import time

from machine import Pin, ADC, PWM

frecuency = 1000

led = PWM(Pin(22),frecuency)

pot = ADC(Pin(34))

while True:
    val = pot.read() #lee valores entre 0 - 4095
    print(val)

    brightness=int(val/4) #que sean valores de 0 - 1023

    led.duty(brightness) #modificar la intensidad de luz del led

    time.sleep(0.1)