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  1. Home
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  3. st:fail sometimes and sometimes OK

st:fail sometimes and sometimes OK

Scheduled Pinned Locked Moved Troubleshooting
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  • sundberg84S Offline
    sundberg84S Offline
    sundberg84
    Hardware Contributor
    wrote on last edited by
    #21

    Sorry m8. My thought was that depending how you run power and ground in your ciriut it can disturb the radio. For example i had a 5v arduino with a 5v relay and if i didn run the ground through the arduino but instead direct to ground the radio got to many spikes and i got really much st:fails.

    Controller: Proxmox VM - Home Assistant
    MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
    MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
    RFLink GW - Arduino Mega + RFLink Shield, 433mhz

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    • sundberg84S sundberg84

      Sorry m8. My thought was that depending how you run power and ground in your ciriut it can disturb the radio. For example i had a 5v arduino with a 5v relay and if i didn run the ground through the arduino but instead direct to ground the radio got to many spikes and i got really much st:fails.

      F Offline
      F Offline
      flopp
      wrote on last edited by
      #22

      @sundberg84

      no worries, I done it my self my times.

      Right now I think the problem was a loose cap or bad/small cap. Before I used a 4.7uF, no I have one 100uF on each NRF.

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      • sundberg84S Offline
        sundberg84S Offline
        sundberg84
        Hardware Contributor
        wrote on last edited by
        #23

        Yea, thats kind of interesting... i have 25+ nodes and everyone except the gateway runs on 4.7 only and it works great... but if that works for you im glad!

        Controller: Proxmox VM - Home Assistant
        MySensors GW: Arduino Uno - W5100 Ethernet, Gw Shield Nrf24l01+ 2,4Ghz
        MySensors GW: Arduino Uno - Gw Shield RFM69, 433mhz
        RFLink GW - Arduino Mega + RFLink Shield, 433mhz

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        • rvendrameR rvendrame

          Once I had similar problems, a 4.7nF cap and gw.wait(100) after each transmit did the trick for me... Hope it helps somehow.

          M Offline
          M Offline
          Marcell Kovacs
          wrote on last edited by
          #24

          @rvendrame said:

          Once I had similar problems, a 4.7nF cap and gw.wait(100) after each transmit did the trick for me... Hope it helps somehow.

          I also got to this solution when experienced the same 'st:fail' issue. The arduino's delay wont help, because it wont receive anything from radio during the delay.

          As i got mutch less or no error with ack = false, I thing its linked to receiving some ACK packets. I have no deeper information or debugging possibilities at the moment.

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