基于1-Wire技术的数字温度仪

Digital temperature instrument based on 1-Wire

设计了一种基于单总线技术的温度测量仪器。介绍了单总线原理、DS18B20的工作时序和该温度测量仪器的测温原理。给出了硬件设计框图,并在软件编写部分给出了延时函数的设计。实验结果表明,该测温仪器具有操作简单直观、精度高、工作稳定可靠等特点。

A temperature instrument based on 1-Wire bus technique was designed. 1-Wire bus principle, DS18B20 working time order and measure principle of the temperature instrument were introduced. Hardware design diagram and the time delay function of software program were put forward. The experiment shows that, the temperature instrument has easy operation, high resolution, stability, reliability, and so on.