mistral_ir.h

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#pragma once
 
#include "esphome/components/climate_ir/climate_ir.h"
 
namespace esphome::mistral_ir {
 
// Temperature range, Celsius
constexpr uint8_t MISTRAL_TEMP_MIN = 16;
constexpr uint8_t MISTRAL_TEMP_MAX = 30;
 
constexpr uint16_t MISTRAL_ADDRESS = 0x322C;
constexpr size_t MISTRAL_FRAME_SIZE = 12;
 
/* Reverse-engineered protocol for a "Mistral" (Belgian brand, model MHFE1126A / MR112C) split AC unit
   from the 2000-2010 era, likely a rebadged OEM design. It is carried over AEHA IR timing (address
   0x322C) but does not match any protocol already implemented in ESPHome, so it is decoded/encoded
   directly here rather than through the generic AEHA helper.
 
   Frame layout (12 bytes): 56 xx 08 xx xx xx xx 00 E8 00 60 xx
     byte[1] / byte[6] -- fan speed
     byte[3]           -- power: 0x20 on, 0x00 off
     byte[4]           -- mode
     byte[5]           -- target temperature (bit-reversed offset from 0x9F)
     byte[11]          -- checksum: bit-reverse the sum of bit-reversed bytes 1, 3, 4, 5, 6, 8
*/
class MistralIR : public climate_ir::ClimateIR {
 public:
  MistralIR()
      : climate_ir::ClimateIR(MISTRAL_TEMP_MIN, MISTRAL_TEMP_MAX, 1.0f, true, true,
                              {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM,
                               climate::CLIMATE_FAN_HIGH}) {}
 
 protected:
  void transmit_state() override;
  bool on_receive(remote_base::RemoteReceiveData data) override;
};
 
}  // namespace esphome::mistral_ir