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IR Protocol Checksum
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| Never Changes Power/Hold Mode Temp Fan/Swing Parity? | |
| 1000100010001000100010001000100010001000 00100100 11000000 00000000 01000000 00000000000000000000000000000000 01111110 | |
| 1000100010001000100010001000100010001000 00100100 11000000 00000000 01100000 00000000000000000000000000000000 01000001 | |
| 1000100010001000100010001000100010001000 00100100 11000000 00000000 00100000 00000000000000000000000000000000 00000001 | |
| 1000100010001000100010001000100010001000 00100100 11000000 10010000 00100000 00000000000000000000000000000000 10010001 | |
| 1000100010001000100010001000100010001000 00100100 11000000 10010000 00110000 00000000000000000000000000000000 10001001 | |
| 1000100010001000100010001000100010001000 00100100 11000000 11010000 01100000 00000000000000000000000000000000 10110001 | |
| 1000100010001000100010001000100010001000 00100100 11000000 11010000 01000000 00000000000000000000000000000000 10010001 | |
| Block 2 Bit 1 is Hold. -> 0 no hold, 1 Hold | |
| Block 2 Bit 6 is On/off. | |
| Block 3 Bit 1 & 2 encodes Cool/dry/heat | |
| -> 11 = Cool | |
| -> 01 = Dry | |
| -> 10 = Heat | |
| Block 4 Bit 1-4 encodes the Temperature as Big Endian substracted from 31 | |
| -> 22°: 1001 | |
| 1248 | |
| -> 1+0+0+8 = 9 | |
| -> 31 - 9 = 22 | |
| Block 5 Bit 2 & 3 encode the fan speed | |
| -> 10 = 3 | |
| -> 11 = 2 | |
| -> 01 = 1 | |
| Block 5 Bit 4 is swing on/off |
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