from gpiozero import MotionSensor, LED, Buzzer
from signal import pause
import time

# Setup
pir = MotionSensor(17)  # PIR sensor connected to GPIO 17
buzzer = Buzzer(19)      # Buzzer connected to GPIO 19
red_led = LED(20)        # Red LED connected to GPIO 20
green_led = LED(21)      # Green LED connected to GPIO 21

def alarm():
    red_led.on()          # Turn on red LED
    buzzer.on()          # Activate buzzer
    print("Motion detected! Alarm activated!")

def reset_alarm():
    red_led.off()         # Turn off red LED
    buzzer.off()          # Deactivate buzzer
    green_led.on()        # Turn on green LED when reset
    print("Alarm reset.")

# Attach motion detection event handlers
pir.when_motion = alarm
pir.when_no_motion = reset_alarm

# Keep the program running
try:
    pause()
except KeyboardInterrupt:
    reset_alarm()