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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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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A priori yes (e.g. 0x40, 0xff, 0xcc in that script), they are often going to be a device/maker code (effectively a magic number). Or if you feel adventurous you can try changing them and see if it does anything discernible.
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however ... I have a Mitsubishi air conditioner and I have solved it in another way https://github.com/gysmo38/mitsubishi2MQTT … ;-)
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That's nice, especially if you can get feedback via that. With IR I'm flying blind...
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