from machine import Pin

boton_pull_down = Pin(25, Pin.IN, Pin.PULL_DOWN)
led= Pin(2, Pin.OUT)

while True:
    if boton_pull_down.value() == 1:
        print('LED encendido para pull-down')
        led.on()
    else:
        print('LED apagado para pull-down')
        led.off()