The paper adopted the combination of software and hardware, on the basic of hardware, to compile each function module.
Main function is that the output of the temperature sensor is converted by A/D transformer, which is compared with the designated to temperature figure( inputed into the Micro Controller), then the result can be used to control the speed of breezing machine.
Exterior hardware circuit to complete gathering data and transforming it, quantifying, controlling the speed of the machine, you can compare the temperature, transport the signal by the software programming.In order to expand with the design adoption mold a logic for turning construction, making procedure designing relation that change, which makes hardware operate harmonically under the control of software.The temperatures of 8 rooms are adjusted by Micro Controller, maintainly around the setting temperature.
Keywords Micro Controller Unit,A/ D conversion,LED,temperture sensor.