The 5V pin is connected directly to the USB power, AFAIK. On the Uno there is a polyfuse.
Just cut the 5V line on the USB cable, maybe cut an extender cable and mark it as such?
The 5V pin is connected directly to the USB power, AFAIK. On the Uno there is a polyfuse.
Just cut the 5V line on the USB cable, maybe cut an extender cable and mark it as such?