用串口通讯工具，功能：1、对数据可以以16进制或字符形式收发，2、定时发送指定数据，3、根据接受指定字符自动回复。-using serial communications tools and functions : 1, the data can be 16 characters or form band transceiver, 2, regularly sending specific data, 3, under the designated characters automatic re