import machine
import utime

sensor_pir = machine.Pin(28,machine.Pin.IN)
led = machine.Pin(15, machine.Pin.OUT)
buzzer = machine.Pin(14, machine.Pin.OUT)
led.toggle()
def pir_handler(pin):
    print("ALARM! Motion detected!")
    for i in range (50):
        led. toggle()
        buzzer.toggle()
        utime.sleep_ms(200)   
sensor_pir.irq(trigger=machine.Pin.IRQ_RISING,handler=pir_handler)
while True:
    led.toggle()
    utime.sleep(5)