Temperature and humidity in the living environment have a significant impact on people's quality of life. According to medical study, 22°C is the ideal temperature for human health. At 60% relative humidity, whether the temperature is too high or the humidity is incorrect, individuals will feel uncomfortable. The temperature and humidity sensor included into the smart house can continuously check the temperature and humidity inside, and the controller will decide whether to turn on the air conditioner, humidifier, etc. to control the temperature and humidity.