import serial
import RPi.GPIO as GPIO
import time

# Set up GPIO
LED_PIN = 17
GPIO.setmode(GPIO.BCM)
GPIO.setup(LED_PIN, GPIO.OUT)

# Open serial connection to HC-05
bt = serial.Serial('/dev/serial0', baudrate=9600, timeout=1)
print("Bluetooth HC-05 is ready. Waiting for data...")

try:
    while True:
        data = bt.readline().decode().strip()
        if data:
            print(f"Received: {data}")
            if data.lower() == "on":
                GPIO.output(LED_PIN, GPIO.HIGH)
            elif data.lower() == "off":
                GPIO.output(LED_PIN, GPIO.LOW)
except KeyboardInterrupt:
    print("Program stopped")

finally:
    bt.close()
    GPIO.cleanup()