import time
import board
import digitalio

switch = digitalio.DigitalInOut(board.GP17)
switch.direction = digitalio.Direction.INPUT
switch.pull = digitalio.Pull.DOWN

poorten = [board.GP18, board.GP19, board.GP20, board.GP21]
leds = [digitalio.DigitalInOut(poort) for poort in poorten]

for led in leds:
    led.direction = digitalio.Direction.OUTPUT

knopIngedrukt = False
teller = 0
tijdStart = 0

while True:
    while switch.value == True:
        knopIngedrukt = True
        time.sleep(0.2)
        print("knop ingedrukt")
        if tijdStart == 0:
            tijdStart = time.monotonic()

    if switch.value == False and knopIngedrukt == True:
        teller +=1
        knopIngedrukt = False
    
    if tijdStart != 0 and time.monotonic() - tijdStart >= 2:
        print("aantal keer knop ingedruk:", teller)
        for x in range(min(teller, len(leds))):
            leds[x].value = True
            time.sleep(0.5)
            leds[x].value = False
            time.sleep(0.5)
    
        teller = 0
        tijdStart = 0