ABSTRACT
With the improvement of the quality of family life, the market needs intelligent refrigerator. The development of single-chip microcomputer just caters to this demand. This design will use single-chip microcomputer to control the temperature of refrigerator.
In the paper, the temperature control system of refrigerator based on MCU is designed mainly by the temperature sensor DS18B20 and STC89C51 MCU, so as to achieve the purpose of simulating the temperature of the refrigerator.
This design can realize refrigerator temperature setting and display by LCD1602, 7SEG-MPX4-CC display refrigerator temperature, fast freezing, open over 3min alarm and so on. This paper introduces the design of the device and program used in detail.
The feasibility of the design is verified by Proteus software simulation and physical simulation.