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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. Hector Martin‏ @marcan42 14 Apr 2020
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      I was going to write a @home_assistant integration for my aircon. Then I found that project, and figured maybe I didn't have to. Still going to do it.

      1 reply 1 retweet 14 likes
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    3. Hector Martin‏ @marcan42 14 Apr 2020
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      I just... don't understand how multiple people contributing to a project end up (manually!) capturing thousands of IR codes from remotes to make this work and don't stop and think that there might be a better way.

      3 replies 0 retweets 26 likes
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    4. Andrea Rossetto‏ @brusarp 14 Apr 2020
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      Replying to @marcan42

      I'm interested ... is it possible in simple words to explain how it could be done? Isn't it necessary to try the keys one by one anyway?

      1 reply 0 retweets 1 like
    5. Hector Martin‏ @marcan42 14 Apr 2020
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      Replying to @brusarp

      Aircon remotes don't send keycodes, they have a screen and keep track of the current settings on the remote, then transfer the entire state to the aircon. The right way to do this is to reverse engineer the packet format and figure out where mode, temp, fan speed, etc go.

      2 replies 0 retweets 6 likes
    6. Hector Martin‏ @marcan42 14 Apr 2020
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      Replying to @marcan42 @brusarp

      These people are literally spending hours with each remote trying every possible speed setting times every possible temperature times every possible mode (and missing out on any additional features because some have so many combinations it would take weeks to capture them all).

      2 replies 0 retweets 3 likes
    7. Andrea Rossetto‏ @brusarp 14 Apr 2020
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      Replying to @marcan42

      Right ... I read something somewhere ... As there are millions (billions?) of combinations they preferred to choose the most common commands ...

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 14 Apr 2020
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      Replying to @brusarp

      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)

      11:52 PM - 14 Apr 2020
      1 reply 0 retweets 0 likes
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        1. Hector Martin‏ @marcan42 14 Apr 2020
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          Replying to @marcan42 @brusarp

          I forgot about fan direction auto/stop, multiply that by 2.

          1 reply 0 retweets 0 likes
        2. Andrea Rossetto‏ @brusarp 15 Apr 2020
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          Replying to @marcan42

          Ohh... Mine has also: Vane (vertical scroll), Wide vane (horizontal scroll), Plasma, Clean, Area... see this image...pic.twitter.com/YF6JdKljWu

          1 reply 0 retweets 0 likes
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