มีข้อส่งสัยในการเขียนโปแกรมให้เชื่อต่อ microconltroller

private void updateLabel()
        {
            //a = my.getData();
            label1.Text = inCommingByte.ToString();
        }

        public Form1()
        {
            InitializeComponent();
           // my = new Serial();
            try
            {
                comboBox1.Items.Clear();
                foreach (string ser in SerialPort.GetPortNames())
                {
                    comboBox1.Items.Add(ser);
                }
                comboBox1.SelectedIndex = 0;
            }
            catch
            {
                throw new Exception();
            }
           


        }

        private void button1_Click(object sender, EventArgs e)
        {

            if (IsConnect == false)
            {
                myport = new SerialPort(comboBox1.SelectedItem.ToString(), 9600, Parity.None, 8, StopBits.One);
                if (myport != null)
                {
                    myport.Open();                   
                    myport.DataReceived += new SerialDataReceivedEventHandler(serial_DataReceived);
                    Form2 f2 = new Form2(this);
                    OnSendMessage += f2.MessageReceived;
                    f2.Show();
                    btnConnect.Text = "Disconnect";
                    comboBox1.Enabled = false;
                }
               
            }
            else
            {
                if (IsConnect)
                {
                    btnConnect.Text = "Connect";
                    comboBox1.Enabled = true;
                    myport.Close();               
                }
            }
       }

        private void serial_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            inCommingByte = myport.ReadLine();

            OnSendMessage(sender, e);
            this.BeginInvoke(new updateData(updateLabel));

        }