Mitsubishi CODE Format

Mitsubishi CODE VALUE Format:
1 byte: fc (magic) (always)
20 bytes: commandString
1 byte: checksum (commandString added together byte for byte excluding the checksum) (always)
TOTAL: 22 bytes

commandString:
1 byte: transferMode (0x41 = write request, 0x42 = read request, 0x62 = read response)
3 byte: 01 30 10 (always)
1 byte: groupCode (see below)
15 bytes: data (dynamic depending on transferMode and groupCode)

Read (42) request data:
bytes[15]: 000000000000000000000000000000 (padding) (always)

Read (42) response data (depends on groupCode):
N/A

Write (41) request data (depends on groupCode):
01: Power/Mode/Temp
1 byte: flags (01 = powerState, 02 = deviceMode, 04 = setTemp, 08 = fanSpeed) (e.g. 01 just sends a power state, 07 means sending a combined power/mode/setTemp state) (you can 00 bytes you don't need when omitting the flags)
1 byte: unk (maybe getAck, 0 = off, 2 = do ack) (always 2)
1 byte: powerState (00 = off, 01 = on, 02 = also on/not used?) (when state is off, the next 11 bytes are all padded with 00)
1 byte: deviceMode (see below)
1 byte: convertTempFrac(195) (would stand for 19.5 degrees, 190 for 19.0) (likely encodes the frac part) (see below)
1 byte: fanSpeed (auto: 00, manual: 1x with the x denoting the fan speed 1-5)
byte[7]: unk2
1 byte: convertTempInt(195) (encodes the integer part) (see below)
1 byte: 42 (possibly magic or denotes a read will follow after with the ack) (always)

convertTempFrac(int tempIn):
int tempOut = 32 - (tempIn / 10) - 1;
string fracPart = tempIn.substr(2, 1);

if (fracPart == 5) //has a fractional part
return "1" + tempOut.toHex(); //must be 0-f (0-15)
else
return "0" + tempOut.toHex(); //must be 0-f (0-15)

convertTempInt(int tempIn):
return (tempIn / 5 + 128).toHex(); //1 byte max



Read (42) request full example:
1 byte: transferMode = 42
3 byte: 01 30 10 (always)
1 byte: groupCode (getState normally sends 4 VALUE tags in the CODE section, requesting respectively 02, 03, 05 and 09)
bytes[15]: 000000000000000000000000000000 (padding) (always)



WRITE groups:
01 = power state, mode (only when on), temp (only when on)
08 = dehum, power saving, buzzer, wind and wind break, notification for remote control navigation
15 = zoning data

READ groups:
02 = power state, device mode and tempChanger
03 = room temperature
04 = abnormal state
05 = timer settings
09 = auto mode type (warm/cool) and TouchFlowTrigger
c9 = thermal image support
cd = DehumDispPercent and power saving support
d0 = wind direction speed


Constants:
Power states:
00 = OFF
01 = ON
02 = ON

Device Modes:
LAUNDRY: 00
DEHUMIDIFICATION: 02
MANUAL_DEHUMIDIFICATION: 0a
PREVENTION_CONDENSATION: 0c (all grouped as DEHUMIDIFICATION)

WARM: 01
AUTO_WARM: 09 (both grouped as WARM)

COOL: 03
AUTO_COOL: 0b (both grouped as COOL)

BLAST: 07 (also known as FAN ONLY)
AUTO: 08
AI_MODE: 18 (undocumented)

WindAndWindBreak:
0: OFF
1: WIND_BREAK
2: WIND
3: NO_UNEVENNESS

wind dir and thermal support sends 08:
dehum = false, powerSaving = true, buzzer = false, windAndWindBreak = false, notificationForRemoteControlNavigation = false

normal sends:
dehum = false, powerSaving = false, buzzer = true, windAndWindBreak = false, notificationForRemoteControlNavigation = true