import time from grove.grove_light_sensor_v1_2 import GroveLightSensor from grove.grove_led import GroveLed import paho.mqtt.client as mqtt light_sensor = GroveLightSensor(0) led = GroveLed(5) id = '' client_name = id + 'nightlight_client' mqtt_client = mqtt.Client(client_name) mqtt_client.connect('test.mosquitto.org') mqtt_client.loop_start() print("MQTT connected!") while True: light = light_sensor.light print('Light level:', light) if light < 300: led.on() else: led.off() time.sleep(1)