# Bibliotheken laden
from machine import Pin
from time import sleep

# Initialisierung der Onboard-LED
led_onboard = Pin(25, Pin.OUT)
led_led = Pin(13, Pin.OUT)
buzzer_led = Pin(12, Pin.OUT)

# Wiederholung (Endlos-Schleife)
while True:
    led_onboard.on()
    led_led.on()
    buzzer_led.on()
    sleep(0.5)
    led_onboard.off()
    led_led.off()#
    buzzer_led.off()
    sleep(3)