串口通讯程序实例，做了通讯超时处理，通讯错误处理-Instances of serial communication program, communications timeout handling, communication error handling

串口通讯控件,可以用来进行串口操作,文件中包含一个应用实例,可供参考!,(Serial communication control, can be used for a serial port operation, file contains an application example, for reference!)

串口通讯实例程序，需要用到串口程序的可以参考下(Serial communication instance program, you need to use the serial program can refer to)