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  3. Cannot get RFM69HW connection between ESP8266GW and Pro Mini Sensor

Cannot get RFM69HW connection between ESP8266GW and Pro Mini Sensor

Scheduled Pinned Locked Moved Troubleshooting
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  • E elcaron

    Ok, I have finally identified the issue.

    I did some more testing with the switched roles, ESP8266 as (light) sensor, Pro Mini as serial gateway, hardcoded MY_NODE_ID. According to the logs, the ESP sends the parent quest, the Pro Mini answers, but never gets an ACK. The ESP does not report any answer. Ergo, the interrupt doesn't work.
    So I scoped it, electrically, everything was fine. I tried D2 instead of D1, no change. Then I remembered that the default in the code was GPIO2, which is D4. This is a really stupid choice, because if you connect it like that, the ESP will not boot. GPIO2 needs to be pulled up during boot, and DIO0 from the RFM69 pulls it down. What works though is to first boot, then connect the cable.
    Lo and behold - everything suddenly worked. So either I am the idiot and #define MY_RFM69_IRQ_PIN D1 is not how you set the interrupt, or whoever thought that it was clever to default the interrupt to a pin that prevents booting also decided to ignore the configured value ...

    I'll dig into the code to find out, but of course wouldn't mind if anybody who knows the code better would be faster :)
    Will file an issue or pull request if I find something.

    mfalkviddM Offline
    mfalkviddM Offline
    mfalkvidd
    Mod
    wrote on last edited by mfalkvidd
    #22

    @elcaron could it be that you set
    #define MY_RF69_IRQ_PIN D1
    but did not set
    #define MY_RF69_IRQ_NUM
    ?

    Edit: I see now that you posted that you have tracked it down to the IRQ_NUM parameter. Sorry.

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    • E Offline
      E Offline
      elcaron
      wrote on last edited by elcaron
      #23

      @elcaron said in Cannot get RFM69HW connection between ESP8266GW and Pro Mini Sensor:

      MY_RFM69_IRQ_PIN

      So both MUST be defined? I thought NUM was prety much an override, since it can be programmatically derived from the pin. Undfortunaely, it does not seem to be documented.

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      • E Offline
        E Offline
        elcaron
        wrote on last edited by
        #24

        Ok, I see ...

        #define DEFAULT_RFM69_IRQ_NUM                   digitalPinToInterrupt(DEFAULT_RFM69_IRQ_PIN)
        

        So it indeed has to be set separately. I don' really see why this isn't set to

        #define DEFAULT_RFM69_IRQ_NUM                   digitalPinToInterrupt(MY_RFM69_IRQ_PIN)
        

        MyConfig.h is included before, so tha should work.

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        • mfalkviddM Offline
          mfalkviddM Offline
          mfalkvidd
          Mod
          wrote on last edited by
          #25

          I don't know why the code is written the way it is. When I verified the rfm69 wiring and wrote the instructions, I decided to not use the default IRQ pin, since it would interfere with boot (as you also have identified). That's why I added the define instructions to set both MY_RF69_IRQ_PIN and MY_RF69_IRQ_NUM.

          I am not familiar with the rfm69 driver code, but I think what you suggest should work. You are very welcome to create a pull request. If someone has any objections, they can always make their case during the code review.

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          • E Offline
            E Offline
            elcaron
            wrote on last edited by
            #26

            I have already created an issue, but you are right, I could do a pull request.

            AnticimexA 1 Reply Last reply
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            • E elcaron

              I have already created an issue, but you are right, I could do a pull request.

              AnticimexA Offline
              AnticimexA Offline
              Anticimex
              Contest Winner
              wrote on last edited by
              #27

              @elcaron just add a #fixes tag to your pull request commit message and reference your issue so they get chained.

              Do you feel secure today? No? Start requiring some signatures and feel better tomorrow ;)

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              • E Offline
                E Offline
                elcaron
                wrote on last edited by
                #28

                @mfalkvidd said in Cannot get RFM69HW connection between ESP8266GW and Pro Mini Sensor:

                When I verified the rfm69 wiring and wrote the instructions, I decided to not use the default IRQ pin

                Maybe note this in the instructions? This cost me 1 year (in which I did not touch the stuff after i didn't work immediately) and a weekend of checking wireing and so on (because with a missing IRQ on the gateway, it looks like nothing is working, while the issue is quite easy to find on a node).

                Ok, PR is filed, I also fixed it for the RFM95, which had the same issue.

                mfalkviddM 1 Reply Last reply
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                • E elcaron

                  @mfalkvidd said in Cannot get RFM69HW connection between ESP8266GW and Pro Mini Sensor:

                  When I verified the rfm69 wiring and wrote the instructions, I decided to not use the default IRQ pin

                  Maybe note this in the instructions? This cost me 1 year (in which I did not touch the stuff after i didn't work immediately) and a weekend of checking wireing and so on (because with a missing IRQ on the gateway, it looks like nothing is working, while the issue is quite easy to find on a node).

                  Ok, PR is filed, I also fixed it for the RFM95, which had the same issue.

                  mfalkviddM Offline
                  mfalkviddM Offline
                  mfalkvidd
                  Mod
                  wrote on last edited by
                  #29

                  @elcaron could you describe the type of note you think you would have noticed?

                  Great work on the PR.

                  E 1 Reply Last reply
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                  • mfalkviddM mfalkvidd

                    @elcaron could you describe the type of note you think you would have noticed?

                    Great work on the PR.

                    E Offline
                    E Offline
                    elcaron
                    wrote on last edited by elcaron
                    #30

                    @mfalkvidd Maybe a "* Different from code default and examples"?
                    You do not really expect that you have to change defaults when you get a wiring guide from the official site associated with the code, especially when running an example that is explicitly for the platform (the ESP8266 gateway sketch).

                    In hindsight, this was probably stupid, but I didn't even look at the defines below the table, because I thought I was running a working example specifically for the ESP8266 and only needed to find the right pins.

                    mfalkviddM 1 Reply Last reply
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                    • E elcaron

                      @mfalkvidd Maybe a "* Different from code default and examples"?
                      You do not really expect that you have to change defaults when you get a wiring guide from the official site associated with the code, especially when running an example that is explicitly for the platform (the ESP8266 gateway sketch).

                      In hindsight, this was probably stupid, but I didn't even look at the defines below the table, because I thought I was running a working example specifically for the ESP8266 and only needed to find the right pins.

                      mfalkviddM Offline
                      mfalkviddM Offline
                      mfalkvidd
                      Mod
                      wrote on last edited by
                      #31

                      @elcaron so we've determined that a note below the table wouldn't work (since you didn't read it). Where would we place the note so you would have noticed it?

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                      • E Offline
                        E Offline
                        elcaron
                        wrote on last edited by elcaron
                        #32

                        As a * that resolves to above mentioned note directly in the table:
                        D1* | DIO0 | Gray
                        ...
                        Below: * Different from code default and examples

                        As I said, one doesn't necessarily expect that defaults have to changed an ESP-specific example sketch.

                        mfalkviddM 1 Reply Last reply
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                        • E elcaron

                          As a * that resolves to above mentioned note directly in the table:
                          D1* | DIO0 | Gray
                          ...
                          Below: * Different from code default and examples

                          As I said, one doesn't necessarily expect that defaults have to changed an ESP-specific example sketch.

                          mfalkviddM Offline
                          mfalkviddM Offline
                          mfalkvidd
                          Mod
                          wrote on last edited by
                          #33

                          @elcaron thanks. I have updated connecting the radio.

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                          • mfalkviddM Offline
                            mfalkviddM Offline
                            mfalkvidd
                            Mod
                            wrote on last edited by
                            #34

                            Adding references to github:
                            https://github.com/mysensors/MySensors/issues/1075
                            https://github.com/mysensors/MySensors/pull/1076

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                            • E Offline
                              E Offline
                              elcaron
                              wrote on last edited by
                              #35

                              Ok, my setup is running now (including personalization, encryption, and soft signing) and stuff is published to mqtt.
                              Thanks everyone for the help! I really like this community.

                              Now I need to resolve the issue with the OpenHAB binding but that's no topic for here.

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