自己写的简单上位机软件，

实现对com1口的监听，

uart，

界面不是很完善，

提醒要自己写的同学们：

界面中输入的是字符串，

要输出到串口，

必须转化成16进制，

否则底层的协议是不会通过的。-Write your own simple PC software to realize the com1 port monitor, uart, the interface is not perfect, remind students to write their own: the string entered in the interface to output to the serial port must be translated into 16 hex, Otherwise, the underlying protocol is not adopted.