View difference between Paste ID: xjgWBTxB and UfMVd6q9

 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
 using System.Drawing;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using System.Diagnostics;
 using System.Windows.Forms.DataVisualization.Charting;
 
 namespace WEEK2
 {
     public partial class Form1 : Form
     {
         #region global variables
         float readBuffer1;
 
         private string readBuffer = string.Empty;  // buffer to store characters
 
 
         #endregion
         public Form1()
         {
             InitializeComponent();                 //intialize form1
         }
 
         #region connect to serial port open port set parameters and run timer
         private void button1_Click(object sender, EventArgs e)
 
         {
             if (!serialPort1.IsOpen)
             {
                 serialPort1.PortName = "COM4";          //look in your PC wich comport is connected      (device manager)
                 serialPort1.Open();                     //open serialPort1
                 richTextBox1.Text = "comport opened ";  //show in textbox that the comport is opened
                 serialPort1.ReceivedBytesThreshold = 20; //threshold 20 bytes received  event trigger
                 //serialPort1.NewLine = "\r";            //te onstabiel als ik deze laat staan.   // last char to be recognised
                 serialPort1.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(SerialPort1_DataReceived);
                 //timer1.Enabled = true;
             }
         }
 
         #endregion
 
         #region read databuffer received
         private void SerialPort1_DataReceived(System.Object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
         {
 
             byte[] data1 = new byte[serialPort1.BytesToRead];           //stukje code om binaire
             serialPort1.Read(data1, 0, data1.Length);                   //waardes te kunnen lezen
             readBuffer = System.Text.Encoding.UTF8.GetString(data1);    //en gebruiken.
             readBuffer1 = serialPort1.ReadByte();   //readByte
 
             Invoke(new EventHandler(DoUpdate));            //update
 
         }
         #endregion
 
         #region update the text in textbox enable timer for next
         public void DoUpdate(object sender, System.EventArgs e)
         {
             byte data = (byte)serialPort1.ReadByte();
             // double voltage = Math.Round(data * (5.0 / 255)); //berekening om de spanning weer te geven, ,2 voor 2 decimalen en round rond de cijfers af
             //readBuffer = voltage.ToString();  //convert voltage to string and put in readBuffer
             readBuffer = data.ToString();
             //richTextBox1.Text = readBuffer;//show value
             Volt.Text = readBuffer;         //show value on the label
         }
 
         #endregion
 
         private void Volt_Click(object sender, EventArgs e)
         {
 
         }
 
         #region button close; close serial port timer off give messagebox
         private void button2_Click_1(object sender, EventArgs e)
         {
             {
                 serialPort1.Close();                        //close serialPort1
                 richTextBox1.Text = "serial port closed";   //show text in richtextbox
                 MessageBox.Show("Temperature meter Thiemo Hoek"); //show message box
                 this.Close();       //close program
             }
         }
 
         private void label1_Click(object sender, EventArgs e)
         {
 
         }
 
         private void chart1_Click(object sender, EventArgs e)
         {
 
             string x1 = Volt.Text;
             var chart = chart1.ChartAreas[0];
             chart.AxisX.IntervalType = DateTimeIntervalType.Number;
 
             chart.AxisX.LabelStyle.Format = "";
             chart.AxisY.LabelStyle.Format = "";
             chart.AxisY.LabelStyle.IsEndLabelVisible = true;
             chart.AxisX.Minimum = 0;
             chart.AxisX.Maximum = 20;
             chart.AxisY.Minimum = 0;
             chart.AxisY.Maximum = 50;
             chart.AxisX.Interval = 1;
             chart.AxisY.Interval = 5;
 
             chart1.Series.Add("degrees");
             chart1.Series["degrees"].ChartType = SeriesChartType.Line;
             chart1.Series["degrees"].Color = Color.Red;
             chart1.Series[0].IsVisibleInLegend = false;
 
             for(int x = 0; x<21; x++)
             {
                 chart1.Series["degrees"].Points.AddXY(x,x1);
 
             }
 
 
 
         }
     }
 }
         #endregion