Server.cs

namespace AccelerometerServer
{
    public class Server
    {
        public int Port;
        public bool HasClient = false;

        private Socket listener;
        private Socket handler;
        private string data = null;

        public Server(int port)
        {
            Port = port;
        }

        public void StartListening()
        {
            // Data buffer for incoming data.  
            byte[] bytes = new Byte[1024];
 
            IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());
            IPAddress ipAddress = ipHostInfo.AddressList[0];
            IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);

            // Create a TCP/IP socket.  
            listener = new Socket(ipAddress.AddressFamily,
                SocketType.Stream, ProtocolType.Tcp);
            
            try
            {
                listener.Bind(localEndPoint);
                listener.Listen(10);

                // Start listening for connections.  
                while (true)
                {
                    // Program is suspended while waiting for an incoming connection.  
                    handler = listener.Accept();
                    data = null;

                    // An incoming connection needs to be processed.  
                    while (true)
                    {
                        bytes = new byte[1024];
                        int bytesRec = handler.Receive(bytes);
                        data += Encoding.ASCII.GetString(bytes, 0, bytesRec);
                        if (data.IndexOf("<EOF>") > -1)
                        {
                            HasClient = true;
                            break;
                        }
                    }
                    //handler.Shutdown(SocketShutdown.Both);
                    //handler.Close();
                }

            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }

        public void Send(string data)
        {
            byte[] msg = Encoding.ASCII.GetBytes(data);
            handler.Send(msg);
        }
    }
}