Ah ok. So I could get interference trying to run both. I’m already doing it in a test board. I made a pigtail leads by cutting a usb cable. Run the power to a breadboard at 5V/3A then power the Uno and servos from there. No issue so far but only micro servos.
But this still means that I need to add some extra port into the case for the servo power. It seems I can’t use the existing ports and steal the power huh?
This has to be carried around under a costume so I’m trying to keep it compact. If I wanted to use the pigtails and only one power source, is there a circuit to split and isolate power between Uno and Servos?