C# 极简代码实现串口通信，功能超丰富

安装NuGet库

对项目右键单击，选择“管理NuGet程序包”。

搜索“BytesIO”，在列表中选择“STTech.BytesIO.Serial”串口通信库，在右边的详情面板中单击“安装”。

程序截图

事件监听

通过SerialClient可以监听串口的事件。

设计及实现

界面

控件排布及命名如图所示。

代码

主界面完整代码如下所示：

using STTech.BytesIO.Serial;
using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Test.BytesIO.Serial.Desktop
{
   
    public partial class MainForm : Form
    {
   
        // 串口连接客户端
        private SerialClient client;

        public MainForm()
        {
   
            InitializeComponent();

            // 创建串口通信客户端
            client = new SerialClient();

            // 向下拉选项框中添加所有串口名称
            cbPort.Items.AddRange(client.GetPortNames());

            // 监听连接成功事件
            client.OnConnectedSuccessfully += Client_OnConnectedSuccessfully;
            // 监听连接失败事件
            client.OnConnectionFailed += Client_OnConnectionFailed;
            // 监听断开连接事件
            client.OnDisconnected += Client_OnDisconnected;
            // 监听接收数据事件
            client.OnDataReceived += Client_OnDataReceived;
            // 监听发送数据事件
            client.OnDataSent += Client_OnDataSent;
            // 监听发生异常事件
            client.OnExceptionOccurs += Client_OnExceptionOccurs;
        }

        private void Client_OnExceptionOccurs(object sender, STTech.BytesIO.Core.Entity.ExceptionOccursEventArgs e)
        {
   
            Print($"异常: {e.Exception.Message}");
        }

        private void Client_OnDataSent(object sender, STTech.BytesIO.Core.Entity.DataSentEventArgs e)
        {
   
            Print($"发送: {e.Data.ToHexCodeString()}({e.Data.EncodeToString()})");
        }

        private void Client_OnDataReceived(object sender, STTech.BytesIO.Core.Entity.DataReceivedEventArgs e)
        {
   
            Print($"接收: {e.Data.ToHexCodeString()}({e.Data.EncodeToString()})");
        }

        private void Client_OnDisconnected(object sender, STTech.BytesIO.Core.Entity.DisconnectedEventArgs e)
        {
   
            Print("断开连接");
        }

        private void Client_OnConnectionFailed(object sender, STTech.BytesIO.Core.Entity.ConnectionFailedEventArgs e)
        {
   
            Print("连接失败");
        }

        private void Client_OnConnectedSuccessfully(object sender, STTech.BytesIO.Core.Entity.ConnectedSuccessfullyEventArgs e)
        {
   
            Print("连接成功");
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
   
            if (string.IsNullOrWhiteSpace(cbPort.Text))
            {
   
                return;
            }

            client.PortName = cbPort.Text;
            client.Connect();
        }

        private void btnDisconnect_Click(object sender, EventArgs e)
        {
   
            client.Disconnect();
        }

        private void btnSend_Click(object sender, EventArgs e)
        {
   
            client.Send(tbSend.Text.GetBytes());
        }

        /// <summary>
        /// 打印日志
        /// </summary>
        /// <param name="msg"></param>
        private void Print(string msg)
        {
   
            Invoke(new EventHandler(delegate
            {
   
                tbRecv.AppendText($"[{DateTime.Now.ToLongTimeString()}] {msg}\r\n");
            }));
        }
    }
}

源码下载

如果无法调试运行也没有关系，我已经整理打包上传到了CSDN下载站提供0积分下载：
https://download.csdn.net/download/lgj123xj/85139168