from machine import Pin, Timer

pir=Pin(13,Pin.OUT)
led=Pin(26,Pin.OUT)

def pir_get(tim):
    print(pir.value())

tim=Timer(0)
tim.init(period=500,mode=Timer.PERIODIC,callback=pir_get)
 
while True:
    if pir.value()==1:
      led.value(1)
    if pir.value()==0:
      led.value(0)