
did i create a pico frying machine?
I plugged in the usb power and a 18v battery via a buck converter (18v - 3.3v). It was working fine before, but randomly after plugging it in, it stop working. something is fried as it gets really hot with power and obviously, doesn't turn on. every other peripheral runs on the pico's 3v out or gpio. should I have not plugged them in at the same time, usb and vsys?