import board import digitalio import storage # For Gemma M0, Trinket M0, Metro M0/M4 Express, ItsyBitsy M0/M4 Express switch = digitalio.DigitalInOut(board.D2) # switch = digitalio.DigitalInOut(board.D5) # For Feather M0/M4 Express # switch = digitalio.DigitalInOut(board.D7) # For Circuit Playground Express switch.direction = digitalio.Direction.INPUT switch.pull = digitalio.Pull.UP # If the switch pin is connected to ground CircuitPython can write to the drive storage.remount("/", switch.value)