You could reverse engineer a proprietary protocol. Or I guess you could just manually capture the cartesian product of all possible field values, and make a giant lookup table. Times multiple proprietary target encoding formats. Times dozens of devices.https://github.com/smartHomeHub/SmartIR/blob/master/codes/climate/1023.json …
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Right ... I read something somewhere ... As there are millions (billions?) of combinations they preferred to choose the most common commands ...
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Depends on the aircon, but if you include all the features of the one I have in front of me, that's 5 modes × 4 fan speeds × 13 temperatures × 3 submodes × 11 sleep timer settings × ~144 on timer countdowns = 1235520 possible packets, give or take (some are not valid)
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For reference, here is a quick emulator I wrote for my old aircon remote: https://mrcn.st/p/jUaSBl4E It really isn't hard to work out the fields. You change the temp, see what changes; change the mode, see what changes; etc. Often you can get more modes than the remote supports.
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I've been doing a little reverse engineering lcm.. what's your approach to bytes that you can't decipher and don't seem to change, treat them as magic numbers?
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