说明：  协调器建立ZigBee无线网络，终端节点自动加入该网络中，然后终端节点周期性地采集温度数据并将其发送给协调器，协调器收到温度数据后， 通过串口将其输出到用户PC 机。
(ZigBee coordinator to establish a wireless network, a terminal node is automatically added to the network, then the terminal node periodically collect temperature data and sends it to the coordinator, the coordinator after receiving the temperature data, Through the serial port outputs it to the user s PC.)