投影机双串口控制程序，里面功能模块详细，有很大的参考价值。-Projector dual serial control program, which features detailed modules have great reference value.

品牌、型号、串口码对应表。包含了各种各样的投影机控制代码，非常好用的。-Brand, model, serial code correspondence table. Contains a variety of projector control code, very easy to use.

公司的一个室内环境监测项目，需要用安卓手机的蓝牙连接蓝牙模块，应用发送命令给蓝牙模块，控制单片机，操作窗帘的打开关闭，投影幕布的升降。还可以显示室内环境数据。-The company is an indoor environmental monitoring project, we need to use Android phone' s Bluetooth connection Bluetooth module, the application sends a command to th