C# 串口通信:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO.Ports;
using WpfSerial;
namespace WpfSerial
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        SerialPort sp = null;
       private void sp_DataReceived(object sender, SerialDataReceivedEventArgs e)  回调函数
        {
            System.Threading.Thread.Sleep(100);//延时 100ms 等待接收完数据
               Byte[] ReceivedData = new Byte[sp.BytesToRead]; //创建接收字节数组
               sp.Read(ReceivedData, 0, ReceivedData.Length); //读取所接收到的数据
               String RecvDataText = null;
                for (int i = 0; i < ReceivedData.Length - 1; i++)
                {
                    RecvDataText += ("0x" + ReceivedData[i].ToString() + " ");
                }
                MessageBox.Show(RecvDataText);
        }
        private void Serial_set(object sender, RoutedEventArgs e)
        {
            sp = new SerialPort();
            sp.PortName = "COM6";
            sp.BaudRate = 115200;
            sp.StopBits = StopBits.One;
            sp.DataBits = 8;
            sp.Parity = Parity.None;
            sp.ReadTimeout = 10;
            sp.DataReceived += new SerialDataReceivedEventHandler(sp_DataReceived);
            sp.Open();
        }

        private void Serial_send(object sender, RoutedEventArgs e)
        {
            sp.WriteLine("1234567");
        }
    }
}