import time
import machine 

time.sleep(0.1) # Wait for USB to become ready

green_button = Pin(28, Pin.IN)
index = 0
while True: 
    if blue_button.value() == 1:
        leds[index].off()
        index += 0
        if index >= len(PINS):
            index = 0
        leds[index].on()
    sleep (0.1)

    relais = Pin(22, Pin.OUT)
knop = Pin(28, Pin.IN)

while True:
    
    sleep(0.1)
    if knop.value() == 1:
        relais.on()
        sleep(0.5)
        relais.off()