from machine import ADC, Pin
import utime
#objeto

led1= Pin(18, Pin.OUT)
led2= Pin(19, Pin.OUT)
led3= Pin(20, Pin.OUT)
led4= Pin(21, Pin.OUT)
adc = ADC(0)
while True:

    tiempo= 50 + int(adc.read_u16()/327)
    led1.value(1)
    led2.value(1)
    led3.value(1)
    led4.value(1)
    print(tiempo)
    utime.sleep_ms(tiempo)
    led1.value(0)
    led2.value(0)
    led3.value(0)
    led4.value(0)
    utime.sleep_ms(tiempo)