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  1. Home
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  3. NRF24 problem

NRF24 problem

Scheduled Pinned Locked Moved Bug Reports
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  • gohanG Offline
    gohanG Offline
    gohan
    Mod
    wrote on last edited by
    #5

    IRQ of the nrf24 is not used on the nodes but can be used on the raspberry gateway

    R 1 Reply Last reply
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    • gohanG gohan

      IRQ of the nrf24 is not used on the nodes but can be used on the raspberry gateway

      R Offline
      R Offline
      raulandresmoch
      wrote on last edited by
      #6

      @gohan Could that be the problem?!?! I will try it when I get home, but on my first sensor im pretty sure I used the IRQ. Thank you for your time and help.

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      • gohanG Offline
        gohanG Offline
        gohan
        Mod
        wrote on last edited by
        #7

        I don't think it will matter... you could also try the latest mysensors 2.2, I am happy with it so far

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        • gohanG gohan

          I don't think it will matter... you could also try the latest mysensors 2.2, I am happy with it so far

          R Offline
          R Offline
          raulandresmoch
          wrote on last edited by
          #8

          @gohan But if I use the 2.2 I have to update the other nodes and the gateway?? Im worried to mess the ones that are working.

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          • gohanG gohan

            I don't think it will matter... you could also try the latest mysensors 2.2, I am happy with it so far

            R Offline
            R Offline
            raulandresmoch
            wrote on last edited by
            #9

            @gohan So I builded another Hum/Temp node, I did it on a protoboard and uploaded the sketch, It worked fine, then I took out the LED and the Regulator from the Promini and power it with 4AA batteries (5.5 V total) STOPED working again!!!! Could I have burn it with that Voltage!??? Or burn the NRF24?!?! This is getting really frustrating, maybe if I use a Nano instead of Promini.................

            mfalkviddM 1 Reply Last reply
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            • R raulandresmoch

              @gohan So I builded another Hum/Temp node, I did it on a protoboard and uploaded the sketch, It worked fine, then I took out the LED and the Regulator from the Promini and power it with 4AA batteries (5.5 V total) STOPED working again!!!! Could I have burn it with that Voltage!??? Or burn the NRF24?!?! This is getting really frustrating, maybe if I use a Nano instead of Promini.................

              mfalkviddM Offline
              mfalkviddM Offline
              mfalkvidd
              Mod
              wrote on last edited by
              #10

              @raulandresmoch do you mean that you powered the nrf24 with 5.5V?

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              • mfalkviddM mfalkvidd

                @raulandresmoch do you mean that you powered the nrf24 with 5.5V?

                R Offline
                R Offline
                raulandresmoch
                wrote on last edited by
                #11

                @mfalkvidd Nope I powered the whole system, but I think that without any regulator yes, the NRF24 recived 5.5v, I think I blew it !!!

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                • gohanG Offline
                  gohanG Offline
                  gohan
                  Mod
                  wrote on last edited by
                  #12

                  Yup, nrf24 is 5v tolerant only on data pins.

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                  • mfalkviddM Offline
                    mfalkviddM Offline
                    mfalkvidd
                    Mod
                    wrote on last edited by
                    #13

                    According to the nrf24 datasheet, absolute maximum power voltage is 3.6V

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                    • mfalkviddM mfalkvidd

                      According to the nrf24 datasheet, absolute maximum power voltage is 3.6V

                      R Offline
                      R Offline
                      raulandresmoch
                      wrote on last edited by
                      #14

                      @mfalkvidd YEEEESSS definitely that was the problem!!!! Well .......... "Living and learning" I blew two Nrf24 antenas!!!

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                      • mfalkviddM mfalkvidd

                        According to the nrf24 datasheet, absolute maximum power voltage is 3.6V

                        R Offline
                        R Offline
                        raulandresmoch
                        wrote on last edited by
                        #15

                        @mfalkvidd So I just got home and power another NRF24 with the 3.5 volt coming from the USB-STC-ISP and its working, I need to figure out how to power the Arduino with only 3.5v from a 6v power source (4 AA batteries). Can you guys help me with some ideas to do it?! I thought in doing it with 2 resistors but Im not sure, I dont want to burn another NRF24

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                        • gohanG Offline
                          gohanG Offline
                          gohan
                          Mod
                          wrote on last edited by
                          #16

                          Just use 2 of the 4 batteries you have, solder a wire extra on the battery holder and you have 3v. If I were you I'd buy some 3.3v pro mini and some LiFePo4 AA batteries that have the correct voltage for everything.

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