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  3. irq pin for nrf24l01

irq pin for nrf24l01

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  • rozpruwaczR Offline
    rozpruwaczR Offline
    rozpruwacz
    wrote on last edited by
    #2

    anybody hear me ? please help ! :)

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    • hekH Offline
      hekH Offline
      hek
      Admin
      wrote on last edited by
      #3

      If you use the MY_RX_MESSAGE_BUFFER_FEATURE, you must connect the IRQ pin. Otherwise it's not needed.

      I'll update the documentation.

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      0
      • rozpruwaczR Offline
        rozpruwaczR Offline
        rozpruwacz
        wrote on last edited by
        #4

        ok, thanks. What MY_RX_MESSAGE_BUFFER_FEATURE actually do ? what are the cons nad pros in the context of the repeater node ?

        YveauxY 1 Reply Last reply
        0
        • rozpruwaczR rozpruwacz

          ok, thanks. What MY_RX_MESSAGE_BUFFER_FEATURE actually do ? what are the cons nad pros in the context of the repeater node ?

          YveauxY Offline
          YveauxY Offline
          Yveaux
          Mod
          wrote on last edited by
          #5

          @rozpruwacz said in irq pin for nrf24l01:

          What MY_RX_MESSAGE_BUFFER_FEATURE actually do?

          The nrf24 radios can only buffer 3 incoming messages at most, if more come in they will be lost.
          For repeaters and gateway (basically non-sleeping sensors) this feature enables immediate retrieval of incoming messages and buffering in internal ram. For crowded networks, or sensors which send a lot of data at once, this feature reduces packet loss.
          Drawbacks are the increased use of ram (amount of messages buffered can be configured) and the nrf irq has to be connected.

          http://yveaux.blogspot.nl

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          • hekH Offline
            hekH Offline
            hek
            Admin
            wrote on last edited by
            #6

            Ok, updated doc. @Yveaux, feel free to update the text I wrote.

            rozpruwaczR 1 Reply Last reply
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            • rozpruwaczR Offline
              rozpruwaczR Offline
              rozpruwacz
              wrote on last edited by
              #7

              @Yveaux said in irq pin for nrf24l01:

              The nrf24 radios can only buffer 3 incoming messages at most, if more come in they will be lost.
              For repeaters and gateway (basically non-sleeping sensors) this feature enables immediate retrieval of incoming messages and buffering in internal ram. For crowded networks, or sensors which send a lot of data at once, this feature reduces packet loss.
              Drawbacks are the increased use of ram (amount of messages buffered can be configured) and the nrf irq has to be connected.

              thanks ! so i guess it is better to use that buffer in my repeater node.

              YveauxY 1 Reply Last reply
              0
              • hekH hek

                Ok, updated doc. @Yveaux, feel free to update the text I wrote.

                rozpruwaczR Offline
                rozpruwaczR Offline
                rozpruwacz
                wrote on last edited by
                #8

                @hek said in irq pin for nrf24l01:

                el free to update th

                "NRF24L01+ & ESP8266" section should be also updated ?

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                • rozpruwaczR rozpruwacz

                  @Yveaux said in irq pin for nrf24l01:

                  The nrf24 radios can only buffer 3 incoming messages at most, if more come in they will be lost.
                  For repeaters and gateway (basically non-sleeping sensors) this feature enables immediate retrieval of incoming messages and buffering in internal ram. For crowded networks, or sensors which send a lot of data at once, this feature reduces packet loss.
                  Drawbacks are the increased use of ram (amount of messages buffered can be configured) and the nrf irq has to be connected.

                  thanks ! so i guess it is better to use that buffer in my repeater node.

                  YveauxY Offline
                  YveauxY Offline
                  Yveaux
                  Mod
                  wrote on last edited by
                  #9

                  @rozpruwacz beware that it hasn't been tested extensively. I've using it on avr for a long time though.

                  http://yveaux.blogspot.nl

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                  • rozpruwaczR Offline
                    rozpruwaczR Offline
                    rozpruwacz
                    wrote on last edited by
                    #10

                    understand, but now i'm designing the device which hopefully will run for couple of years, so sooner or later this irq pin wiil be necessary.

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                    • Z Offline
                      Z Offline
                      zen85
                      wrote on last edited by
                      #11

                      so if i use an esp8266 as gateway AND i want to use the bufferfeature - to which pin do i have to actually connect the irq on the esp8266? The documentation is not helping me here.

                      YveauxY 1 Reply Last reply
                      0
                      • Z zen85

                        so if i use an esp8266 as gateway AND i want to use the bufferfeature - to which pin do i have to actually connect the irq on the esp8266? The documentation is not helping me here.

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

                        @zen85 said in irq pin for nrf24l01:

                        The documentation is not helping me here.

                        ESP8266 does not support message queuing, sorry.

                        http://yveaux.blogspot.nl

                        Z 1 Reply Last reply
                        1
                        • YveauxY Yveaux

                          @zen85 said in irq pin for nrf24l01:

                          The documentation is not helping me here.

                          ESP8266 does not support message queuing, sorry.

                          Z Offline
                          Z Offline
                          zen85
                          wrote on last edited by
                          #13

                          @yveaux

                          thx.

                          would this feature work on a esp32 gw then?

                          mfalkviddM 1 Reply Last reply
                          0
                          • Z zen85

                            @yveaux

                            thx.

                            would this feature work on a esp32 gw then?

                            mfalkviddM Offline
                            mfalkviddM Offline
                            mfalkvidd
                            Mod
                            wrote on last edited by
                            #14

                            @zen85 unfortunately not.

                            See https://www.mysensors.org/apidocs-beta/group__RF24SettingGrpPub.html#ga6b3dbadceeb1dfca62b2e920d926bd4a for details (MY_RX_MESSAGE_BUFFER_FEATURE section)

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