SharpHeatpumpIR.cpp

#include <SharpHeatpumpIR.h>


SharpHeatpumpIR::SharpHeatpumpIR() : HeatpumpIR()
{
  static const char PROGMEM model[] PROGMEM = "sharp";
  static const char PROGMEM info[]  PROGMEM = "{\"mdl\":\"sharp\",\"dn\":\"Sharp AY-ZP40KR\",\"mT\":18,\"xT\":32,\"fs\":3,\"maint\":[10]}}";

  _model = model;
  _info = info;
}


void SharpHeatpumpIR::send(IRSender& IR, uint8_t powerModeCmd, uint8_t operatingModeCmd, uint8_t fanSpeedCmd, uint8_t temperatureCmd, uint8_t swingVCmd, uint8_t swingHCmd)
{
  (void)swingVCmd;
  (void)swingHCmd;

  // Sensible defaults for the heat pump mode

  uint8_t powerMode     = SHARP_AIRCON1_MODE_ON;
  uint8_t operatingMode = SHARP_AIRCON1_MODE_HEAT;
  uint8_t fanSpeed      = SHARP_AIRCON1_FAN_AUTO;
  uint8_t temperature   = 23;

  if (powerModeCmd == 0)
  {
    powerMode = SHARP_AIRCON1_MODE_OFF;
  }

  switch (operatingModeCmd)
  {
    case MODE_HEAT:
      operatingMode = SHARP_AIRCON1_MODE_HEAT;
      break;
    case MODE_COOL:
      operatingMode = SHARP_AIRCON1_MODE_COOL;
      break;
    case MODE_DRY:
      operatingMode = SHARP_AIRCON1_MODE_DRY;
      temperatureCmd = 10;
      break;
    case MODE_FAN:
      operatingMode = SHARP_AIRCON1_MODE_COOL;
      // Temperature needs to be set to 32 degrees for 'simulated' FAN mode
      temperatureCmd = 32;
      break;
    case MODE_MAINT: // Maintenance mode is just the heat mode at +8 or +10, FAN5
      operatingMode |= SHARP_AIRCON1_MODE_HEAT;
      temperature = 10;
      fanSpeedCmd = FAN_5;
      break;
  }

  switch (fanSpeedCmd)
  {
    case FAN_AUTO:
      fanSpeed = SHARP_AIRCON1_FAN_AUTO;
      break;
    case FAN_1:
      fanSpeed = SHARP_AIRCON1_FAN1;
      break;
    case FAN_2:
      fanSpeed = SHARP_AIRCON1_FAN2;
      break;
    case FAN_3:
      fanSpeed = SHARP_AIRCON1_FAN3;
      break;
  }

  if ( temperatureCmd > 16 && temperatureCmd < 32)
  {
    temperature = temperatureCmd;
  }

  sendSharp(IR, powerMode, operatingMode, fanSpeed, temperature);
}

void SharpHeatpumpIR::sendSharp(IRSender& IR, uint8_t powerMode, uint8_t operatingMode, uint8_t fanSpeed, uint8_t temperature)
{
  uint8_t SharpTemplate[] = { 0xAA, 0x5A, 0xCF, 0x10, 0x00, 0x00, 0x00, 0x06, 0x08, 0x80, 0x04, 0xF0, 0x01 };
  //                             0     1     2     3     4     5     6     7     8     9    10    11    12

  uint8_t checksum = 0x00;

  // Set the power mode on the template message
  SharpTemplate[5] = powerMode;

  // Set the fan speed & operating mode on the template message
  SharpTemplate[6] = fanSpeed | operatingMode;

  // Set the temperature on the template message
  if (temperature == 10) {
    SharpTemplate[4] = 0x00; // Maintenance mode temperature
  } else {
    SharpTemplate[4] = (temperature - 17);
  }

  // Calculate the checksum
  for (int i=0; i<12; i++) {
    checksum ^= SharpTemplate[i];
  }

  checksum ^= SharpTemplate[12] & 0x0F;
  checksum ^= (checksum >> 4);
  checksum &= 0x0F;

  SharpTemplate[12] |= (checksum << 4);

  // 38 kHz PWM frequency
  IR.setFrequency(38);

  // Header
  IR.mark(SHARP_AIRCON1_HDR_MARK);
  IR.space(SHARP_AIRCON1_HDR_SPACE);

  // Data
  for (unsigned int i=0; i<sizeof(SharpTemplate); i++) {
    IR.sendIRbyte(SharpTemplate[i], SHARP_AIRCON1_BIT_MARK, SHARP_AIRCON1_ZERO_SPACE, SHARP_AIRCON1_ONE_SPACE);
  }

  // End mark
  IR.mark(SHARP_AIRCON1_BIT_MARK);
  IR.space(0);
}