该实验是在“点到点无线通信实验”的基础上进行开发，节点A 作为发射模块，节点B作为射频休眠实验的对象，PC 通过串口下达休眠和唤醒的指令给节点B，来实现对射频部件的唤醒和休眠功能。串口的设置为波特率1-The experiment is in the " point to point wireless communications experiment" based on the development of a transmitter module node A, node