I'm working on a project that includes other components that run on 5V. Can I supply 5V to the Arduino Feather 32u4?
The normal input requires 3.3V, but the USB input handles 5V, and converts it down to 3.3V.
As I understand it, the VBUS exposes the USB power pin? Can I maybe connect 5V to VBUS + GND, and the Arduino will then handle the rest?
From the Adafruit manual:
"The Feather is not designed for external power supplies - this is a design decision to
make the board compact and low cost. It is not recommended, but technically
possible:
[...]
Connect an external 5V power supply to the USB and GND pins. Not
recommended, this may cause unexpected behavior when plugging in the USB
port because you will be back-powering the USB port, which could confuse or
damage your computer
Thank you. That's very helpful. 
So it's possible, just not recommended. The project will be enclosed within a box, so I think it will be safe, but I guess the best option would be to power it through a micro usb like this one.
Or just hack a cable and bring out the red and black wires.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.
