Add project files.

ComPortGpsClient.cs

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+using GpsClient2.Model;
+using GpsClient2.NmeaMessages;
+using GpsClient2.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO.Ports;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace GpsClient2 {
+    public class ComPortGpsClient : BaseGpsClient {
+        #region Private Properties
+
+        private readonly NmeaParser _parser = new NmeaParser();
+        private SerialPort _serialPort;
+
+        private DateTime? _previousReadTime;
+
+        #endregion
+
+        #region Constructors
+
+        public ComPortGpsClient(ComPortInfo connectionData) : base(GpsType.ComPort, connectionData) {
+        }
+
+        public ComPortGpsClient(BaseGpsInfo connectionData) : base(GpsType.ComPort, connectionData) {
+        }
+
+        #endregion
+
+        #region Connect and Disconnect
+
+        public override bool Connect() {
+            var data = (ComPortInfo)GpsInfo;
+
+            IsRunning = true;
+            OnGpsStatusChanged(GpsStatus.Connecting);
+            _serialPort = new SerialPort(data.ComPort, 9600, Parity.None, 8, StopBits.One);
+
+            // Attach a method to be called when there
+            // is data waiting in the port's buffer
+            _serialPort.DataReceived += port_DataReceived;
+            try {
+                // Begin communications
+                _serialPort.Open();
+
+                OnGpsStatusChanged(GpsStatus.Connected);
+                // Enter an application loop to keep this thread alive
+                while (_serialPort.IsOpen) {
+                    Thread.Sleep(data.ReadFrequenty);
+                }
+            } catch {
+                Disconnect();
+                throw;
+            }
+
+            return true;
+        }
+
+        public override bool Disconnect() {
+            _serialPort.Close();
+            IsRunning = false;
+            OnGpsStatusChanged(GpsStatus.Disabled);
+            return true;
+        }
+
+        #endregion
+
+        #region Location Callbacks
+
+        private void port_DataReceived(object sender, SerialDataReceivedEventArgs e) {
+            try {
+                var readString = _serialPort.ReadExisting();
+                OnRawGpsDataReceived(readString);
+                var result = _parser.Parse(readString);
+                if (typeof(GprmcMessage) != result.GetType()) return;
+                if (_previousReadTime != null && GpsInfo.ReadFrequenty != 0 && ((GprmcMessage)result).UpdateDate.Subtract(new TimeSpan(0, 0, 0, 0, GpsInfo.ReadFrequenty)) <= _previousReadTime) return;
+                OnGpsDataReceived(new GpsDataEventArgs((GprmcMessage)result));
+            } catch (UnknownTypeException ex) {
+                Console.WriteLine(ex.Message);
+            }
+        }
+
+        #endregion
+    }
+}