A temperature control system is designed based on AT89C51 single-chip microcomputer (Abbreviation SCM, MCU) that is able to monitor computer room temperature and indicates, according to the temperature, when to turn on the cooling system. The low-cost system is simple to operate and control and can well ensure the environment for learning and teaching in the room. Also, it saves the electric energy that would otherwise be wasted if the cooling fan is constantly working. The system has certain use values.
