Ok, understood. So if I power the Arduino (I'm probably going to go with a genuine Uno to avoid further issues) from the same 12v input as the picobucks, direct to its vin, should I then not connect the ground from the Arduino to the picobuck?
Ok, understood. So if I power the Arduino (I'm probably going to go with a genuine Uno to avoid further issues) from the same 12v input as the picobucks, direct to its vin, should I then not connect the ground from the Arduino to the picobuck?