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Advanced users • Re: Power RPi 4B through header so I can use USB-C as OTG MIDI device

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If you have nothing else plugged into the Pi 4 it will consume around 600mA when idle, and perhaps 1.2A when stressed. Your PC USB port can probably provide that, in which case you'll be fine to just plug the Pi 4 directly into the USB port.

If you have any additional hardware attached to the Pi then the additional current needs to be accounted for. If it's only a few mA or tens of mA it's probably not a worry.
Thank you for that answer, but I have a project in mind where it would be necessary to separate the power and the OTG. I will then probably not use the USB-C socket anyway, so is it then OK to power the Pi4 on the pins and connct USB2-cables (2 data pins + gnd) to the USBC connector?

Statistics: Posted by scippie — Sun Dec 24, 2023 11:30 pm



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