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  3. AC IR code decrypting

AC IR code decrypting

Scheduled Pinned Locked Moved Development
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  • Nca78N Nca78

    @dpressle
    I add it because it is the initial value of the checksum when temperature is 16°C = 0000
    I just wanted to show than an increase of 1 in temperature was producing an increase of 1 in checksum.

    I think your minus sign (= 19ms pause ?) is in wrong position as it is supposed to be after the 6 (and not 8 ) first words ?

    Please take some values by changing the horizontal and vertical swing so we can try to change the second part of the message. After that try some other functions if you have (anything like "eco"/"quiet"/"turbo" options for example) and also if you have it the timer.

    dpressleD Offline
    dpressleD Offline
    dpressle
    wrote on last edited by
    #23

    @Nca78 OK, i will generate more commands and see if it makes more sense, Thanks for your help.

    1 Reply Last reply
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    • P pjr

      Gree is the most largest manufacturer of AC devices and Tadiran outdoor unit looks quite a lot like Gree.. at least I'd try that first.

      e: Oh. Looks like Carrier also has some relation with Tadiran.

      T Offline
      T Offline
      ToniA
      wrote on last edited by
      #24

      @dpressle said:

      @ToniA can you elaborate?

      Yes, on my AC IR decoder sketch I have decoder modules for different heatpumps. Like this:

      https://github.com/ToniA/Raw-IR-decoder-for-Arduino/blob/master/MitsubishiElectric.cpp

      So, write a new one, and add a call to it into https://github.com/ToniA/Raw-IR-decoder-for-Arduino/blob/master/rawirdecode.ino#L315. First you need to write a condition to recognize the protocol (like, from the first bytes + length etc). Then just start adding functionality, like decoding the temperature, then operating mode etc.

      dpressleD 1 Reply Last reply
      0
      • T ToniA

        @dpressle said:

        @ToniA can you elaborate?

        Yes, on my AC IR decoder sketch I have decoder modules for different heatpumps. Like this:

        https://github.com/ToniA/Raw-IR-decoder-for-Arduino/blob/master/MitsubishiElectric.cpp

        So, write a new one, and add a call to it into https://github.com/ToniA/Raw-IR-decoder-for-Arduino/blob/master/rawirdecode.ino#L315. First you need to write a condition to recognize the protocol (like, from the first bytes + length etc). Then just start adding functionality, like decoding the temperature, then operating mode etc.

        dpressleD Offline
        dpressleD Offline
        dpressle
        wrote on last edited by
        #25

        @ToniA i got you, but the problem is i still dont know the checksum value, working on it...

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        • Nca78N Offline
          Nca78N Offline
          Nca78
          Hardware Contributor
          wrote on last edited by
          #26

          @dpressle could you please also post a picture of the back of your remote control ? I would like to confirm it's the one I quoted above, would be very interesting as it seems this RC/protocol is shared with a loooot of brands and models.
          It's a very interesting case for this reason but also because it's using a checksum based on 4 bits words and excluding some of the "data" bits (at least the fan speed), it's the first time I see this.

          dpressleD 1 Reply Last reply
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          • Nca78N Nca78

            @dpressle could you please also post a picture of the back of your remote control ? I would like to confirm it's the one I quoted above, would be very interesting as it seems this RC/protocol is shared with a loooot of brands and models.
            It's a very interesting case for this reason but also because it's using a checksum based on 4 bits words and excluding some of the "data" bits (at least the fan speed), it's the first time I see this.

            dpressleD Offline
            dpressleD Offline
            dpressle
            wrote on last edited by
            #27

            @Nca78 yes it is YB1FA

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            • ? Offline
              ? Offline
              A Former User
              wrote on last edited by
              #28

              In case you are still interested, here is the full description of this code:

              0_1469565492669_Gree.pdf

              Nca78N dpressleD 2 Replies Last reply
              1
              • ? A Former User

                In case you are still interested, here is the full description of this code:

                0_1469565492669_Gree.pdf

                Nca78N Offline
                Nca78N Offline
                Nca78
                Hardware Contributor
                wrote on last edited by
                #29

                @joker_mkd That's a fraction of a VERY interesting document you have posted here
                I suppose the other 180 pages are not freely available ? :D

                ? 1 Reply Last reply
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                • ? A Former User

                  In case you are still interested, here is the full description of this code:

                  0_1469565492669_Gree.pdf

                  dpressleD Offline
                  dpressleD Offline
                  dpressle
                  wrote on last edited by
                  #30

                  @joker_mkd said:

                  In case you are still interested, here is the full description of this code:

                  0_1469565492669_Gree.pdf

                  Thanks, this is great looks like exactly what i need, all the relevant information is there.
                  I will now write some code to implement this.

                  Thanks.

                  1 Reply Last reply
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                  • Nca78N Nca78

                    @joker_mkd That's a fraction of a VERY interesting document you have posted here
                    I suppose the other 180 pages are not freely available ? :D

                    ? Offline
                    ? Offline
                    A Former User
                    wrote on last edited by
                    #31

                    @Nca78 Unfortunately not. This is a part of the document which we use to define IR codes for our product called PebbleAIR . These codes are implemented in the Android and iOS app. It took me a lot of time, money and effort to decode all the different brands and remotes. I often browse the forums and if I see that someone is stuck or in a need, I share remote data from time to time. If you desperately need data for a certain brand od model feel free to PM me, and I might help you.

                    Nca78N dpressleD 2 Replies Last reply
                    0
                    • ? A Former User

                      @Nca78 Unfortunately not. This is a part of the document which we use to define IR codes for our product called PebbleAIR . These codes are implemented in the Android and iOS app. It took me a lot of time, money and effort to decode all the different brands and remotes. I often browse the forums and if I see that someone is stuck or in a need, I share remote data from time to time. If you desperately need data for a certain brand od model feel free to PM me, and I might help you.

                      Nca78N Offline
                      Nca78N Offline
                      Nca78
                      Hardware Contributor
                      wrote on last edited by
                      #32

                      @joker_mkd I understand, it's very nice from you to share these pages already !
                      You have a nice product, I love the flashing function I will have to try that just for the fun of it :)

                      1 Reply Last reply
                      0
                      • ? A Former User

                        @Nca78 Unfortunately not. This is a part of the document which we use to define IR codes for our product called PebbleAIR . These codes are implemented in the Android and iOS app. It took me a lot of time, money and effort to decode all the different brands and remotes. I often browse the forums and if I see that someone is stuck or in a need, I share remote data from time to time. If you desperately need data for a certain brand od model feel free to PM me, and I might help you.

                        dpressleD Offline
                        dpressleD Offline
                        dpressle
                        wrote on last edited by dpressle
                        #33

                        @joker_mkd product looks great, did you ever thought of making these units smaller (so can be attached on an AC for example) and have some kind of API exposed so any Home Automation can use them? MySensors ZWave Wifi http etc...

                        ? 1 Reply Last reply
                        0
                        • dpressleD dpressle

                          @joker_mkd product looks great, did you ever thought of making these units smaller (so can be attached on an AC for example) and have some kind of API exposed so any Home Automation can use them? MySensors ZWave Wifi http etc...

                          ? Offline
                          ? Offline
                          A Former User
                          wrote on last edited by
                          #34

                          @dpressle We are in the process of making an API, because several companies have asked us for this. I was not involved in the process of hardware design, and I agree that the unit could have been made smaller, probably in the next revision.

                          dpressleD 1 Reply Last reply
                          0
                          • ? A Former User

                            @dpressle We are in the process of making an API, because several companies have asked us for this. I was not involved in the process of hardware design, and I agree that the unit could have been made smaller, probably in the next revision.

                            dpressleD Offline
                            dpressleD Offline
                            dpressle
                            wrote on last edited by
                            #35

                            @joker_mkd Sounds wonderful, good luck, i will be watching you :wink:

                            1 Reply Last reply
                            0
                            • T Offline
                              T Offline
                              ToniA
                              wrote on last edited by
                              #36

                              This is what I have done as a hobby so far: https://www.openhardware.io/view/41/Heatpump-airconditioner-controller

                              There's no Gree support in the HeatpumpIR library, though.

                              dpressleD 1 Reply Last reply
                              0
                              • T ToniA

                                This is what I have done as a hobby so far: https://www.openhardware.io/view/41/Heatpump-airconditioner-controller

                                There's no Gree support in the HeatpumpIR library, though.

                                dpressleD Offline
                                dpressleD Offline
                                dpressle
                                wrote on last edited by
                                #37

                                @ToniA i know, i will try to add it to your library (if no one will beat me to it)

                                Nca78N 1 Reply Last reply
                                0
                                • dpressleD dpressle

                                  @ToniA i know, i will try to add it to your library (if no one will beat me to it)

                                  Nca78N Offline
                                  Nca78N Offline
                                  Nca78
                                  Hardware Contributor
                                  wrote on last edited by
                                  #38

                                  @dpressle said:

                                  @ToniA i know, i will try to add it to your library (if no one will beat me to it)

                                  Not me :p
                                  I'll implement it in my own library if I manage to make something valuable.

                                  dpressleD 1 Reply Last reply
                                  0
                                  • Nca78N Nca78

                                    @dpressle said:

                                    @ToniA i know, i will try to add it to your library (if no one will beat me to it)

                                    Not me :p
                                    I'll implement it in my own library if I manage to make something valuable.

                                    dpressleD Offline
                                    dpressleD Offline
                                    dpressle
                                    wrote on last edited by
                                    #39

                                    @Nca78 said:

                                    @dpressle said:

                                    @ToniA i know, i will try to add it to your library (if no one will beat me to it)

                                    Not me :p
                                    I'll implement it in my own library if I manage to make something valuable.

                                    Let me know if you get it done please!

                                    1 Reply Last reply
                                    0
                                    • frishrashF Offline
                                      frishrashF Offline
                                      frishrash
                                      wrote on last edited by
                                      #40

                                      Hi all,
                                      This post is great. I started writing a similar library myself for Electra AC, I might just add it on top of @ToniA's library.

                                      Quick question: can anyone recommend MySensors compatible controller that supports temperature/fan commands ?
                                      The only thing I came across so far is this modification for Vera UI7 thermostat: https://forum.mysensors.org/topic/3606/redesigned-vera-ui7-thermostat-with-heat-cool-setpoint-hvac-state-fan-status-energy-mode

                                      Thanks!

                                      1 Reply Last reply
                                      0
                                      • dpressleD Offline
                                        dpressleD Offline
                                        dpressle
                                        wrote on last edited by
                                        #41

                                        So i ended up implementing it in my own library, still under tests, i will publish it here once i push it to github.

                                        1 Reply Last reply
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                                        • dpressleD Offline
                                          dpressleD Offline
                                          dpressle
                                          wrote on last edited by
                                          #42

                                          Hi All,

                                          Library can be found here:
                                          GitHub

                                          It contains a test ino to test the library and a ino to work with mysensors.
                                          If you have any comments and or questions please dont hesitate to ask/comment.

                                          Thanks to all of you who helped in this topic and especially to @joker_mkd who donated his gree code document.

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