串口调试助手，vb开发，可以接受和发送数据 通信方式：RS232单工方式 通讯波特率：9600b/s BB和EE 分别为开始结束标志-Serial debugging assistant, vb development, can receive and send data communications: RS232 simplex mode communication baud rate: 9600b/s BB and EE are marked beginning of the end