from machine import Pin
import time

# Define the pins
pir_sensor = Pin(15, Pin.IN)  # PIR motion sensor output
buzzer = Pin(16, Pin.OUT)      # Buzzer or LED

def ring_bell():
    # Activate the buzzer or LED
    buzzer.value(1)  # Turn on
    time.sleep(1)    # Ring for 1 second
    buzzer.value(0)  # Turn off

try:
    print("Waiting for motion...")
    while True:
        if pir_sensor.value() == 1:  # Motion detected
            print("Motion detected! Ringing the bell...")
            ring_bell()
            time.sleep(2)  # Prevents multiple triggers too quickly
        time.sleep(0.1)  # Small delay to avoid high CPU usage
except KeyboardInterrupt:
    print("Program stopped by user.")