The design of an automatic control system for temperature, humidity, and illumination detection

An automatic control system with temperature, humidity and illumination detection is introduced. The system compares the values with the range of temperature, humidity and illumination set by us through buttons. If the temperature, humidity, and illumination in the surrounding environment are not within the range we set, a buzzer will sound, and the relay will activate temperature and humidity control devices such as a small fan for dehumidification and cooling, a water pump for dehumidification, a heating element for heating, or an LED light to increase illumination until the temperature, humidity, and illumination return to the specified range. At the same time, the microcontroller will connect to the Bluetooth module and the phone to send the detected temperature, humidity, and illumination to the phone.