import machine
import utime

sensor_pir = machine.Pin(28, machine.Pin.IN, machine.Pin.PULL_DOWN)
led = machine.Pin(15, machine.Pin.OUT)
buzzer = machine.Pin(14, machine.Pin.OUT)

def pir_handler(pin):
  print("ALARM! Frajer na rejonie")
  for i in range(50):
    led.toggle()
    buzzer.toggle()
    utime.sleep_ms(100)

sensor_pir.irq(trigger=machine.Pin.IRQ_RISING, handler=pir_handler)

while True:
  led.toggle()
  utime.sleep(0.25)