C# WPF 基于SerialPort类实现串口通信，打开、关闭、接收、发送，支持HEX数据和ASCII数据收发。
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纯小白教程，串口通信，实例自定义类，调用方法即可使用，可自己加定时器实现自动发送。
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界面.xaml
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- 后端.xmal.cs
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
SerialPortInit();
}
private CsMySerialPort mySerialPort = new CsMySerialPort();
private CsMySerialPort.SerialPortParm SpParm;
private void SerialPortInit()
{
SpParm.strPortName = "COM1";
SpParm.strBaudRate = "9600";
SpParm.strDataBits = "8";
SpParm.strStopBits = "1";
SpParm.strParity = "1";
mySerialPort.ReceEvent += ReceDataClick;
mySerialPort.SendEvent += IsHEXClick;
}
private bool ReceSerialPort(string strIn)
{
var strCompare = strIn.Split('-');
if (strCompare.Count() > 1)
{
if (strCompare[0] == "#Sp000")
{
T_Data.Text = SpParm.strPortName + "已连接";
return false;
}
if (strCompare[0] == "#Sp404")
{
T_Data.Text = SpParm.strPortName + "已断开";
return false;
}
}
return true;
}
private bool IsHEXClick(string strIn)
{
if (strIn == "#HEXSend")
return (bool)CB_SendType.IsChecked;
return true;
}
private bool ReceDataClick(string strIn)
{
if (strIn == "#HEXRece")
return (bool)CB_ReceType.IsChecked;
System.Windows.Application.Current.Dispatcher.BeginInvoke((Action)delegate ()
{
if (!ReceSerialPort(strIn))
return;
if (false)
TxRece.Text += strIn;
else
TxRece.Text += strIn + "\r\n";
});
return true;
}
private void BtClearTxRece_Click(object sender, RoutedEventArgs e) => TxRece.Text = string.Empty;
private void BtTxSend_Click(object sender, RoutedEventArgs e) => mySerialPort.ComSend(TxSend.Text);//HEX 输入格式要求 末尾不要输入空格和回车 ASCII 随意
private void BtConnect_Click(object sender, RoutedEventArgs e) => mySerialPort.OpenSerialPort(SpParm);
private void BtBreak_Click(object sender, RoutedEventArgs e) => mySerialPort.CloseSerialPort();
}
- 基于SerialPort类自定义的串口类
public class CsMySerialPort
{
///