C#串口通讯,复制粘贴就可用,仅仅介绍怎样最快的搭建一个串口通讯,异常拦截等等需要自己加上
using System;using System.Collections.Generic;using System.IO.Ports;using System.Text;//串口通讯类public class SerialPortManager{ //声明一个静态的串口资源 private SerialPort ComDevice = new SerialPort(); public SerialPortManager() { var portList = SerialPort.GetPortNames();//获取当前搜索到的串口集合 ComDevice.DataReceived += new SerialDataReceivedEventHandler(Com_DataReceived); //绑定事件,接收到串口数据时触发 } /// <summary> /// 打开和关闭串口, /// 前端放个按钮调用这个方法 /// 串口名称用SerialPort.GetPortNames()拉取所有串口,上面构造有写 /// 下面相关的参数具体有些哪些百度下就知道了,这块只是举例,当然也可以直接用 /// </summary> /// <param name="serialPortName">串口名称</param> /// <returns></returns> public void openOrCloseSerialPort(string serialPortName) { //判断当前状态是打开还是关闭,开启的话就关闭,反之就开启 if (ComDevice.IsOpen == false) { //设置串口名称 ComDevice.PortName = serialPortName; //设置波特率 ComDevice.BaudRate = 115200; //设置数据位 ComDevice.DataBits = 8; //校验位设置 ComDevice.StopBits = StopBits.One; //停止位设置 ComDevice.Parity = Parity.None; //开启串口 ComDevice.Open(); } else { ComDevice.Close();//关闭串口 } } /// <summary> /// 串口数据读取方法,在构造时已经监听 /// </summary> private void Com_DataReceived(object sender, SerialDataReceivedEventArgs e) { byte[] ReDatas = new byte[ComDevice.BytesToRead]; ComDevice.Read(ReDatas, 0, ReDatas.Length); //接收到的字节流 var data = ReDatas; //根据自己需求转换 var str = new UTF8Encoding().GetString(ReDatas); } /// <summary> /// 发送数据方法 /// </summary> /// <param name="data">需要发送的字节流</param> public void Com_SendData(byte[] data) { if (ComDevice.IsOpen) { ComDevice.Write(data, 0, data.Length);//发送数据 } }}
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