基于MSP430单片机和DS18B20的小型测温系统

介绍了超低功耗16 位单片机MSP430F1121 和数字温度传感器DS18B20 的基本特性，结合4 位段型液晶显示模块LCM046 和升压型DC-DC 变换器MAX1674，设计了一个小型测温系统。并基于集成开发环境IAR Workbench 给出了主要的C430函数。利用MSP430 单片机的超低功耗以及DS18B20 的单线接口方式，实现了整个系统的低功耗，结构简单，性能稳定，经济实用。
关键词：测温系统; MSP430F1121; DS18B20; C430; MCU

A Mini-Temperature Detecting System Based On The MSP430 Microcontroller And DS18B20
LI Hong[1], WENG Xiu-Mei[1], GAO Zhen-tian[2] ([1]Hebei Institute of Architectural and Civil Engineering,[2]The college of Information Science and engineering, YanShan University)
Abstract: The characteristic of the ultra-low power microcontroller MSP430F1121 and the digital temperature sensor DS18B20 is introduced. A mini-temperature detecting system is designed combining the 4 bits segmented LCD module LCM046 and the DC-DC converter MAX1674. Some primary C430 functions are presented in the IAR Workbench IDE. Using the ultra-low power of the MSP430 microcontroller and the 1-WARE interface mode of the DS18B20, the ultra-low power、simple structure、stable performance and practicality
of the whole system is realized.
Key words: temperature detecting system; MSP430F1121; DS18B20; C430; MCU