clean up

sensor.py

@@ -21,7 +21,7 @@
 def on_motion_detected(channel):
     print("Motion Detected!")
     client.publish(MQTT_TOPIC, "Motion Detected")
-    
+
 # Add event detection on the PIR pin
 GPIO.add_event_detect(PIR_PIN, GPIO.RISING, callback=on_motion_detected)
 
@@ -30,4 +30,10 @@ def on_motion_detected(channel):
     time.sleep(2)  # to stabilize sensor
     print("Ready")
 
+   # Keep the script running
+    while True:
+        time.sleep(1)
 
+except KeyboardInterrupt:
+    print("Quit")
+    GPIO.cleanup()