#! /usr/bin/python3

import RPi.GPIO as GPIO
from time import sleep

__PIN__ = 18

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(__PIN__,GPIO.OUT)

while True:

  GPIO.output(__PIN__,GPIO.HIGH)
  print('LED ein')

  sleep(0.5)

  GPIO.output(__PIN__,GPIO.LOW)
  print('LED aus')