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  1. Home
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  3. NRF24 problem

NRF24 problem

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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
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    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

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        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

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          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.................

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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?

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              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

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                    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

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                      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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