สอบถามเขียนโปรแกรม C# ติดต่อกับ Serial Port จะวัดอุณหภูมิแล้วโช Address,วันเดือนปีและก็เวลาครับตอนนี้โชแต่อุณหภูมิ

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string[] portNames = System.IO.Ports.SerialPort.GetPortNames();
            for (int i = 0; i <= portNames.Length - 1; i++)
            {
                comboBox1.Items.Add(portNames[i]);
            }

        }

        private void button1_Click(object sender, EventArgs e)
        {
            //---close the serial port if it is open---
            if (serialPort1.IsOpen)
            {
                serialPort1.Close();
            }
            serialPort1.PortName = comboBox1.Text;
            serialPort1.BaudRate = 9600;
            serialPort1.Parity = System.IO.Ports.Parity.None;
            serialPort1.DataBits = 8;
            serialPort1.StopBits = System.IO.Ports.StopBits.One;
            //---open the serial port---
            serialPort1.Open();
        }

        private void button2_Click(object sender, EventArgs e)
        {
                        //---close the serial port---
            serialPort1.Close();
        
        }

        private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            //---invoke the delegate to retrieve the received data---
            textBox1.BeginInvoke(new myDelegate(updateTextBox)) ;
            

        }

        public delegate void myDelegate();
        public void updateTextBox()
        {
            //---append the received data into the TextBox control---
            textBox1.AppendText(serialPort1.ReadExisting());
            textBox1.ScrollToCaret();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            
        }


    }
    
}