目 录1、引言..........................................................12、设计内容及方案................................................22.1 设计内容..................................................22.2 方案选择..................................................32.2.1 温湿度传感器的选择...................................32.2.2 显示器的选择.........................................33、系统的硬件选择及设计原理......................................43.1 温湿度传感器 SHT10.........................................43.1.1 接口定义.............................................43.1.2 电路特性.............................................53.1.3 传感器特点...........................................63.1.4 技术参数.............................................63.2 单片机选择与介绍..........................................73.2.1 主要性能.............................................73.2.2 AT89S52 介绍..........................................83.2.3 脚口介绍.............................................93.3 复位电路.................................................103.4 晶振电路.................................................113.5 显示电路.................................................123.6 报警电路.................................................133.7 键盘设定模块.............................................143.8 稳压电路.................................................144、软件设计.....................................................154.1 主程序模块...............................................164.2 SHT10 初始化流程..........................................164.3 LCD 初始模块..............................................175、调试.........................................................195.1 软件调试.................................................195.1.1 Proteus 软件........................................195.1.2 Keil C51 软件.......................................205.2 根据原理图焊接电路板.....................................235.3 硬件调试.........
