from machine import Pin, PWM, ADC
from time import ticks_ms, ticks_add, ticks_diff, sleep

DT = const(500)
led = PWM(Pin(6), freq=1000)
pot = ADC(Pin(26))
tLe = ticks_ms()

while True:
    if ticks_diff(ticks_ms(), tLe) >= DT:
        v = pot.read_u16()
        print(f"Valor: {v}, V:{3.3*v/65535}")
        led.duty_u16(v)
        tLe = ticks_add(ticks_ms(), DT)
    sleep(0.2)