from machine import Pin, PWM
from utime import sleep
led = Pin(17, Pin.OUT)
pir1 = Pin(34, Pin.IN)
def tone(buzzer, freq):
    beep = PWM(Pin(buzzer), freq=freq, duty=512)
    led.on()
    sleep(1)
    beep.deinit()
    led.off()



while True:
    if pir1.value():
        print('ALARM!!!!')
        
        tone(26, 440)
        
        
        
        
        sleep(0.5)