#--------------------------------------------------
# Für sleep() das Modul time importieren
import time

# Für Pin das Modul machine importieren
import machine

#--------------------------------------------------
# setup
led_pins = [machine.Pin(x, machine.Pin.OUT) for x in (13, 12, 14, 27, 26, 25, 33, 32)]

#--------------------------------------------------
# loop
while True:
    for led in led_pins:
        # LED[] einschalten für 500 ms
        led.on()
        time.sleep(0.5)

        # LED[] ausschalten
        led.off()