单片机课程设计报告

姓 名：学 号：班 级：学 院：机电学院指导老师：

单片机课程设计报告

基于单片机的数字温度计设计

摘 要：本文介绍一种基于AT89S51单片机的一种温度测量电路,该电路采用DS18B20作为

温度监测元件，测量范围0℃～99℃，使用2位LED模块显示。正文着重给出了软硬件系统的各部分电路，介绍了集成温度传感器DS18B20的原理，AT89S51单片机功能和应用。该电路设计新颖、功能强大、结构简单。

关键词：温度测量 DS18B20 AT89S52

1

单片机课程设计报告

目 录

1前言······························································3 2方案设计··························································3 3 系统的硬件设计····················································4 3.1 主控制器·····················································4 3.2 显示电路······················································5 3.3 温度传感器工作原理············································6 3.4 温度传感器接口电路············································9 4 系统的软件设计····················································9 4.1 主流程图······················································9 4.2 主程序·······················································10 5 总结·····························································16 参考文献···························································17

2