from machine import Pin
from time import sleep

pulsante = Pin(16, Pin.IN)
led = Pin(22, Pin.OUT)

while True:
    if pulsante.value() == 1:
        led.value(1)
        print("LED acceso")
    else:
        for i in range(3):
            led.value(0)
            sleep(0.2)
            led.value(1)
        led.value(0)
    sleep(2) #per evitare rimbalzi