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  3. Multiple messages to same node, seems to miss one.

Multiple messages to same node, seems to miss one.

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  • YveauxY Yveaux

    @crankycoder You didn't describe your hardware, but if it's based on nRF24 the issue could be that this radio has a 3 level deep queue for incoming messages. If more than 3 messages come in faster than the node can handle, the last message(s) will get lost.
    You can counter this by either sending the messages with more time inbetween or turn on message buffering by defining MY_RX_MESSAGE_BUFFER_FEATURE (make sure the nRF24 IRQ pin is connected!)
    There's some discussion on the topic here: https://www.mysensors.org/build/serial_gateway

    CrankyCoderC Offline
    CrankyCoderC Offline
    CrankyCoder
    wrote on last edited by
    #7

    @yveaux is this something that could be a problem at the repeater and the node itself? I don't think it's the gateway as the messages aren't coming in, it's being delivered to the node.

    Home Automation Tinkerer
    www.CrankyCoder.net

    Controller: HomeAssistant in Kubernetes
    Gateway: MQTTClientGateway
    MySensors: 2.3

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    • electrikE electrik

      @mfalkvidd That is good to hear. What should I do to have that enabled?

      mfalkviddM Offline
      mfalkviddM Offline
      mfalkvidd
      Mod
      wrote on last edited by mfalkvidd
      #8

      @electrik It should have been sufficient to follow the documentation, but it seems like MY_RX_MESSAGE_BUFFER_FEATURE is only available for atmega328 (or perhaps also for SAMD and Linux/Raspberry Pi but definitely not for esp8266).

      I have created an issue to clarify the documentation.

      Thanks to @Yveaux for notifying me.

      electrikE 1 Reply Last reply
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      • mfalkviddM mfalkvidd

        @electrik It should have been sufficient to follow the documentation, but it seems like MY_RX_MESSAGE_BUFFER_FEATURE is only available for atmega328 (or perhaps also for SAMD and Linux/Raspberry Pi but definitely not for esp8266).

        I have created an issue to clarify the documentation.

        Thanks to @Yveaux for notifying me.

        electrikE Offline
        electrikE Offline
        electrik
        wrote on last edited by
        #9

        @mfalkvidd all right thanks. Is there an alternative to avoid losing messages on an ESP8266 MQTT gateway?

        YveauxY 1 Reply Last reply
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        • electrikE electrik

          @mfalkvidd all right thanks. Is there an alternative to avoid losing messages on an ESP8266 MQTT gateway?

          YveauxY Offline
          YveauxY Offline
          Yveaux
          Mod
          wrote on last edited by
          #10

          @electrik decrease the message rate or the number of messages sent in bursts

          http://yveaux.blogspot.nl

          electrikE 1 Reply Last reply
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          • YveauxY Yveaux

            @electrik decrease the message rate or the number of messages sent in bursts

            electrikE Offline
            electrikE Offline
            electrik
            wrote on last edited by electrik
            #11

            @yveaux What is a rate that is still expected to be possible? Or, how often is the buffer from the NRF emptied?

            YveauxY 1 Reply Last reply
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            • electrikE electrik

              @yveaux What is a rate that is still expected to be possible? Or, how often is the buffer from the NRF emptied?

              YveauxY Offline
              YveauxY Offline
              Yveaux
              Mod
              wrote on last edited by
              #12

              @electrik that's a tough one... Every time loop() executes, or if you call eg wait() the queue is emptied.
              So it all depends on what you do in your sketch.

              http://yveaux.blogspot.nl

              electrikE 1 Reply Last reply
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              • YveauxY Yveaux

                @electrik that's a tough one... Every time loop() executes, or if you call eg wait() the queue is emptied.
                So it all depends on what you do in your sketch.

                electrikE Offline
                electrikE Offline
                electrik
                wrote on last edited by
                #13

                @yveaux so by calling wait () a couple of times in the loop, it will be processed more often. I will try that, thanks

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                • electrikE Offline
                  electrikE Offline
                  electrik
                  wrote on last edited by
                  #14

                  @Yveaux do you know if there are plans to support this buffering on the ESP8266 or the ESP32? Is it all related to SoftSPI?

                  YveauxY 1 Reply Last reply
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                  • electrikE electrik

                    @Yveaux do you know if there are plans to support this buffering on the ESP8266 or the ESP32? Is it all related to SoftSPI?

                    YveauxY Offline
                    YveauxY Offline
                    Yveaux
                    Mod
                    wrote on last edited by
                    #15

                    @electrik the problem is the arduino port, not the mySensors stack. Last time I checked the issue on GitHub was still unresolved...

                    http://yveaux.blogspot.nl

                    YveauxY 1 Reply Last reply
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                    • YveauxY Yveaux

                      @electrik the problem is the arduino port, not the mySensors stack. Last time I checked the issue on GitHub was still unresolved...

                      YveauxY Offline
                      YveauxY Offline
                      Yveaux
                      Mod
                      wrote on last edited by
                      #16

                      @yveaux This seems to be the original issue, which is closed: https://github.com/esp8266/Arduino/issues/1943
                      That sounds hopeful, but no time to check it right now...

                      http://yveaux.blogspot.nl

                      electrikE 1 Reply Last reply
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                      • YveauxY Yveaux

                        @yveaux This seems to be the original issue, which is closed: https://github.com/esp8266/Arduino/issues/1943
                        That sounds hopeful, but no time to check it right now...

                        electrikE Offline
                        electrikE Offline
                        electrik
                        wrote on last edited by
                        #17

                        @yveaux Did you find some time already to have a look at this? :-)

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