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A New Chapter for MagicMirror: The Community Takes the Lead
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what power supply for Raspberry Pi 4 B 2 go

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  • R Offline
    RIKKO14
    last edited by Jan 19, 2022, 1:59 PM

    I bought this model :
    Sans titre1.png
    I have changed the power supply several times and I often have this display at the top right
    Sans titre.png
    what power supply do you recommend ?

    S 1 Reply Last reply Jan 19, 2022, 2:26 PM Reply Quote 0
    • S Away
      sdetweil @RIKKO14
      last edited by Jan 19, 2022, 2:26 PM

      @rikko14 how many amps of +5 is that power supply?

      I bought a few w 5-8 amps, and don’t see that message

      note that USB attached devices come out of that power too. up to 1.2 amps (6watts)

      I have an external disc and camera, and occasionally mouse and keyboard

      Sam

      How to add modules

      learning how to use browser developers window for css changes

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      • R Offline
        RIKKO14
        last edited by Jan 20, 2022, 8:54 AM

        the original power supply was 3A which I changed because I had the message, I replaced it with several 5V 2A and sometimes I find the message. I haven’t had the message since last night…

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        • M Offline
          Mann
          last edited by Jan 20, 2022, 9:38 AM

          Does the PI 4 support turning USB power off and on in software at all? If it does, how to do it? Or is there a bug somewhere that has to be fixed to make it work? I use the newest Rapbian on both the Pi 3B+ and the Pi 4.

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          • R Offline
            RIKKO14
            last edited by Jan 20, 2022, 9:49 AM

            @mann “Does the PI 4 support turning USB power off and on in software at all? If it does, how to do it?” : I don’t understand what you are telling me, so what should I do?

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