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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 14 Apr 2020
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      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 …

      2 replies 8 retweets 58 likes
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    2. Ridley @ a safe distance‏ @11rcombs 15 Apr 2020
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      Replying to @marcan42

      …I can _see_ the patterns just looking at the damn base64

      2 replies 0 retweets 5 likes
    3. Hector Martin‏ @marcan42 15 Apr 2020
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      Replying to @11rcombs

      Actually a lot of the changes are probably noise, because the base64 encodes learned *analog* pulse widths. The Broadlink packet format is known, but nobody bothered to make a generic pulse train API to at least unify IR blasters yet. That's my step 1.

      1 reply 0 retweets 4 likes
    4. Ridley @ a safe distance‏ @11rcombs 15 Apr 2020
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      Replying to @marcan42

      yeah, noticed with a tiny bit of poking that some bits were consistent across samples and some looked like noise

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 15 Apr 2020
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      Replying to @11rcombs

      Once you convert it to a list of pulse widths they're all going to be a trivial format like "0 = short pulse long gap, 1 = long pulse short gap", and after you take out that layer the actual packet encoding will be trivial.

      2:09 AM - 15 Apr 2020
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      • Sam Bingner Fabian De Valle Ridley @ a safe distance
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