Design of Temperature Detection System Based on AT89S52 Single Chip

Based on the requirement of temperature acquisition system currently,a simple and easy temperature detection system is designed by adopting AT89S52single-chip microcomputer as the system control core,sensor DS18B20as a simple temperature detectible bus digital temperature acquisition.Temperature is displayed in LED digital pipe,which is set through pushing buttons to achieve overrun alarm function.This paper describes the system hardware design and software design flow.Joint debugged between the software and hardware,the system has temperature detection and alarm ranging from-55to 125degrees Celsius,low power consumption,with a wide range of practical value.