I’m guessing the same power supply is used for all units, but if not, I’m specifically interested in the mod duo and the dwarf. Obviously the power supplies themselves are grounded (having a 3 conductor wall plug), but what about the 2 conductor cable going to the mod? Are one of those conductors at ground?
My reason for asking is I’m building an expression pedal powered by the mod’s usb that uses capacitive sensing. Capacitive sensing is much more stable when the microcontroller is grounded.
Thanks in advance