设置简单的串口调试软件，有发送接收功能。串口设置是默认的，在程序中可修改。有正转、反转、快、中、慢按钮，这几个按钮单击后发送固定字符，以实现相应控制！-Set a simple serial debugging software, send and receive functions. Serial port settings is the default, the program can be modified. Has forward, reverse, fast, medium and s