3.1.5 光照传感器...................................................................................................25
3.1.6 温湿度传感器...............................................................................................27
3.2 微处理器选型
...........................................................................................................28
3.3 通信模块的选型.......................................................................................................29
3.4 显示模块的选择.......................................................................................................31
3.5 电源模块电路的设计
...............................................................................................32
3.6 SIM 卡模块电路........................................................................................................35
3.7 执行机构的模块电路
...............................................................................................35
3.8 USB 接口电路的设计................................................................................................36
3.9 报警电路的设计
.......................................................................................................37
3.10 EEPROM 掉电存储模块............................................................................................38
3.11 本章小结
..................................................................................................................39
第四章 系统的软件设计.........................................................................................................41
4.1 Keil uVison5 开发环境
.........................................................................................41
4.2 系统整体的流程设计...............................................................................................41
4.3 系统各个模块的程序设计.......................................................................................43
4.3.1 系统初始化
...................................................................................................43
4.3.2 数据采集模块
...............................................................................................43
4.3.3 执行机构模块...............................................................................................46
4.3.4 串口屏显示模块...........................................................................................48
4.3.5 EEPROM 掉电存储模块
..................................................................................51
4.4 OneNet 平台软件的设计..........................................................................................52
4.4.1 OneNet 平台简介
..........................................................................................52
4.4.2 OneNet 平台的资源模型..............................................................................53
4.4.3 OneNet 平台设备的建立
..............................................................................54
4.4.4 平台资源的上传...........................................................................................55
4.4.5 OneNet 平台数据显示
..................................................................................57
4.5 本章小结...................................................................................................................59
第五章 系统功能测试
.............................................................................................................61
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