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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    MMM-PIR-Senor shut off usb port(s)

    Scheduled Pinned Locked Moved Development
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    • S Offline
      shgmongohh
      last edited by

      Hello,

      I think it would be nice, if the usb port is shut down, when the monitor turns of. I have some speakers on my MM via usb and they make some noise. When it is still in the night you can hear it.
      It it possible to cut of the energy supply to one or two usb ports?

      Sebastian

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      • J Offline
        jc21
        last edited by

        From the quick googling I’ve done, it may be possible to disable/enable raspberry pi usb power with commands:

        Disable

        echo 0x0 > /sys/devices/platform/bcm2708_usb/buspower
        

        Enable

        echo 0x1 > /sys/devices/platform/bcm2708_usb/buspower
        

        However I haven’t tested. I’d recommend writing a new module that handles this and listens for the USER_PRESENCE event notification that the Pir module triggers.

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