Hi, I have a project where an MKR1000 is hooked up to a Drone's flight controller. The flight controller provides regulated 5V power to the MKR1000 via the VIN pin which works great.
I am wondering if there would be any problem plugging in USB without disconnecting the VIN pin?
There are two cases, one with the flight controller providing 5v to VIN (ie: battery connected) and the other being with no battery connected to the flight controller, so no voltage at VIN but the pin is connected to the 5v out of the flight controller, which is shut down.
I'm just wondering if the power circuitry on the MKR1000 would leak any current from the USB side into the output of the Flight Controller's regulator, possibly damaging it.
I think the answer is probably "no problem" but thought it would be worth checking.