这个是开源的安卓串口操作项目，如果你要学习安卓串口编程，那么这个是非常好的源码用来入门。-This is an open source project Andrews serial operation, if you want to learn Andrews serial programming, then this is a very good source to get started.

Android开发 Java编程 串口通信源代码(Android Develops Java Programming Serial Communication Source Code)