first commit

Services/SerialPortService.cs

@@ -0,0 +1,53 @@
+using System;
+using System.IO.Ports;
+
+namespace OMControl.Services;
+
+public class SerialPortService : IDisposable
+{
+    private SerialPort? _serialPort;
+    public bool IsOpen => _serialPort?.IsOpen == true;
+    public event Action<string>? DataReceived;
+
+    public void Open(string portName, int baudRate = 9600)
+    {
+        if (IsOpen) return;
+
+        _serialPort = new SerialPort(portName, baudRate)
+        {
+            NewLine = "\n",
+            ReadTimeout = 1000,
+            WriteTimeout = 1000
+        };
+
+        _serialPort.DataReceived += OnDataReceived;
+        _serialPort.Open();
+    }
+
+    public void Close()
+    {
+        if (_serialPort == null) return;
+        _serialPort.DataReceived -= OnDataReceived;
+        _serialPort.Close();
+        _serialPort.Dispose();
+        _serialPort = null;
+    }
+
+    public void Send(string data)
+    {
+        if (!IsOpen || _serialPort == null) return;
+        _serialPort.WriteLine(data);
+    }
+
+    private void OnDataReceived(object sender, SerialDataReceivedEventArgs e)
+    {
+        try
+        {
+            var data = _serialPort?.ReadLine();
+            if (data != null) DataReceived?.Invoke(data);
+        }
+        catch { }
+    }
+
+    public void Dispose() => Close();
+}