2

Assuming that the Raspberry Pi 4 is attached as a slave to emulate different devices/gadgets using the USB OTG functionality available on the USB-C port: Is it possible to power the Raspberry from another power source at the same time?

Put differently: Is it possible to attach one USB/non-USB device (like a power bank or battery) which powers the Raspberry while another USB device is acting as the USB host (like a smartphone or PC)?

Improve this question

1 Answer 1

Reset to default
3

Yes, it is possible to power the Raspberry Pi from another power source at the same time. You can use a POE (Power Over Ethernet) hat or power it by the +5V and GND GPIO pins. The latter has the disadvantage that it isn't protected against overload. Or you can try to do it yourself an Y-cable How to make a splitter cable for the USB2 OTG port on the RPi 4B?.

Improve this answer
1
  • I'd say YOU HAVE TO power it,I tried directly on my computer, the pi does'nt even boot up
    – Phil
    Commented May 21, 2020 at 16:38

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.