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  1. Home
  2. Troubleshooting
  3. double/triple receiving of data?

double/triple receiving of data?

Scheduled Pinned Locked Moved Troubleshooting
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  • M Offline
    M Offline
    Matt
    wrote on last edited by Matt
    #1

    As below. Any idea why? I have a repeater but with the star topology this shouldnt happen?
    0_1472007984790_ss.jpg

    mfalkviddM 1 Reply Last reply
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    • M Matt

      As below. Any idea why? I have a repeater but with the star topology this shouldnt happen?
      0_1472007984790_ss.jpg

      mfalkviddM Offline
      mfalkviddM Offline
      mfalkvidd
      Mod
      wrote on last edited by
      #2

      @Matt which transport are you using? Nrf24l01+ has automatic re-send if the node doesn't get hardware ack from the next node. So it could be that the messages are re-sent because the ack is lost.

      M 1 Reply Last reply
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      • mfalkviddM mfalkvidd

        @Matt which transport are you using? Nrf24l01+ has automatic re-send if the node doesn't get hardware ack from the next node. So it could be that the messages are re-sent because the ack is lost.

        M Offline
        M Offline
        Matt
        wrote on last edited by
        #3

        @mfalkvidd ah yep Im using NRF24L01+...
        Wonder why ACK is getting lost...Maybe I need to foil the GW LNA/PA.... Just scared of shorts...

        tekkaT TheoLT 2 Replies Last reply
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        • M Matt

          @mfalkvidd ah yep Im using NRF24L01+...
          Wonder why ACK is getting lost...Maybe I need to foil the GW LNA/PA.... Just scared of shorts...

          tekkaT Offline
          tekkaT Offline
          tekka
          Admin
          wrote on last edited by
          #4

          @Matt Sounds like a power-issue - try replacing your power-supply and/or add larger caps to the radios

          1 Reply Last reply
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          • M Matt

            @mfalkvidd ah yep Im using NRF24L01+...
            Wonder why ACK is getting lost...Maybe I need to foil the GW LNA/PA.... Just scared of shorts...

            TheoLT Online
            TheoLT Online
            TheoL
            Contest Winner
            wrote on last edited by
            #5

            @Matt Not sure if you do this. But in my experience, you need to add small delays (wait(15)) in your sketch after communication. Especially when creating large multi sensor nodes. The radio isn't always fast enough to digest all of the communication.

            Not sure if this is your problem, but it solved my problems.

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