from machine import Pin, PWM, ADC
import time 

pot = ADC(27)
servo = PWM (Pin(28))
servo.freq(50)

def set_angle(valor):
    #convertir 0-65535 a 0-180°
    angle = (valor / 65535) * 180
    duty = int(1638 + (angle / 180) * 65535)
    servo.duty_u16(duty)

while True:
    valor = pot.read_u16()
    set_angle(valor)

    time.sleep(0.05)