Interface from Arduino to VB.net, need help as a beginner

Projects Interfacing w/ Software on the Computer
11

Not shure exactly what i did to get it working, but think the problem was that i forgot to add
Imports System.IO.Ports

This is my working VB code:

Imports System.IO.Ports

Public Class Form1
    Private Delegate Sub myDelegate(ByVal Buffer As String)

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load
        SerialPort1.Open()
    End Sub

    Private Sub SerialPort1_DataReceived(sender As Object, e As SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived

        SerialPort1.ReadTimeout = 50

        Dim sData As String = Nothing
        Try
            sData = SerialPort1.ReadLine
        Catch ex As Exception

        End Try

        Me.BeginInvoke((New myDelegate(AddressOf DisplayData)), sData)

    End Sub

    Private Sub DisplayData(ByVal sdata As String)

        Dim txtarray As String() = Split(sdata, ",")

        If txtarray.Count = 2 Then
            If txtarray(0) = "Sensor1" Then
                TextBox1.Text = "Sensor 1 value=" & txtarray(1) & " %"
            End If

            If txtarray(0) = "Sensor2" Then
                TextBox2.Text = "Sensor 2 value=" & txtarray(1) & " %"
            End If

        End If

    End Sub
End Class

And this is my working Arduino code:

#define soilSensor1 A0
#define soilSensor2 A1

#define pump1 2
#define pump2 3


const int dry = 558;
const int wet = 290;
const int dry1 = 562;
const int wet1 = 310;

int percentageHumididy;
int percentageHumididy2;

const unsigned long Seconds = 1000;
const unsigned long Minutes = 60 * Seconds;
unsigned long PreviousMillis = 0;



    
void setup() {
  pinMode(pump1, OUTPUT);
  pinMode(pump2, OUTPUT);

  
  Serial.begin(9600);

  
}

void loop()
{

  int sensorVal1 = analogRead(soilSensor1);
  int percentageHumididy = map(sensorVal1, wet, dry, 100, 0)
  ;Serial.print("Sensor1,");
  Serial.println(percentageHumididy);


  int sensorVal2 = analogRead(soilSensor2);
  int percentageHumididy2 = map(sensorVal2, wet1, dry1, 100, 0)
  ;Serial.print("Sensor2,");
  Serial.println(percentageHumididy2);



  {
  if (millis() - PreviousMillis >= 1 * Minutes)
  {
    PreviousMillis += 1 * Minutes;
    if (sensorVal1 > 380 )
    {
      digitalWrite(pump1, HIGH);
      delay(10000);
      digitalWrite(pump1, LOW);
    }
  }
}

   {
  if (millis() - PreviousMillis >= 1 * Minutes)
  {
    PreviousMillis += 1 * Minutes;
    if (sensorVal2 > 380 )
    {
      digitalWrite(pump2, HIGH);
      delay(10000);
      digitalWrite(pump2, LOW);
    }
  }
}
  
  delay(1000);
}

I allready got some projects with "buttons to open and close" "baud-rates" and "available COM ports", so I'll take a look at that..

I would like to get it to work with "circular_progress_bar" and maybe a chart of some kind, so if you could tell me where to start, please do :slight_smile:
Fonts and other stuff i will manage myself :slight_smile: