from machine import Pin, PWM, ADC
import utime 
pot=ADC (Pin(28))
servo1=PWM(Pin (15))
servo1.freq(50)
while 1:
    valor=int(1538+(pot.read_u16()/10))#65535/(8191-1638)
    print(valor)      #escala 0--65535 a 1638 -- 8191
    servo1.duty_u16(valor)
    utime.sleep(.3)