Tasmota/lib/IRremoteESP8266-2.5.2.03/src/ir_Mitsubishi.cpp

// Copyright 2009 Ken Shirriff
// Copyright 2017-2018 David Conran
// Copyright 2018 Denes Varga

#include "ir_Mitsubishi.h"
#include <algorithm>
#ifndef ARDUINO
#include <string>
#endif
#include "IRrecv.h"
#include "IRsend.h"
#include "IRutils.h"

//    MMMMM  IIIII TTTTT   SSSS  U   U  BBBB   IIIII   SSSS  H   H  IIIII
//    M M M    I     T    S      U   U  B   B    I    S      H   H    I
//    M M M    I     T     SSS   U   U  BBBB     I     SSS   HHHHH    I
//    M   M    I     T        S  U   U  B   B    I        S  H   H    I
//    M   M  IIIII   T    SSSS    UUU   BBBBB  IIIII  SSSS   H   H  IIIII

// Mitsubishi (TV) decoding added from https://github.com/z3t0/Arduino-IRremote
// Mitsubishi (TV) sending & Mitsubishi A/C support added by David Conran

// Constants
// Mitsubishi TV
// period time is 1/33000Hz = 30.303 uSeconds (T)
// Ref:
//   GlobalCache's Control Tower's Mitsubishi TV data.
//   https://github.com/marcosamarinho/IRremoteESP8266/blob/master/ir_Mitsubishi.cpp
const uint16_t kMitsubishiTick = 30;
const uint16_t kMitsubishiBitMarkTicks = 10;
const uint16_t kMitsubishiBitMark = kMitsubishiBitMarkTicks * kMitsubishiTick;
const uint16_t kMitsubishiOneSpaceTicks = 70;
const uint16_t kMitsubishiOneSpace = kMitsubishiOneSpaceTicks * kMitsubishiTick;
const uint16_t kMitsubishiZeroSpaceTicks = 30;
const uint16_t kMitsubishiZeroSpace =
    kMitsubishiZeroSpaceTicks * kMitsubishiTick;
const uint16_t kMitsubishiMinCommandLengthTicks = 1786;
const uint16_t kMitsubishiMinCommandLength =
    kMitsubishiMinCommandLengthTicks * kMitsubishiTick;
const uint16_t kMitsubishiMinGapTicks = 936;
const uint16_t kMitsubishiMinGap = kMitsubishiMinGapTicks * kMitsubishiTick;

// Mitsubishi Projector (HC3000)
// Ref:
//   https://github.com/markszabo/IRremoteESP8266/issues/441

const uint16_t kMitsubishi2HdrMark = 8400;
const uint16_t kMitsubishi2HdrSpace = kMitsubishi2HdrMark / 2;
const uint16_t kMitsubishi2BitMark = 560;
const uint16_t kMitsubishi2ZeroSpace = 520;
const uint16_t kMitsubishi2OneSpace = kMitsubishi2ZeroSpace * 3;
const uint16_t kMitsubishi2MinGap = 28500;

// Mitsubishi A/C
// Ref:
//   https://github.com/r45635/HVAC-IR-Control/blob/master/HVAC_ESP8266/HVAC_ESP8266.ino#L84

const uint16_t kMitsubishiAcHdrMark = 3400;
const uint16_t kMitsubishiAcHdrSpace = 1750;
const uint16_t kMitsubishiAcBitMark = 450;
const uint16_t kMitsubishiAcOneSpace = 1300;
const uint16_t kMitsubishiAcZeroSpace = 420;
const uint16_t kMitsubishiAcRptMark = 440;
const uint16_t kMitsubishiAcRptSpace = 17100;

#if SEND_MITSUBISHI
// Send a Mitsubishi message
//
// Args:
//   data:   Contents of the message to be sent.
//   nbits:  Nr. of bits of data to be sent. Typically kMitsubishiBits.
//   repeat: Nr. of additional times the message is to be sent.
//
// Status: ALPHA / untested.
//
// Notes:
//   This protocol appears to have no header.
// Ref:
//   https://github.com/marcosamarinho/IRremoteESP8266/blob/master/ir_Mitsubishi.cpp
//   GlobalCache's Control Tower's Mitsubishi TV data.
void IRsend::sendMitsubishi(uint64_t data, uint16_t nbits, uint16_t repeat) {
  sendGeneric(0, 0,  // No Header
              kMitsubishiBitMark, kMitsubishiOneSpace, kMitsubishiBitMark,
              kMitsubishiZeroSpace, kMitsubishiBitMark, kMitsubishiMinGap,
              kMitsubishiMinCommandLength, data, nbits, 33, true, repeat, 50);
}
#endif  // SEND_MITSUBISHI

#if DECODE_MITSUBISHI
// Decode the supplied Mitsubishi message.
//
// Args:
//   results: Ptr to the data to decode and where to store the decode result.
//   nbits:   Nr. of data bits to expect.
//   strict:  Flag indicating if we should perform strict matching.
// Returns:
//   boolean: True if it can decode it, false if it can't.
//
// Status: BETA / previously working.
//
// Notes:
//   This protocol appears to have no header.
//
// Ref:
//   GlobalCache's Control Tower's Mitsubishi TV data.
bool IRrecv::decodeMitsubishi(decode_results *results, uint16_t nbits,
                              bool strict) {
  if (results->rawlen < 2 * nbits + kFooter - 1)
    return false;  // Shorter than shortest possibly expected.
  if (strict && nbits != kMitsubishiBits)
    return false;  // Request is out of spec.

  uint16_t offset = kStartOffset;
  uint64_t data = 0;

  // No Header
  // But try to auto-calibrate off the initial mark signal.
  if (!matchMark(results->rawbuf[offset], kMitsubishiBitMark, 30)) return false;
  // Calculate how long the common tick time is based on the initial mark.
  uint32_t tick = results->rawbuf[offset] * kRawTick / kMitsubishiBitMarkTicks;

  // Data
  match_result_t data_result = matchData(
      &(results->rawbuf[offset]), nbits, kMitsubishiBitMarkTicks * tick,
      kMitsubishiOneSpaceTicks * tick, kMitsubishiBitMarkTicks * tick,
      kMitsubishiZeroSpaceTicks * tick);
  if (data_result.success == false) return false;
  data = data_result.data;
  offset += data_result.used;
  uint16_t actualBits = data_result.used / 2;

  // Footer
  if (!matchMark(results->rawbuf[offset++], kMitsubishiBitMarkTicks * tick, 30))
    return false;
  if (offset < results->rawlen &&
      !matchAtLeast(results->rawbuf[offset], kMitsubishiMinGapTicks * tick))
    return false;

  // Compliance
  if (actualBits < nbits) return false;
  if (strict && actualBits != nbits) return false;  // Not as we expected.

  // Success
  results->decode_type = MITSUBISHI;
  results->bits = actualBits;
  results->value = data;
  results->address = 0;
  results->command = 0;
  return true;
}
#endif  // DECODE_MITSUBISHI

#if SEND_MITSUBISHI2
// Send a Mitsubishi2 message
//
// Args:
//   data:   Contents of the message to be sent.
//   nbits:  Nr. of bits of data to be sent. Typically kMitsubishiBits.
//   repeat: Nr. of additional times the message is to be sent.
//
// Status: ALPHA / untested.
//
// Notes:
//   Based on a Mitsubishi HC3000 projector's remote.
//   This protocol appears to have a manditory in-protocol repeat.
//   That is in *addition* to the entire message needing to be sent twice
//   for the device to accept the command. That is separate from the repeat.
//   i.e. Allegedly, the real remote requires the "OFF" button pressed twice.
//        You will need to add a suitable gap yourself.
// Ref:
//   https://github.com/markszabo/IRremoteESP8266/issues/441
void IRsend::sendMitsubishi2(uint64_t data, uint16_t nbits, uint16_t repeat) {
  for (uint16_t i = 0; i <= repeat; i++) {
    // First half of the data.
    sendGeneric(kMitsubishi2HdrMark, kMitsubishi2HdrSpace, kMitsubishi2BitMark,
                kMitsubishi2OneSpace, kMitsubishi2BitMark,
                kMitsubishi2ZeroSpace, kMitsubishi2BitMark,
                kMitsubishi2HdrSpace, data >> (nbits / 2), nbits / 2, 33, true,
                0, 50);
    // Second half of the data.
    sendGeneric(0, 0,  // No header for the second data block
                kMitsubishi2BitMark, kMitsubishi2OneSpace, kMitsubishi2BitMark,
                kMitsubishi2ZeroSpace, kMitsubishi2BitMark, kMitsubishi2MinGap,
                data & ((1 << (nbits / 2)) - 1), nbits / 2, 33, true, 0, 50);
  }
}
#endif  // SEND_MITSUBISHI2

#if DECODE_MITSUBISHI2
// Decode the supplied Mitsubishi2 message.
//
// Args:
//   results: Ptr to the data to decode and where to store the decode result.
//   nbits:   Nr. of data bits to expect.
//   strict:  Flag indicating if we should perform strict matching.
// Returns:
//   boolean: True if it can decode it, false if it can't.
//
// Status: BETA / Works with simulated data.
//
// Notes:
//   Hardware supported:
//     * Mitsubishi HC3000 projector's remote.
//
// Ref:
//   https://github.com/markszabo/IRremoteESP8266/issues/441
bool IRrecv::decodeMitsubishi2(decode_results *results, uint16_t nbits,
                               bool strict) {
  if (results->rawlen < 2 * nbits + kHeader + (kFooter * 2) - 1)
    return false;  // Shorter than shortest possibly expected.
  if (strict && nbits != kMitsubishiBits)
    return false;  // Request is out of spec.

  uint16_t offset = kStartOffset;
  uint64_t data = 0;
  uint16_t actualBits = 0;

  // Header
  if (!matchMark(results->rawbuf[offset++], kMitsubishi2HdrMark)) return false;
  if (!matchSpace(results->rawbuf[offset++], kMitsubishi2HdrSpace))
    return false;
  for (uint8_t i = 1; i <= 2; i++) {
    // Data
    match_result_t data_result = matchData(
        &(results->rawbuf[offset]), nbits / 2, kMitsubishi2BitMark,
        kMitsubishi2OneSpace, kMitsubishi2BitMark, kMitsubishi2ZeroSpace);
    if (data_result.success == false) return false;
    data <<= nbits / 2;
    data += data_result.data;
    offset += data_result.used;
    actualBits += data_result.used / 2;

    // Footer
    if (!matchMark(results->rawbuf[offset++], kMitsubishi2BitMark))
      return false;
    if (i % 2) {  // Every odd data block, we expect a HDR space.
      if (!matchSpace(results->rawbuf[offset++], kMitsubishi2HdrSpace))
        return false;
    } else {  // Every even data block, we expect Min Gap or end of the message.
      if (offset < results->rawlen &&
          !matchAtLeast(results->rawbuf[offset++], kMitsubishi2MinGap))
        return false;
    }
  }

  // Compliance
  if (actualBits < nbits) return false;
  if (strict && actualBits != nbits) return false;  // Not as we expected.

  // Success
  results->decode_type = MITSUBISHI2;
  results->bits = actualBits;
  results->value = data;
  results->address = data >> actualBits / 2;
  results->command = data & ((1 << (actualBits / 2)) - 1);
  return true;
}
#endif  // DECODE_MITSUBISHI2

#if SEND_MITSUBISHI_AC
// Send a Mitsubishi A/C message.
//
// Args:
//   data: An array of bytes containing the IR command.
//   nbytes: Nr. of bytes of data in the array. (>=kMitsubishiACStateLength)
//   repeat: Nr. of times the message is to be repeated.
//          (Default = kMitsubishiACMinRepeat).
//
// Status: BETA / Appears to be working.
//
void IRsend::sendMitsubishiAC(unsigned char data[], uint16_t nbytes,
                              uint16_t repeat) {
  if (nbytes < kMitsubishiACStateLength)
    return;  // Not enough bytes to send a proper message.

  sendGeneric(kMitsubishiAcHdrMark, kMitsubishiAcHdrSpace, kMitsubishiAcBitMark,
              kMitsubishiAcOneSpace, kMitsubishiAcBitMark,
              kMitsubishiAcZeroSpace, kMitsubishiAcRptMark,
              kMitsubishiAcRptSpace, data, nbytes, 38, false, repeat, 50);
}
#endif  // SEND_MITSUBISHI_AC

#if DECODE_MITSUBISHI_AC
// Decode the supplied Mitsubishi message.
//
// Args:
//   results: Ptr to the data to decode and where to store the decode result.
//   nbits:   Nr. of data bits to expect.
//   strict:  Flag indicating if we should perform strict matching.
// Returns:
//   boolean: True if it can decode it, false if it can't.
//
// Status: ALPHA / Under development
//
// Ref:
// https://www.analysir.com/blog/2015/01/06/reverse-engineering-mitsubishi-ac-infrared-protocol/
bool IRrecv::decodeMitsubishiAC(decode_results *results, uint16_t nbits,
                                bool strict) {
  if (results->rawlen < ((kMitsubishiACBits * 2) + 2)) {
    DPRINTLN("Shorter than shortest possibly expected.");
    return false;  // Shorter than shortest possibly expected.
  }
  if (strict && nbits != kMitsubishiACBits) {
    DPRINTLN("Request is out of spec.");
    return false;  // Request is out of spec.
  }
  uint16_t offset = kStartOffset;
  for (uint8_t i = 0; i < kMitsubishiACStateLength; i++) {
    results->state[i] = 0;
  }
  bool failure = false;
  uint8_t rep = 0;
  do {
    failure = false;
    // Header:
    //  Somtime happens that junk signals arrives before the real message
    bool headerFound = false;
    while (!headerFound &&
           offset < (results->rawlen - (kMitsubishiACBits * 2 + 2))) {
      headerFound =
          matchMark(results->rawbuf[offset++], kMitsubishiAcHdrMark) &&
          matchSpace(results->rawbuf[offset++], kMitsubishiAcHdrSpace);
    }
    if (!headerFound) {
      DPRINTLN("Header mark not found.");
      failure = true;
    }
    // Decode byte-by-byte:
    match_result_t data_result;
    for (uint8_t i = 0; i < kMitsubishiACStateLength && !failure; i++) {
      results->state[i] = 0;
      data_result =
          matchData(&(results->rawbuf[offset]), 8, kMitsubishiAcBitMark,
                    kMitsubishiAcOneSpace, kMitsubishiAcBitMark,
                    kMitsubishiAcZeroSpace, kTolerance, kMarkExcess, false);
      if (data_result.success == false) {
        failure = true;
        DPRINT("Byte decode failed at #");
        DPRINTLN((uint16_t)i);
      } else {
        results->state[i] = data_result.data;
        offset += data_result.used;
        DPRINT((uint16_t)results->state[i]);
        DPRINT(",");
      }
      DPRINTLN("");
    }
    // HEADER validation:
    if (failure || results->state[0] != 0x23 || results->state[1] != 0xCB ||
        results->state[2] != 0x26 || results->state[3] != 0x01 ||
        results->state[4] != 0x00) {
      DPRINTLN("Header mismatch.");
      failure = true;
    } else {
      // DATA part:

      // FOOTER checksum:
      if (IRMitsubishiAC::calculateChecksum(results->state) !=
          results->state[kMitsubishiACStateLength - 1]) {
        DPRINTLN("Checksum error.");
        failure = true;
      }
    }
    if (rep != kMitsubishiACMinRepeat && failure) {
      bool repeatMarkFound = false;
      while (!repeatMarkFound &&
             offset < (results->rawlen - (kMitsubishiACBits * 2 + 4))) {
        repeatMarkFound =
            matchMark(results->rawbuf[offset++], kMitsubishiAcRptMark) &&
            matchSpace(results->rawbuf[offset++], kMitsubishiAcRptSpace);
      }
      if (!repeatMarkFound) {
        DPRINTLN("First attempt failure and repeat mark not found.");
        return false;
      }
    }
    rep++;
    // Check if the repeat is correct if we need strict decode:
    if (strict && !failure) {
      DPRINTLN("Strict repeat check enabled.");
      // Repeat mark and space:
      if (!matchMark(results->rawbuf[offset++], kMitsubishiAcRptMark) ||
          !matchSpace(results->rawbuf[offset++], kMitsubishiAcRptSpace)) {
        DPRINTLN("Repeat mark error.");
        return false;
      }
      // Header mark and space:
      if (!matchMark(results->rawbuf[offset++], kMitsubishiAcHdrMark) ||
          !matchSpace(results->rawbuf[offset++], kMitsubishiAcHdrSpace)) {
        DPRINTLN("Repeat header error.");
        return false;
      }
      // Payload:
      for (uint8_t i = 0; i < kMitsubishiACStateLength; i++) {
        data_result =
            matchData(&(results->rawbuf[offset]), 8, kMitsubishiAcBitMark,
                      kMitsubishiAcOneSpace, kMitsubishiAcBitMark,
                      kMitsubishiAcZeroSpace, kTolerance, kMarkExcess, false);
        if (data_result.success == false ||
            data_result.data != results->state[i]) {
          DPRINTLN("Repeat payload error.");
          return false;
        }
        offset += data_result.used;
      }
    }  // strict repeat check
  } while (failure && rep <= kMitsubishiACMinRepeat);
  results->decode_type = MITSUBISHI_AC;
  results->bits = kMitsubishiACStateLength * 8;
  return true;
}
#endif  // DECODE_MITSUBISHI_AC

// Code to emulate Mitsubishi A/C IR remote control unit.
// Inspired and derived from the work done at:
//   https://github.com/r45635/HVAC-IR-Control
//
// Warning: Consider this very alpha code. Seems to work, but not validated.
//
// Equipment it seems compatible with:
//  * <Add models (A/C & remotes) you've gotten it working with here>
// Initialise the object.
IRMitsubishiAC::IRMitsubishiAC(uint16_t pin) : _irsend(pin) { stateReset(); }

// Reset the state of the remote to a known good state/sequence.
void IRMitsubishiAC::stateReset() {
  // The state of the IR remote in IR code form.
  // Known good state obtained from:
  //   https://github.com/r45635/HVAC-IR-Control/blob/master/HVAC_ESP8266/HVAC_ESP8266.ino#L108
  // Note: Can't use the following because it requires -std=c++11
  // uint8_t known_good_state[kMitsubishiACStateLength] = {
  //    0x23, 0xCB, 0x26, 0x01, 0x00, 0x20, 0x08, 0x06, 0x30, 0x45, 0x67, 0x00,
  //    0x00, 0x00, 0x00, 0x00, 0x00, 0x1F};
  remote_state[0] = 0x23;
  remote_state[1] = 0xCB;
  remote_state[2] = 0x26;
  remote_state[3] = 0x01;
  remote_state[4] = 0x00;
  remote_state[5] = 0x20;
  remote_state[6] = 0x08;
  remote_state[7] = 0x06;
  remote_state[8] = 0x30;
  remote_state[9] = 0x45;
  remote_state[10] = 0x67;
  for (uint8_t i = 11; i < kMitsubishiACStateLength - 1; i++)
    remote_state[i] = 0;
  remote_state[kMitsubishiACStateLength - 1] = 0x1F;
  checksum();  // Calculate the checksum
}

// Configure the pin for output.
void IRMitsubishiAC::begin() { _irsend.begin(); }

#if SEND_MITSUBISHI_AC
// Send the current desired state to the IR LED.
void IRMitsubishiAC::send() {
  checksum();  // Ensure correct checksum before sending.
  _irsend.sendMitsubishiAC(remote_state);
}
#endif  // SEND_MITSUBISHI_AC

// Return a pointer to the internal state date of the remote.
uint8_t *IRMitsubishiAC::getRaw() {
  checksum();
  return remote_state;
}

void IRMitsubishiAC::setRaw(uint8_t *data) {
  for (uint8_t i = 0; i < (kMitsubishiACStateLength - 1); i++) {
    remote_state[i] = data[i];
  }
  checksum();
}

// Calculate the checksum for the current internal state of the remote.
void IRMitsubishiAC::checksum() {
  remote_state[17] = calculateChecksum(remote_state);
}

uint8_t IRMitsubishiAC::calculateChecksum(uint8_t *data) {
  uint8_t sum = 0;
  // Checksum is simple addition of all previous bytes stored
  // as an 8 bit value.
  for (uint8_t i = 0; i < 17; i++) sum += data[i];
  return sum & 0xFFU;
}

// Set the requested power state of the A/C to off.
void IRMitsubishiAC::on() {
  // state = ON;
  remote_state[5] |= kMitsubishiAcPower;
}

// Set the requested power state of the A/C to off.
void IRMitsubishiAC::off() {
  // state = OFF;
  remote_state[5] &= ~kMitsubishiAcPower;
}

// Set the requested power state of the A/C.
void IRMitsubishiAC::setPower(bool state) {
  if (state)
    on();
  else
    off();
}

// Return the requested power state of the A/C.
bool IRMitsubishiAC::getPower() {
  return ((remote_state[5] & kMitsubishiAcPower) != 0);
}

// Set the temp. in deg C
void IRMitsubishiAC::setTemp(uint8_t temp) {
  temp = std::max((uint8_t)kMitsubishiAcMinTemp, temp);
  temp = std::min((uint8_t)kMitsubishiAcMaxTemp, temp);
  remote_state[7] = temp - kMitsubishiAcMinTemp;
}

// Return the set temp. in deg C
uint8_t IRMitsubishiAC::getTemp() {
  return (remote_state[7] + kMitsubishiAcMinTemp);
}

// Set the speed of the fan, 0-6.
// 0 is auto, 1-5 is the speed, 6 is silent.
void IRMitsubishiAC::setFan(uint8_t fan) {
  // Bounds check
  if (fan > kMitsubishiAcFanSilent)
    fan = kMitsubishiAcFanMax;        // Set the fan to maximum if out of range.
  if (fan == kMitsubishiAcFanAuto) {  // Automatic is a special case.
    remote_state[9] = 0b10000000 | (remote_state[9] & 0b01111000);
    return;
  } else if (fan >= kMitsubishiAcFanMax) {
    fan--;  // There is no spoon^H^H^Heed 5 (max), pretend it doesn't exist.
  }
  remote_state[9] &= 0b01111000;  // Clear the previous state
  remote_state[9] |= fan;
}

// Return the requested state of the unit's fan.
uint8_t IRMitsubishiAC::getFan() {
  uint8_t fan = remote_state[9] & 0b111;
  if (fan == kMitsubishiAcFanMax) return kMitsubishiAcFanSilent;
  return fan;
}

// Return the requested climate operation mode of the a/c unit.
uint8_t IRMitsubishiAC::getMode() { return (remote_state[6]); }

// Set the requested climate operation mode of the a/c unit.
void IRMitsubishiAC::setMode(uint8_t mode) {
  // If we get an unexpected mode, default to AUTO.
  switch (mode) {
    case kMitsubishiAcAuto:
      remote_state[8] = 0b00110000;
      break;
    case kMitsubishiAcCool:
      remote_state[8] = 0b00110110;
      break;
    case kMitsubishiAcDry:
      remote_state[8] = 0b00110010;
      break;
    case kMitsubishiAcHeat:
      remote_state[8] = 0b00110000;
      break;
    default:
      mode = kMitsubishiAcAuto;
      remote_state[8] = 0b00110000;
  }
  remote_state[6] = mode;
}

// Set the requested vane operation mode of the a/c unit.
void IRMitsubishiAC::setVane(uint8_t mode) {
  mode = std::min(mode, (uint8_t)0b111);  // bounds check
  mode |= 0b1000;
  mode <<= 3;
  remote_state[9] &= 0b11000111;  // Clear the previous setting.
  remote_state[9] |= mode;
}

// Return the requested vane operation mode of the a/c unit.
uint8_t IRMitsubishiAC::getVane() {
  return ((remote_state[9] & 0b00111000) >> 3);
}

// Return the clock setting of the message. 1=1/6 hour. e.g. 4pm = 48
uint8_t IRMitsubishiAC::getClock() { return remote_state[10]; }

// Set the current time. 1 = 1/6 hour. e.g. 6am = 36.
void IRMitsubishiAC::setClock(uint8_t clock) { remote_state[10] = clock; }

// Return the desired start time. 1 = 1/6 hour. e.g. 1am = 6
uint8_t IRMitsubishiAC::getStartClock() { return remote_state[12]; }

// Set the desired start tiem of the AC.  1 = 1/6 hour. e.g. 8pm = 120
void IRMitsubishiAC::setStartClock(uint8_t clock) { remote_state[12] = clock; }

// Return the desired stop time of the AC. 1 = 1/6 hour. e.g 10pm = 132
uint8_t IRMitsubishiAC::getStopClock() { return remote_state[11]; }

// Set the desired stop time of the AC. 1 = 1/6 hour. e.g 10pm = 132
void IRMitsubishiAC::setStopClock(uint8_t clock) { remote_state[11] = clock; }

// Return the timer setting. Possible values: kMitsubishiAcNoTimer,
//  kMitsubishiAcStartTimer, kMitsubishiAcStopTimer,
//  kMitsubishiAcStartStopTimer
uint8_t IRMitsubishiAC::getTimer() { return remote_state[13] & 0b111; }

// Set the timer setting. Possible values: kMitsubishiAcNoTimer,
//  kMitsubishiAcStartTimer, kMitsubishiAcStopTimer,
//  kMitsubishiAcStartStopTimer
void IRMitsubishiAC::setTimer(uint8_t timer) {
  remote_state[13] = timer & 0b111;
}

#ifdef ARDUINO
String IRMitsubishiAC::timeToString(uint64_t time) {
  String result = "";
#else
std::string IRMitsubishiAC::timeToString(uint64_t time) {
  std::string result = "";
#endif  // ARDUINO
  if (time / 6 < 10) result += "0";
  result += uint64ToString(time / 6);
  result += ":";
  if (time * 10 % 60 < 10) result += "0";
  result += uint64ToString(time * 10 % 60);
  return result;
}

// Convert the internal state into a human readable string.
#ifdef ARDUINO
String IRMitsubishiAC::toString() {
  String result = "";
#else
std::string IRMitsubishiAC::toString() {
  std::string result = "";
#endif  // ARDUINO
  result += "Power: ";
  if (getPower())
    result += "On";
  else
    result += "Off";
  switch (getMode()) {
    case MITSUBISHI_AC_AUTO:
      result += " (AUTO)";
      break;
    case MITSUBISHI_AC_COOL:
      result += " (COOL)";
      break;
    case MITSUBISHI_AC_DRY:
      result += " (DRY)";
      break;
    case MITSUBISHI_AC_HEAT:
      result += " (HEAT)";
      break;
    default:
      result += " (UNKNOWN)";
  }
  result += ", Temp: " + uint64ToString(getTemp()) + "C";
  result += ", FAN: ";
  switch (getFan()) {
    case MITSUBISHI_AC_FAN_AUTO:
      result += "AUTO";
      break;
    case MITSUBISHI_AC_FAN_MAX:
      result += "MAX";
      break;
    case MITSUBISHI_AC_FAN_SILENT:
      result += "SILENT";
      break;
    default:
      result += uint64ToString(getFan());
  }
  result += ", VANE: ";
  switch (getVane()) {
    case MITSUBISHI_AC_VANE_AUTO:
      result += "AUTO";
      break;
    case MITSUBISHI_AC_VANE_AUTO_MOVE:
      result += "AUTO MOVE";
      break;
    default:
      result += uint64ToString(getVane());
  }
  result += ", Time: ";
  result += timeToString(getClock());
  result += ", On timer: ";
  result += timeToString(getStartClock());
  result += ", Off timer: ";
  result += timeToString(getStopClock());
  result += ", Timer: ";
  switch (getTimer()) {
    case kMitsubishiAcNoTimer:
      result += "-";
      break;
    case kMitsubishiAcStartTimer:
      result += "Start";
      break;
    case kMitsubishiAcStopTimer:
      result += "Stop";
      break;
    case kMitsubishiAcStartStopTimer:
      result += "Start+Stop";
      break;
    default:
      result += "? (";
      result += getTimer();
      result += ")\n";
  }
  return result;
}