UsingProtocol

代码说明：

说明：  自己实现的基于串口通讯发送短消息的低层协议JAVA代码，对于初学者有一定的参考和帮助价值，特意上传上来共享一下！(Their own realization of serial communication based on sending short messages JAVA code low-level agreement, for beginners there is a certain degree of reference and to help the value of deliberately upload up to share about!)