MagicMirror² v2.14.0 is available! For more information about this release, check out this topic.

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

  • 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?


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


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


    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.

Log in to reply