目 录
摘 要.........................................................................................................................................I
引言.........................................................................................................................................1
1 系统的主要内容和工作原理..............................................................................................1
1.1 系统的主要内容及要求............................................................................................1
1.2 系统工作原理............................................................................................................2
2 系统总体方案论证..............................................................................................................2
2.1 温度传感器................................................................................................................2
2.2 湿度传感器................................................................................................................2
2.3 AD 采集元器件..........................................................................................................2
2.4 显示器件....................................................................................................................3
2.5 无线收发模块............................................................................................................3
2.6 电机选择....................................................................................................................3
2.7 CPU 的选择................................................................................................................3
2.8 方案总结.....................................................................................................................4
3 系统硬件结构的设计..........................................................................................................5
3.1 温度采集电路的设计................................................................................................5
3.2 ADC0809....................................................................................................................6
3.3 相对湿度电路的设计................................................................................................7
3.3.1 相对湿度检测电路的原理及结构图...............................................................7
3.3.2 湿敏电阻传感器测量编程构思.......................................................................9
3.4 处理器模块的设计..................................................................................................10
3.5 液晶显示模块的设计..............................................................................................10
3.5.1 单片机与 1602 连接电路...............................................................................10
3.5.2 引脚功能说明.................................................................................................11
3.5.3 1602LCD 的指令说明及时序........................................................................11
3.6 无线收发模块...........................................................................................................12
3.7 串口通信...................................................................................................................14
3.8 下载口.......................................................................................................................15
3.9 红外接收头电路.......................................................................................................15
3.10 电机驱动电路以及模拟窗户的设计.....................................................................16
3.11 微型模拟窗的设计................................................................................................17
4 软件的设计及实现............................................................................................................17
4.1 温度的软件设计......................................................................................................17
4.2 湿度的软件设计......................................................................................................18
4.3 按键功能的软件设计..............................................................................................19
4.4 电机的软件设计......................................................................................................21
4.5 串口的软件设计.......................................................................................................22
5 软件硬件电路调试............................................................................................................22
6 总结....................................................................................................................................24
谢 辞......................................................................................................................................26
参考文献...............................................................................................................................26
附 录......................................................................................................................................27
附录一:系统发送模块原理图...........................................................................................27