本科论文目 录摘 要..................................................................................................................IAbstract....................................................................................................................II引 言.................................................................................................................11 控制系统设计.......................................................................................................31.1 方案选择......................................................................................................31.2 系统控制原理..............................................................................................42 系统硬件设计.......................................................................................................52.1 单片机的选择与设计..................................................................................52.2 温湿度模块设计..........................................................................................62.3 甲醛采集模块设计......................................................................................82.4 显示器模块设计..........................................................................................92.5 按键模块设计............................................................................................102.6 报警模块设计............................................................................................112.7 加湿及风扇模块设计................................................................................113 系统软件设计.....................................................................................................133.1 总流程方案设计........................................................................................133.2 温湿度获取的软件设计............................................................................143.3 液晶屏 LCD1602 的软件设计..............................
