import board
import digitalio
import time

led = digitalio.DigitalInOut(board.GP0)
led.direction = digitalio.Direction.OUTPUT

ledgelb = digitalio.DigitalInOut(board.GP1)
ledgelb.direction = digitalio.Direction.OUTPUT

ledgrün = digitalio.DigitalInOut(board.GP2)
ledgrün.direction = digitalio.Direction.OUTPUT

taster = digitalio.DigitalInOut(board.GP28)
taster.direction = digitalio.Direction.INPUT
taster.pull = digitalio.Pull.DOWN

while True:
    x = 0 
    if taster.value:
       x = x+1
    if x == 1:
       led.value = True
       if x > 1:
       led.value = False