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  1. Home
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  3. Flame Sensor Not Triggering Setup

Flame Sensor Not Triggering Setup

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  • TheoLT TheoL

    @OldSurferDude Sounds like a power issue to me. What radio are you using. NRF or RFM?

    Check your capacitor, maybe it's old?

    OldSurferDudeO Offline
    OldSurferDudeO Offline
    OldSurferDude
    wrote last edited by
    #8

    @TheoL

    I'm using the nRF24L01. It's sounds like you're implying that the radio is doing a lot of retries. I don't think that's the case.

    The sensor sends to the gateway. The gateway sends to the MQTT broker. Home Assistant (HA) has subscribed to the broker, but HA takes a while (I've seen as much as 3 seconds) before it acts on the data. If I'm not mistaken, an ACK follows the route back. Presentation data takes a lot longer than regular data.

    When I have a serial gateway, I set the time to wait to a half second and 1 second for presentation.

    To confound even more, I have HA running in a virtual box.

    Different controllers may react faster (or slower?)

    Yes, the delay is annoy, but I find it reliable.

    That said, I will give serious consideration to providing the radio with good quality power. My RPi zero 2w gateway uses a rock solid 12V 20A power supply followed by a 5A buck converter. My sensors, though, use a really cheap 700mA wall wart or a really cheap 80-277VAC to 5VDC 700mA buck converter.

    Perhaps I should add a bypass capacitor to the existing electrolytic capacitor that is already on the radio.

    My understanding is that if the rating of an electrolytic capacitor is double or more the expected voltage, it will last a very long time. (eg. my computer is at least 15 years old and is still running well...if Microsoft would stop giving it updates it would be working great.)

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    • TheoLT Offline
      TheoLT Offline
      TheoL
      Contest Winner
      wrote last edited by
      #9

      You mean you have no 100uf capacitor between the ground and vcc of the nrf radio? Because you really need it.

      I still wanna experiment with replacing the 100uf with 0.1 uf 1 uf and 10 uf in parallel. They use that in analog synth PSU's to guarentee a smooth power.

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      • OldSurferDudeO Offline
        OldSurferDudeO Offline
        OldSurferDude
        wrote last edited by
        #10

        I have a 10µF capacitor soldered onto the board of the nRF24.

        TheoLT 1 Reply Last reply
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        • OldSurferDudeO OldSurferDude

          I have a 10µF capacitor soldered onto the board of the nRF24.

          TheoLT Offline
          TheoLT Offline
          TheoL
          Contest Winner
          wrote last edited by
          #11

          @OldSurferDude Swap them with 100uf. That improves communication a lot. You might even be able to get rid of the delays

          I just hate delays in code.

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          • OldSurferDudeO Offline
            OldSurferDudeO Offline
            OldSurferDude
            wrote last edited by OldSurferDude
            #12

            I will consider it for future designs. For now, "if it ain't broke, don't fix it."

            (I, too, hate delays)

            TheoLT 1 Reply Last reply
            1
            • OldSurferDudeO OldSurferDude

              I will consider it for future designs. For now, "if it ain't broke, don't fix it."

              (I, too, hate delays)

              TheoLT Offline
              TheoLT Offline
              TheoL
              Contest Winner
              wrote last edited by
              #13

              @OldSurferDude I believe we started with 4.7 Uf, then it was 10Uf and eventually it become 100uf.

              Although I still wanna try if0.1 1 and 10 uf in parallel will work better. I believe EEVLOG gave an explanation why that is the best. But I forgot

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              • skywatchS Offline
                skywatchS Offline
                skywatch
                wrote last edited by
                #14

                FWIW I am using 47uF * ceramic smd caps but always use delay to allow the data and power line to stablilse between sends.

                *I like being different!

                S 1 Reply Last reply
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                • skywatchS skywatch

                  FWIW I am using 47uF * ceramic smd caps but always use delay to allow the data and power line to stablilse between sends.

                  *I like being different!

                  S Offline
                  S Offline
                  sindrome73
                  wrote last edited by
                  #15

                  @skywatch If I may, how do you introduce a delay between one broadcast and another?

                  skywatchS 1 Reply Last reply
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                  • TheoLT Offline
                    TheoLT Offline
                    TheoL
                    Contest Winner
                    wrote last edited by
                    #16

                    I use a message queue, I implemented a long time ago. But all of this shouldn't be needed, as there's a retry built into the MySensors Core.
                    I do it to give other Nodes the time to send as well. Because sometimes the traffic is really bursty

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                    • S Offline
                      S Offline
                      sindrome73
                      wrote last edited by
                      #17

                      ok grazie

                      1 Reply Last reply
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                      • S sindrome73

                        @skywatch If I may, how do you introduce a delay between one broadcast and another?

                        skywatchS Offline
                        skywatchS Offline
                        skywatch
                        wrote last edited by
                        #18

                        @sindrome73 From a recent upgraded node I do it like this....

                        if (dustAverage > 20.0 && dustAverage < 500.0) {
                        send(msgDust.set(dustAverage, 2));
                        wait(200);
                        }
                        send(msgQuality.set(dustStrings[x]));
                        wait(200);
                        send(msgTemp.set(temperature, 2));
                        lasttemperature = temperature;
                        wait(200);
                        send(msgHum.set(humidity, 2));
                        wait(200);
                        send(msgVOC.set(VOC, 2));
                        wait(200);
                        send(msgNOX.set(NOX, 2));
                        }

                        Hope this is clear!

                        Ciao.

                        TheoLT OldSurferDudeO 2 Replies Last reply
                        0
                        • skywatchS skywatch

                          @sindrome73 From a recent upgraded node I do it like this....

                          if (dustAverage > 20.0 && dustAverage < 500.0) {
                          send(msgDust.set(dustAverage, 2));
                          wait(200);
                          }
                          send(msgQuality.set(dustStrings[x]));
                          wait(200);
                          send(msgTemp.set(temperature, 2));
                          lasttemperature = temperature;
                          wait(200);
                          send(msgHum.set(humidity, 2));
                          wait(200);
                          send(msgVOC.set(VOC, 2));
                          wait(200);
                          send(msgNOX.set(NOX, 2));
                          }

                          Hope this is clear!

                          Ciao.

                          TheoLT Offline
                          TheoLT Offline
                          TheoL
                          Contest Winner
                          wrote last edited by TheoL
                          #19

                          @skywatch When I have time I will give you a library. I like code the best when there's no wait or delay in it.

                          Giving a library means I have to take it out of my code and make it decent xd

                          skywatchS 1 Reply Last reply
                          0
                          • TheoLT TheoL

                            @skywatch When I have time I will give you a library. I like code the best when there's no wait or delay in it.

                            Giving a library means I have to take it out of my code and make it decent xd

                            skywatchS Offline
                            skywatchS Offline
                            skywatch
                            wrote last edited by
                            #20

                            @TheoL That is kind of you, but no rush. I have not been building for a while now due to circumstances outside my control.

                            Maybe you could think of putting it on this site to help others too? Just a thought.

                            I will be interested to see what you have done and how it is working. :)

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                            • skywatchS skywatch

                              @sindrome73 From a recent upgraded node I do it like this....

                              if (dustAverage > 20.0 && dustAverage < 500.0) {
                              send(msgDust.set(dustAverage, 2));
                              wait(200);
                              }
                              send(msgQuality.set(dustStrings[x]));
                              wait(200);
                              send(msgTemp.set(temperature, 2));
                              lasttemperature = temperature;
                              wait(200);
                              send(msgHum.set(humidity, 2));
                              wait(200);
                              send(msgVOC.set(VOC, 2));
                              wait(200);
                              send(msgNOX.set(NOX, 2));
                              }

                              Hope this is clear!

                              Ciao.

                              OldSurferDudeO Offline
                              OldSurferDudeO Offline
                              OldSurferDude
                              wrote last edited by
                              #21

                              @skywatch @sindrome73 This is what I do, too.

                              Note that it is wait(), which is a MySensors function and not delay(), an Arduino function. wait() checks for MySensors messages, delay() halts all process, thus a message might be missed.

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