通过串口发送at指令 等待返回值判断当前的网络状况以及服务商等有关信息 用与gprs的通信-sent through the serial port at the value orders waiting to return to judge the current state of network service providers and other relevant information in communications with EDGE

vc串口通讯源代码（含流控制）来源与其它网络信息-vc source code for serial communication

基于STM32F103用SN65HVD230 实现CAN网络通讯，并可通过串口助手输出相应信息-STM32F103 implementation using SN65HVD230 based on CAN network communication, and through the corresponding information assistant serial output

利用zigbee技术组件无线感知网络，电脑通过串行口接收来自于zigbee网络的感知信息。-Using zigbee technology to build a wireless-aware network, the computer through the serial port to receive the sensory information zigbee network.