from machine import ADC, Pin, PWM
import time

# Anschluss Poti an GP27 und an Plus 3.3 Volt und Minus
poti = ADC(Pin(27))

# LED
gruen = PWM(Pin(18))
gelb = PWM(Pin(19)) 
rot = PWM(Pin(20))

# Variable mdelay = 0
gruen.freq(1000)
gelb.freq(1000)
rot.freq(1000)

reading = 0
    
while True:
    
    reading = poti.read_u16()
    print(reading)
    gruen.duty_u16(reading)
    gelb.duty_u16(reading)
    rot.duty_u16(reading)
    time.sleep(0.001)