here is the design. If that can help I'm working with arduino uno kit as well.

below is the given code.

Public Class Form1

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Dim com1 As IO.Ports.SerialPort = Nothing

Light1.State = ToggleSwitch1.State 'power ON/OFF

If Light1.State = True Then 'check if the Power is ON

Try

'Insert correct Com port here

com1 = My.Computer.Ports.OpenSerialPort("COM3")

'set baud rate here

com1.BaudRate = 9600

'set parity to none

com1.Parity = IO.Ports.Parity.None

'set data bits to 8

com1.DataBits = 8

'set stop bits to 1

com1.StopBits = 1

'turn of data transmit ready and request to send handshaking

com1.DtrEnable = False

com1.RtsEnable = False

'give up if no reading for 10 seconds

com1.ReadTimeout = 10000

com1.Encoding = System.Text.Encoding.Default

Catch ex As TimeoutException

MsgBox("Error: Serial Port read timed out")

Finally

If com1 IsNot Nothing Then

Dim potData As String = com1.ReadLine() 'reading the pot

'writing the pot ADC values into the label 1

Label1.Text = potData

'close serial port

com1.Close()

End If

End Try

End If

End Sub

End Class

Part IV: Modify the Visual Studio code given above to convert the ADC numbers to voltage. This can simply be done by multiplying Label1.Text by a conversion factor of 5/1024. Your program must display the actual measured voltage values in Label1 and on the Meter. Part V: Add a code to your Visual Studio code to display pot resistance in addition to voltage. (You may want to add additional labels to your form similar to Label 1 and Label 2 in order to display the resistance) To calculate the resistance, you will need to develop the formula from circuit analysis Part IV: Modify the Visual Studio code given above to convert the ADC numbers to voltage. This can simply be done by multiplying Label1.Text by a conversion factor of 5/1024. Your program must display the actual measured voltage values in Label1 and on the Meter. Part V: Add a code to your Visual Studio code to display pot resistance in addition to voltage. (You may want to add additional labels to your form similar to Label 1 and Label 2 in order to display the resistance) To calculate the resistance, you will need to develop the formula from circuit analysis