Created
May 26, 2021 06:46
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Samsung AC decoding attempt
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| ZEROBIT_ON = 550 | |
| ZEROBIT_OFF = 450 | |
| ONEBIT_ON = 550 | |
| ONEBIT_OFF = 1450 | |
| BREAK_ON = 3100 | |
| BREAK_OFF = 8900 | |
| Break sequence: 550 3100 3100 8900 | |
| BREAK | |
| 00000010 | |
| 10110010 | |
| ^^^^ Checksum - number of all 0 bits in this set (except this byte), modulo 15. If modulo equals 0, then set checksum to 15 | |
| 00001111 | |
| 00000000 | |
| 00000000 | |
| 00000000 | |
| 11000000 | |
| ^^^^ 1111=on, 1100=off | |
| # 0x0292 0F00 0000 F0 - fixed for on | |
| BREAK | |
| BREAK | |
| 00000001 | |
| 11010010 | |
| ^^^^ Checksum - number of all 0 bits in this set (except this byte), modulo 15. If modulo equals 0, then set checksum to 15 | |
| 00001111 | |
| ^^^^ Off timer (0000=off, 0011=0.5h, 1000=1h, 1011=1.5h, 0000=2h, 0011=2.5h, 1000=3h) | |
| LSB (bit 0) for hours | |
| 00000000 | |
| ^^^ Off timer, MSB (continued with above) . E.g. 0001 here and 1011 above means 3.5h | |
| Bits 1,2,3 for hours - off timer | |
| ^^^^ Bit 0 for hours, bits 011 for 1/2h - on timer. E.g. 1011 here means 1.5h on timer | |
| 00000000 | |
| ^^^ Bits 1,2,3 for hours - on timer | |
| 00000000 | |
| ^ Bit 4 for off timer hours . | |
| ^ Bit 5 for off timer hours | |
| ^ Bit 4 for on timer hours | |
| ^ Bit 5 for on timer hours | |
| 00000000 | |
| # 0x 01D2 0F00 0000 00 - fixed for on | |
| BREAK | |
| BREAK | |
| 00000001 | |
| 11010010 | |
| ^^^^ Checksum - number of all 0 bits in all sets (except this byte and byte #2 - checksum for first byte), modulo 15. If modulo equals 0, then set checksum to 15 | |
| 11111110 | |
| 01110001 | |
| 11100000 | |
| ^^^^ Temperature (0000 = 16deg, 1110 = 14+16 = 30deg) | |
| 00001101 | |
| ^^^^ Mode (0000=auto, 0001=cool, 0010=dry, 0011=fan, 0100=heat) | |
| ^^^1 Fan (000=auto, 010=fan1, 100=fan2, 101=fan3, 111=fan4) | |
| 11000000 | |
| 15h off | |
| 00000001 = 01 | |
| 10000010 = 82 | |
| 10001111 = 8F | |
| 00000111 = 07 | |
| 00000000 = 00 | |
| 00000100 = 04 | |
| 00000000 = 00 | |
| 16h off | |
| 00000001 = 01 | |
| 10110010 = B2 | |
| 00001111 = 0F | |
| 00001000 = 08 | |
| 00000000 = 00 | |
| 00000100 = 04 | |
| 00000000 = 00 | |
| 24h off | |
| 00000001 = 01 | |
| 10110010 = B2 | |
| 00001111 = 0F | |
| 00000000 = 00 | |
| 00000000 = 00 | |
| 00010100 = 14 | |
| 00000000 = 00 | |
| 1.5h on | |
| BREAK | |
| 00000001 = 01 | |
| 10010010 = 92 | |
| 00001111 = 0F | |
| 10110000 = B0 | |
| 00000000 = 00 | |
| 00000010 = 02 | |
| 00000000 = 00 | |
| 3h on | |
| 00000001 = 01 | |
| 10100010 = A2 | |
| 00001111 = 0F | |
| 10000000 = 80 | |
| 00000001 = 01 | |
| 00000010 = 02 | |
| 00000000 = 00 | |
| 15h on | |
| 00000001 = 01 | |
| 10000010 = 82 | |
| 00001111 = 0F | |
| 10000000 = 80 | |
| 00000111 = 07 | |
| 00000010 = 02 | |
| 00000000 = 00 | |
| 16h on | |
| 00000001 = 01 | |
| 10110010 = B2 | |
| 00001111 = 0F | |
| 00000000 = 00 | |
| 00001000 = 08 | |
| 00000010 = 02 | |
| 00000000 = 00 | |
| 24h on | |
| 00000001 = 01 | |
| 10110010 = B2 | |
| 00001111 = 0F | |
| 00000000 = 00 | |
| 00000000 = 00 | |
| 00010010 = 12 | |
| 00000000 = 00 | |
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