = 6;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE8 = 0x40;
+const uint8_t FUJITSU_GENERAL_COMMON_BYTE0 = 0x14;
+const uint8_t FUJITSU_GENERAL_COMMON_BYTE1 = 0x63;
+const uint8_t FUJITSU_GENERAL_COMMON_BYTE2 = 0x00;
+const uint8_t FUJITSU_GENERAL_COMMON_BYTE3 = 0x10;
+const uint8_t FUJITSU_GENERAL_COMMON_BYTE4 = 0x10;
+const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_BYTE = 5;
+
+// State message - temp & fan etc.
+const uint8_t FUJITSU_GENERAL_STATE_MESSAGE_LENGTH = 16;
+const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_STATE = 0xFE;
+
+// Util messages - off & eco etc.
+const uint8_t FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH = 7;
+const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_OFF = 0x02;
+const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_ECONOMY = 0x09;
+const uint8_t FUJITSU_GENERAL_MESSAGE_TYPE_NUDGE = 0x6C;
+
+// State header
+const uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE0 = 0x09;
+const uint8_t FUJITSU_GENERAL_STATE_HEADER_BYTE1 = 0x30;
+
+// State footer
+const uint8_t FUJITSU_GENERAL_STATE_FOOTER_BYTE0 = 0x20;
+
+// Temperature
+const uint8_t FUJITSU_GENERAL_TEMPERATURE_NIBBLE = 16;
+
+// Power on
+const uint8_t FUJITSU_GENERAL_POWER_ON_NIBBLE = 17;
+const uint8_t FUJITSU_GENERAL_POWER_ON = 0x01;
+const uint8_t FUJITSU_GENERAL_POWER_OFF = 0x00;
 
 // Mode
-const uint8_t FUJITSU_GENERAL_MODE_AUTO_BYTE9 = 0x00;
+const uint8_t FUJITSU_GENERAL_MODE_NIBBLE = 19;
-const uint8_t FUJITSU_GENERAL_MODE_HEAT_BYTE9 = 0x04;
+const uint8_t FUJITSU_GENERAL_MODE_AUTO = 0x00;
-const uint8_t FUJITSU_GENERAL_MODE_COOL_BYTE9 = 0x01;
+const uint8_t FUJITSU_GENERAL_MODE_HEAT = 0x04;
-const uint8_t FUJITSU_GENERAL_MODE_DRY_BYTE9 = 0x02;
+const uint8_t FUJITSU_GENERAL_MODE_COOL = 0x01;
-const uint8_t FUJITSU_GENERAL_MODE_FAN_BYTE9 = 0x03;
+const uint8_t FUJITSU_GENERAL_MODE_DRY = 0x02;
-const uint8_t FUJITSU_GENERAL_MODE_10C_BYTE9 = 0x0B;
+const uint8_t FUJITSU_GENERAL_MODE_FAN = 0x03;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE9 = 0x01;
+// const uint8_t FUJITSU_GENERAL_MODE_10C = 0x0B;
 
-// Fan speed and swing
+// Swing
-const uint8_t FUJITSU_GENERAL_FAN_AUTO_BYTE10 = 0x00;
+const uint8_t FUJITSU_GENERAL_FAN_NIBBLE = 20;
-const uint8_t FUJITSU_GENERAL_FAN_HIGH_BYTE10 = 0x01;
+const uint8_t FUJITSU_GENERAL_FAN_AUTO = 0x00;
-const uint8_t FUJITSU_GENERAL_FAN_MEDIUM_BYTE10 = 0x02;
+const uint8_t FUJITSU_GENERAL_FAN_HIGH = 0x01;
-const uint8_t FUJITSU_GENERAL_FAN_LOW_BYTE10 = 0x03;
+const uint8_t FUJITSU_GENERAL_FAN_MEDIUM = 0x02;
-const uint8_t FUJITSU_GENERAL_FAN_SILENT_BYTE10 = 0x04;
+const uint8_t FUJITSU_GENERAL_FAN_LOW = 0x03;
-const uint8_t FUJITSU_GENERAL_SWING_NONE_BYTE10 = 0x00;
+const uint8_t FUJITSU_GENERAL_FAN_SILENT = 0x04;
-const uint8_t FUJITSU_GENERAL_SWING_VERTICAL_BYTE10 = 0x01;
-const uint8_t FUJITSU_GENERAL_SWING_HORIZONTAL_BYTE10 = 0x02;
-const uint8_t FUJITSU_GENERAL_SWING_BOTH_BYTE10 = 0x03;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE10 = 0x00;
 
-const uint8_t FUJITSU_GENERAL_BASE_BYTE11 = 0x00;
+// Fan speed
-const uint8_t FUJITSU_GENERAL_BASE_BYTE12 = 0x00;
+const uint8_t FUJITSU_GENERAL_SWING_NIBBLE = 21;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE13 = 0x00;
+const uint8_t FUJITSU_GENERAL_SWING_NONE = 0x00;
+const uint8_t FUJITSU_GENERAL_SWING_VERTICAL = 0x01;
+const uint8_t FUJITSU_GENERAL_SWING_HORIZONTAL = 0x02;
+const uint8_t FUJITSU_GENERAL_SWING_BOTH = 0x03;
 
-// Outdoor Unit Low Noise
+// TODO Outdoor Unit Low Noise
-const uint8_t FUJITSU_GENERAL_OUTDOOR_UNIT_LOW_NOISE_BYTE14 = 0xA0;
+// const uint8_t FUJITSU_GENERAL_OUTDOOR_UNIT_LOW_NOISE_BYTE14 = 0xA0;
-const uint8_t FUJITSU_GENERAL_BASE_BYTE14 = 0x20;
+// const uint8_t FUJITSU_GENERAL_STATE_BYTE14 = 0x20;
-
-// CRC
-const uint8_t FUJITSU_GENERAL_BASE_BYTE15 = 0x6F;
-
-// Power off packet is specific
-const uint16_t FUJITSU_GENERAL_OFF_LENGTH = 7;
-
-const uint8_t FUJITSU_GENERAL_OFF_BYTE0 = FUJITSU_GENERAL_BASE_BYTE0;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE1 = FUJITSU_GENERAL_BASE_BYTE1;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE2 = FUJITSU_GENERAL_BASE_BYTE2;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE3 = FUJITSU_GENERAL_BASE_BYTE3;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE4 = FUJITSU_GENERAL_BASE_BYTE4;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE5 = 0x02;
-const uint8_t FUJITSU_GENERAL_OFF_BYTE6 = 0xFD;
-
-const uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
-const uint8_t FUJITSU_GENERAL_TEMP_MIN = 16;  // Celsius
 
 const uint16_t FUJITSU_GENERAL_HEADER_MARK = 3300;
 const uint16_t FUJITSU_GENERAL_HEADER_SPACE = 1600;
+
 const uint16_t FUJITSU_GENERAL_BIT_MARK = 420;
 const uint16_t FUJITSU_GENERAL_ONE_SPACE = 1200;
 const uint16_t FUJITSU_GENERAL_ZERO_SPACE = 420;
+
 const uint16_t FUJITSU_GENERAL_TRL_MARK = 420;
 const uint16_t FUJITSU_GENERAL_TRL_SPACE = 8000;
 
 const uint32_t FUJITSU_GENERAL_CARRIER_FREQUENCY = 38000;
 
-FujitsuGeneralClimate::FujitsuGeneralClimate()
-    : ClimateIR(
-          FUJITSU_GENERAL_TEMP_MIN, FUJITSU_GENERAL_TEMP_MAX, 1.0f, true, true,
-          {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM, climate::CLIMATE_FAN_HIGH},
-          {climate::CLIMATE_SWING_OFF, climate::CLIMATE_SWING_VERTICAL, climate::CLIMATE_SWING_HORIZONTAL,
-           climate::CLIMATE_SWING_BOTH}) {}
-
 void FujitsuGeneralClimate::transmit_state() {
   if (this->mode == climate::CLIMATE_MODE_OFF) {
     this->transmit_off_();
     return;
   }
-  uint8_t remote_state[FUJITSU_GENERAL_STATE_LENGTH] = {0};
 
-  remote_state[0] = FUJITSU_GENERAL_BASE_BYTE0;
+  ESP_LOGV(TAG, "Transmit state");
-  remote_state[1] = FUJITSU_GENERAL_BASE_BYTE1;
+
-  remote_state[2] = FUJITSU_GENERAL_BASE_BYTE2;
+  uint8_t remote_state[FUJITSU_GENERAL_STATE_MESSAGE_LENGTH] = {0};
-  remote_state[3] = FUJITSU_GENERAL_BASE_BYTE3;
+
-  remote_state[4] = FUJITSU_GENERAL_BASE_BYTE4;
+  // Common message header
-  remote_state[5] = FUJITSU_GENERAL_BASE_BYTE5;
+  remote_state[0] = FUJITSU_GENERAL_COMMON_BYTE0;
-  remote_state[6] = FUJITSU_GENERAL_BASE_BYTE6;
+  remote_state[1] = FUJITSU_GENERAL_COMMON_BYTE1;
-  remote_state[7] = FUJITSU_GENERAL_BASE_BYTE7;
+  remote_state[2] = FUJITSU_GENERAL_COMMON_BYTE2;
-  remote_state[8] = FUJITSU_GENERAL_BASE_BYTE8;
+  remote_state[3] = FUJITSU_GENERAL_COMMON_BYTE3;
-  remote_state[9] = FUJITSU_GENERAL_BASE_BYTE9;
+  remote_state[4] = FUJITSU_GENERAL_COMMON_BYTE4;
-  remote_state[10] = FUJITSU_GENERAL_BASE_BYTE10;
+  remote_state[5] = FUJITSU_GENERAL_MESSAGE_TYPE_STATE;
-  remote_state[11] = FUJITSU_GENERAL_BASE_BYTE11;
+  remote_state[6] = FUJITSU_GENERAL_STATE_HEADER_BYTE0;
-  remote_state[12] = FUJITSU_GENERAL_BASE_BYTE12;
+  remote_state[7] = FUJITSU_GENERAL_STATE_HEADER_BYTE1;
-  remote_state[13] = FUJITSU_GENERAL_BASE_BYTE13;
+
-  remote_state[14] = FUJITSU_GENERAL_BASE_BYTE14;
+  // unknown, does not appear to change with any remote settings
-  remote_state[15] = FUJITSU_GENERAL_BASE_BYTE15;
+  remote_state[14] = FUJITSU_GENERAL_STATE_FOOTER_BYTE0;
 
   // Set temperature
-  auto safecelsius =
+  uint8_t temperature_clamped =
       (uint8_t) roundf(clamp(this->target_temperature, FUJITSU_GENERAL_TEMP_MIN, FUJITSU_GENERAL_TEMP_MAX));
-  remote_state[8] = (byte) safecelsius - 16;
+  uint8_t temperature_offset = temperature_clamped - FUJITSU_GENERAL_TEMP_MIN;
-  remote_state[8] = remote_state[8] << 4;
+  SET_NIBBLE(remote_state, FUJITSU_GENERAL_TEMPERATURE_NIBBLE, temperature_offset);
 
-  // If not powered - set power on flag
+  // Set power on
   if (!this->power_) {
-    remote_state[8] = (byte) remote_state[8] | FUJITSU_GENERAL_POWER_ON_MASK_BYTE8;
+    SET_NIBBLE(remote_state, FUJITSU_GENERAL_POWER_ON_NIBBLE, FUJITSU_GENERAL_POWER_ON);
   }
 
   // Set mode
   switch (this->mode) {
     case climate::CLIMATE_MODE_COOL:
-      remote_state[9] = FUJITSU_GENERAL_MODE_COOL_BYTE9;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_COOL);
       break;
     case climate::CLIMATE_MODE_HEAT:
-      remote_state[9] = FUJITSU_GENERAL_MODE_HEAT_BYTE9;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_HEAT);
       break;
     case climate::CLIMATE_MODE_DRY:
-      remote_state[9] = FUJITSU_GENERAL_MODE_DRY_BYTE9;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_DRY);
       break;
     case climate::CLIMATE_MODE_FAN_ONLY:
-      remote_state[9] = FUJITSU_GENERAL_MODE_FAN_BYTE9;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_FAN);
       break;
     case climate::CLIMATE_MODE_AUTO:
     default:
-      remote_state[9] = FUJITSU_GENERAL_MODE_AUTO_BYTE9;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_MODE_NIBBLE, FUJITSU_GENERAL_MODE_AUTO);
       break;
-      // TODO: CLIMATE_MODE_10C are missing in esphome
+      // TODO: CLIMATE_MODE_10C is missing from esphome
   }
 
   // Set fan
   switch (this->fan_mode) {
     case climate::CLIMATE_FAN_HIGH:
-      remote_state[10] = FUJITSU_GENERAL_FAN_HIGH_BYTE10;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_HIGH);
       break;
     case climate::CLIMATE_FAN_MEDIUM:
-      remote_state[10] = FUJITSU_GENERAL_FAN_MEDIUM_BYTE10;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_MEDIUM);
       break;
     case climate::CLIMATE_FAN_LOW:
-      remote_state[10] = FUJITSU_GENERAL_FAN_LOW_BYTE10;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_LOW);
       break;
     case climate::CLIMATE_FAN_AUTO:
     default:
-      remote_state[10] = FUJITSU_GENERAL_FAN_AUTO_BYTE10;
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_FAN_NIBBLE, FUJITSU_GENERAL_FAN_AUTO);
       break;
+      // TODO Quiet / Silent
   }
 
   // Set swing
   switch (this->swing_mode) {
     case climate::CLIMATE_SWING_VERTICAL:
-      remote_state[10] = (byte) remote_state[10] | (FUJITSU_GENERAL_SWING_VERTICAL_BYTE10 << 4);
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_VERTICAL);
       break;
     case climate::CLIMATE_SWING_HORIZONTAL:
-      remote_state[10] = (byte) remote_state[10] | (FUJITSU_GENERAL_SWING_HORIZONTAL_BYTE10 << 4);
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_HORIZONTAL);
       break;
     case climate::CLIMATE_SWING_BOTH:
-      remote_state[10] = (byte) remote_state[10] | (FUJITSU_GENERAL_SWING_BOTH_BYTE10 << 4);
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_BOTH);
       break;
     case climate::CLIMATE_SWING_OFF:
     default:
-      remote_state[10] = (byte) remote_state[10] | (FUJITSU_GENERAL_SWING_NONE_BYTE10 << 4);
+      SET_NIBBLE(remote_state, FUJITSU_GENERAL_SWING_NIBBLE, FUJITSU_GENERAL_SWING_NONE);
       break;
   }
 
   // TODO: missing support for outdoor unit low noise
   // remote_state[14] = (byte) remote_state[14] | FUJITSU_GENERAL_OUTDOOR_UNIT_LOW_NOISE_BYTE14;
 
-  // CRC
+  remote_state[FUJITSU_GENERAL_STATE_MESSAGE_LENGTH - 1] = this->checksum_state_(remote_state);
-  remote_state[15] = 0;
-  for (int i = 7; i < 15; i++) {
-    remote_state[15] += (byte) remote_state[i];  // Addiction
-  }
-  remote_state[15] = 0x100 - remote_state[15];  // mod 256
 
-  auto transmit = this->transmitter_->transmit();
+  this->transmit_(remote_state, FUJITSU_GENERAL_STATE_MESSAGE_LENGTH);
-  auto data = transmit.get_data();
-
-  data->set_carrier_frequency(FUJITSU_GENERAL_CARRIER_FREQUENCY);
-
-  // Header
-  data->mark(FUJITSU_GENERAL_HEADER_MARK);
-  data->space(FUJITSU_GENERAL_HEADER_SPACE);
-  // Data
-  for (uint8_t i : remote_state) {
-    // Send all Bits from Byte Data in Reverse Order
-    for (uint8_t mask = 00000001; mask > 0; mask <<= 1) {  // iterate through bit mask
-      data->mark(FUJITSU_GENERAL_BIT_MARK);
-      bool bit = i & mask;
-      data->space(bit ? FUJITSU_GENERAL_ONE_SPACE : FUJITSU_GENERAL_ZERO_SPACE);
-      // Next bits
-    }
-  }
-  // Footer
-  data->mark(FUJITSU_GENERAL_TRL_MARK);
-  data->space(FUJITSU_GENERAL_TRL_SPACE);
-
-  transmit.perform();
 
   this->power_ = true;
 }
 
 void FujitsuGeneralClimate::transmit_off_() {
-  uint8_t remote_state[FUJITSU_GENERAL_OFF_LENGTH] = {0};
+  ESP_LOGV(TAG, "Transmit off");
 
-  remote_state[0] = FUJITSU_GENERAL_OFF_BYTE0;
+  uint8_t remote_state[FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH] = {0};
-  remote_state[1] = FUJITSU_GENERAL_OFF_BYTE1;
+
-  remote_state[2] = FUJITSU_GENERAL_OFF_BYTE2;
+  remote_state[0] = FUJITSU_GENERAL_COMMON_BYTE0;
-  remote_state[3] = FUJITSU_GENERAL_OFF_BYTE3;
+  remote_state[1] = FUJITSU_GENERAL_COMMON_BYTE1;
-  remote_state[4] = FUJITSU_GENERAL_OFF_BYTE4;
+  remote_state[2] = FUJITSU_GENERAL_COMMON_BYTE2;
-  remote_state[5] = FUJITSU_GENERAL_OFF_BYTE5;
+  remote_state[3] = FUJITSU_GENERAL_COMMON_BYTE3;
-  remote_state[6] = FUJITSU_GENERAL_OFF_BYTE6;
+  remote_state[4] = FUJITSU_GENERAL_COMMON_BYTE4;
+  remote_state[5] = FUJITSU_GENERAL_MESSAGE_TYPE_OFF;
+  remote_state[6] = this->checksum_util_(remote_state);
+
+  this->transmit_(remote_state, FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH);
+
+  this->power_ = false;
+}
+
+void FujitsuGeneralClimate::transmit_(uint8_t const* message, uint8_t length) {
+  ESP_LOGV(TAG, "Transmit message length %d", length);
 
   auto transmit = this->transmitter_->transmit();
   auto data = transmit.get_data();
@@ -232,22 +215,191 @@ void FujitsuGeneralClimate::transmit_off_() {
   data->space(FUJITSU_GENERAL_HEADER_SPACE);
 
   // Data
-  for (uint8_t i : remote_state) {
+  for (uint8_t i = 0; i < length; ++i) {
-    // Send all Bits from Byte Data in Reverse Order
+    const uint8_t byte = message[i];
-    for (uint8_t mask = 00000001; mask > 0; mask <<= 1) {  // iterate through bit mask
+    for (uint8_t mask = 0b00000001; mask > 0; mask <<= 1) {  // write from right to left
       data->mark(FUJITSU_GENERAL_BIT_MARK);
-      bool bit = i & mask;
+      bool bit = byte & mask;
       data->space(bit ? FUJITSU_GENERAL_ONE_SPACE : FUJITSU_GENERAL_ZERO_SPACE);
-      // Next bits
     }
   }
+
   // Footer
   data->mark(FUJITSU_GENERAL_TRL_MARK);
   data->space(FUJITSU_GENERAL_TRL_SPACE);
 
   transmit.perform();
+}
 
+uint8_t FujitsuGeneralClimate::checksum_state_(uint8_t const* message) {
+  uint8_t checksum = 0;
+  for (uint8_t i = 7; i < FUJITSU_GENERAL_STATE_MESSAGE_LENGTH - 1; ++i) {
+    checksum += message[i];
+  }
+  return 256 - checksum;
+}
+
+uint8_t FujitsuGeneralClimate::checksum_util_(uint8_t const* message) { return 255 - message[5]; }
+
+bool FujitsuGeneralClimate::on_receive(remote_base::RemoteReceiveData data) {
+  ESP_LOGV(TAG, "Received IR message");
+
+  // Validate header
+  if (!data.expect_item(FUJITSU_GENERAL_HEADER_MARK, FUJITSU_GENERAL_HEADER_SPACE)) {
+    ESP_LOGV(TAG, "Header fail");
+    return false;
+  }
+
+  uint8_t recv_message[FUJITSU_GENERAL_STATE_MESSAGE_LENGTH] = {0};
+
+  // Read header
+  for (uint8_t byte = 0; byte < FUJITSU_GENERAL_COMMON_LENGTH; ++byte) {
+    // Read bit
+    for (uint8_t bit = 0; bit < 8; ++bit) {
+      if (data.expect_item(FUJITSU_GENERAL_BIT_MARK, FUJITSU_GENERAL_ONE_SPACE)) {
+        recv_message[byte] |= 1 << bit;  // read from right to left
+      } else if (!data.expect_item(FUJITSU_GENERAL_BIT_MARK, FUJITSU_GENERAL_ZERO_SPACE)) {
+        ESP_LOGV(TAG, "Byte %d bit %d fail", byte, bit);
+        return false;
+      }
+    }
+  }
+
+  const uint8_t recv_message_type = recv_message[FUJITSU_GENERAL_MESSAGE_TYPE_BYTE];
+  uint8_t recv_message_length;
+
+  switch (recv_message_type) {
+    case FUJITSU_GENERAL_MESSAGE_TYPE_STATE:
+      ESP_LOGV(TAG, "Received state message");
+      recv_message_length = FUJITSU_GENERAL_STATE_MESSAGE_LENGTH;
+      break;
+    case FUJITSU_GENERAL_MESSAGE_TYPE_OFF:
+    case FUJITSU_GENERAL_MESSAGE_TYPE_ECONOMY:
+    case FUJITSU_GENERAL_MESSAGE_TYPE_NUDGE:
+      ESP_LOGV(TAG, "Received util message");
+      recv_message_length = FUJITSU_GENERAL_UTIL_MESSAGE_LENGTH;
+      break;
+    default:
+      ESP_LOGV(TAG, "Unknown message type %X", recv_message_type);
+      return false;
+  }
+
+  // Read message body
+  for (uint8_t byte = FUJITSU_GENERAL_COMMON_LENGTH; byte < recv_message_length; ++byte) {
+    for (uint8_t bit = 0; bit < 8; ++bit) {
+      if (data.expect_item(FUJITSU_GENERAL_BIT_MARK, FUJITSU_GENERAL_ONE_SPACE)) {
+        recv_message[byte] |= 1 << bit;  // read from right to left
+      } else if (!data.expect_item(FUJITSU_GENERAL_BIT_MARK, FUJITSU_GENERAL_ZERO_SPACE)) {
+        ESP_LOGV(TAG, "Byte %d bit %d fail", byte, bit);
+        return false;
+      }
+    }
+  }
+
+  // Validate footer
+  if (!data.expect_mark(FUJITSU_GENERAL_BIT_MARK)) {
+    ESP_LOGV(TAG, "Footer fail");
+    return false;
+  }
+
+  for (uint8_t byte = 0; byte < recv_message_length; ++byte) {
+    ESP_LOGVV(TAG, "%02X", recv_message[byte]);
+  }
+
+  const uint8_t recv_checksum = recv_message[recv_message_length - 1];
+  uint8_t calculated_checksum;
+  if (recv_message_type == FUJITSU_GENERAL_MESSAGE_TYPE_STATE) {
+    calculated_checksum = this->checksum_state_(recv_message);
+  } else {
+    calculated_checksum = this->checksum_util_(recv_message);
+  }
+
+  if (recv_checksum != calculated_checksum) {
+    ESP_LOGV(TAG, "Checksum fail - expected %X - got %X", calculated_checksum, recv_checksum);
+    return false;
+  }
+
+  if (recv_message_type == FUJITSU_GENERAL_MESSAGE_TYPE_STATE) {
+    const uint8_t recv_tempertature = GET_NIBBLE(recv_message, FUJITSU_GENERAL_TEMPERATURE_NIBBLE);
+    const uint8_t offset_temperature = recv_tempertature + FUJITSU_GENERAL_TEMP_MIN;
+    this->target_temperature = offset_temperature;
+    ESP_LOGV(TAG, "Received temperature %d", offset_temperature);
+
+    const uint8_t recv_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_MODE_NIBBLE);
+    ESP_LOGV(TAG, "Received mode %X", recv_mode);
+    switch (recv_mode) {
+      case FUJITSU_GENERAL_MODE_COOL:
+        this->mode = climate::CLIMATE_MODE_COOL;
+        break;
+      case FUJITSU_GENERAL_MODE_HEAT:
+        this->mode = climate::CLIMATE_MODE_HEAT;
+        break;
+      case FUJITSU_GENERAL_MODE_DRY:
+        this->mode = climate::CLIMATE_MODE_DRY;
+        break;
+      case FUJITSU_GENERAL_MODE_FAN:
+        this->mode = climate::CLIMATE_MODE_FAN_ONLY;
+        break;
+      case FUJITSU_GENERAL_MODE_AUTO:
+      default:
+        // TODO: CLIMATE_MODE_10C is missing from esphome
+        this->mode = climate::CLIMATE_MODE_AUTO;
+        break;
+    }
+
+    const uint8_t recv_fan_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_FAN_NIBBLE);
+    ESP_LOGV(TAG, "Received fan mode %X", recv_fan_mode);
+    switch (recv_fan_mode) {
+      // TODO No Quiet / Silent in ESPH
+      case FUJITSU_GENERAL_FAN_SILENT:
+      case FUJITSU_GENERAL_FAN_LOW:
+        this->fan_mode = climate::CLIMATE_FAN_LOW;
+        break;
+      case FUJITSU_GENERAL_FAN_MEDIUM:
+        this->fan_mode = climate::CLIMATE_FAN_MEDIUM;
+        break;
+      case FUJITSU_GENERAL_FAN_HIGH:
+        this->fan_mode = climate::CLIMATE_FAN_HIGH;
+        break;
+      case FUJITSU_GENERAL_FAN_AUTO:
+      default:
+        this->fan_mode = climate::CLIMATE_FAN_AUTO;
+        break;
+    }
+
+    const uint8_t recv_swing_mode = GET_NIBBLE(recv_message, FUJITSU_GENERAL_SWING_NIBBLE);
+    ESP_LOGV(TAG, "Received swing mode %X", recv_swing_mode);
+    switch (recv_swing_mode) {
+      case FUJITSU_GENERAL_SWING_VERTICAL:
+        this->swing_mode = climate::CLIMATE_SWING_VERTICAL;
+        break;
+      case FUJITSU_GENERAL_SWING_HORIZONTAL:
+        this->swing_mode = climate::CLIMATE_SWING_HORIZONTAL;
+        break;
+      case FUJITSU_GENERAL_SWING_BOTH:
+        this->swing_mode = climate::CLIMATE_SWING_BOTH;
+        break;
+      case FUJITSU_GENERAL_SWING_NONE:
+      default:
+        this->swing_mode = climate::CLIMATE_SWING_OFF;
+    }
+
+    this->power_ = true;
+  }
+
+  else if (recv_message_type == FUJITSU_GENERAL_MESSAGE_TYPE_OFF) {
+    ESP_LOGV(TAG, "Received off message");
+    this->mode = climate::CLIMATE_MODE_OFF;
     this->power_ = false;
+  }
+
+  else {
+    ESP_LOGV(TAG, "Received unsupprted message type %X", recv_message_type);
+    return false;
+  }
+
+  this->publish_state();
+  return true;
 }
 
 }  // namespace fujitsu_general

esphome/components/fujitsu_general/fujitsu_general.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "esphome/core/log.h"
 #include "esphome/core/component.h"
 #include "esphome/core/automation.h"
 #include "esphome/components/climate_ir/climate_ir.h"
@@ -7,9 +8,17 @@
 namespace esphome {
 namespace fujitsu_general {
 
+const uint8_t FUJITSU_GENERAL_TEMP_MIN = 16;  // Celsius // TODO 16 for heating, 18 for cooling, unsupported in ESPH
+const uint8_t FUJITSU_GENERAL_TEMP_MAX = 30;  // Celsius
+
 class FujitsuGeneralClimate : public climate_ir::ClimateIR {
  public:
-  FujitsuGeneralClimate();
+  FujitsuGeneralClimate()
+      : ClimateIR(FUJITSU_GENERAL_TEMP_MIN, FUJITSU_GENERAL_TEMP_MAX, 1.0f, true, true,
+                  {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM,
+                   climate::CLIMATE_FAN_HIGH},
+                  {climate::CLIMATE_SWING_OFF, climate::CLIMATE_SWING_VERTICAL, climate::CLIMATE_SWING_HORIZONTAL,
+                   climate::CLIMATE_SWING_BOTH}) {}
 
  protected:
   /// Transmit via IR the state of this climate controller.
@@ -17,6 +26,19 @@ class FujitsuGeneralClimate : public climate_ir::ClimateIR {
   /// Transmit via IR power off command.
   void transmit_off_();
 
+  /// Parse incomming message
+  bool on_receive(remote_base::RemoteReceiveData data) override;
+
+  /// Transmit message as IR pulses
+  void transmit_(uint8_t const* message, uint8_t length);
+
+  /// Calculate checksum for a state message
+  uint8_t checksum_state_(uint8_t const* message);
+
+  /// Calculate cecksum for a util message
+  uint8_t checksum_util_(uint8_t const* message);
+
+  // true if currently on - fujitsus transmit an on flag on when the remote moves from off to on
   bool power_{false};
 };