前言.............................................................................................................................................21 总体方案设计.......................................................................................................................31.1 方案论证....................................................................................................................41.1.1 传感器.............................................................................................................41.1.2 主控部分.........................................................................................................42 硬件电路的设计...................................................................................................................52.1 电源电路....................................................................................................................52.2 温度采集电路............................................................................................................62.2.1 DS18B20 简介..................................................................................................62.2.2 电路设计.........................................................................................................82.2.3 无线传输电路模块.........................................................................................93 无线发送与接收电路...........................................................................................................93.1 无线发送电路............................................................................................................93.2 无线接收模块..........................................................................................................104 显示电路.............................................................................................................................114.1 字符型液晶显示模块..............................................................
