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Sainsmart 8 ch relay module vb.net code

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ral6639

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I recently purchased a 8 ch sainsmart relay module and they supplied a 4 ch relay code. I have not been able to get all 8 ch to operate . Can any look over my code and help me out.

Code: 
Imports FTD2XX_NET.FTDI

Public Class Form1
    Inherits System.Windows.Forms.Form


#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
    Friend WithEvents CheckBox3 As System.Windows.Forms.CheckBox
    Friend WithEvents CheckBox5 As System.Windows.Forms.CheckBox
    Friend WithEvents CheckBox7 As System.Windows.Forms.CheckBox
    Friend WithEvents TextBox4 As System.Windows.Forms.TextBox
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents TextBox5 As System.Windows.Forms.TextBox
    Friend WithEvents Label6 As System.Windows.Forms.Label
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.TextBox3 = New System.Windows.Forms.TextBox()
        Me.CheckBox1 = New System.Windows.Forms.CheckBox()
        Me.CheckBox3 = New System.Windows.Forms.CheckBox()
        Me.CheckBox5 = New System.Windows.Forms.CheckBox()
        Me.CheckBox7 = New System.Windows.Forms.CheckBox()
        Me.TextBox4 = New System.Windows.Forms.TextBox()
        Me.Label4 = New System.Windows.Forms.Label()
        Me.Label5 = New System.Windows.Forms.Label()
        Me.TextBox5 = New System.Windows.Forms.TextBox()
        Me.Label6 = New System.Windows.Forms.Label()
        Me.Button3 = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(328, 16)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(128, 32)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Click here to run"
        '
        'TextBox1
        '
        Me.TextBox1.BackColor = System.Drawing.SystemColors.GradientActiveCaption
        Me.TextBox1.Enabled = False
        Me.TextBox1.Location = New System.Drawing.Point(152, 40)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(144, 20)
        Me.TextBox1.TabIndex = 1
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(320, 352)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(128, 32)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "Exit"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(16, 40)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(112, 16)
        Me.Label1.TabIndex = 3
        Me.Label1.Text = "Number of Devices"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'TextBox2
        '
        Me.TextBox2.BackColor = System.Drawing.SystemColors.GradientActiveCaption
        Me.TextBox2.Enabled = False
        Me.TextBox2.Location = New System.Drawing.Point(152, 80)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(144, 20)
        Me.TextBox2.TabIndex = 4
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 80)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(136, 23)
        Me.Label2.TabIndex = 5
        Me.Label2.Text = "Serial Number of Device 0"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 120)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(128, 23)
        Me.Label3.TabIndex = 6
        Me.Label3.Text = "Description of Device 0"
        '
        'TextBox3
        '
        Me.TextBox3.BackColor = System.Drawing.SystemColors.GradientActiveCaption
        Me.TextBox3.Enabled = False
        Me.TextBox3.Location = New System.Drawing.Point(152, 112)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.Size = New System.Drawing.Size(144, 20)
        Me.TextBox3.TabIndex = 7
        '
        'CheckBox1
        '
        Me.CheckBox1.AutoSize = True
        Me.CheckBox1.Location = New System.Drawing.Point(152, 209)
        Me.CheckBox1.Name = "CheckBox1"
        Me.CheckBox1.Size = New System.Drawing.Size(15, 14)
        Me.CheckBox1.TabIndex = 8
        Me.CheckBox1.UseVisualStyleBackColor = True
        '
        'CheckBox3
        '
        Me.CheckBox3.AutoSize = True
        Me.CheckBox3.Location = New System.Drawing.Point(194, 209)
        Me.CheckBox3.Name = "CheckBox3"
        Me.CheckBox3.Size = New System.Drawing.Size(15, 14)
        Me.CheckBox3.TabIndex = 10
        Me.CheckBox3.UseVisualStyleBackColor = True
        '
        'CheckBox5
        '
        Me.CheckBox5.AutoSize = True
        Me.CheckBox5.Location = New System.Drawing.Point(236, 209)
        Me.CheckBox5.Name = "CheckBox5"
        Me.CheckBox5.Size = New System.Drawing.Size(15, 14)
        Me.CheckBox5.TabIndex = 12
        Me.CheckBox5.UseVisualStyleBackColor = True
        '
        'CheckBox7
        '
        Me.CheckBox7.AutoSize = True
        Me.CheckBox7.Location = New System.Drawing.Point(278, 209)
        Me.CheckBox7.Name = "CheckBox7"
        Me.CheckBox7.Size = New System.Drawing.Size(15, 14)
        Me.CheckBox7.TabIndex = 14
        Me.CheckBox7.UseVisualStyleBackColor = True
        '
        'TextBox4
        '
        Me.TextBox4.BackColor = System.Drawing.SystemColors.GradientActiveCaption
        Me.TextBox4.Enabled = False
        Me.TextBox4.Location = New System.Drawing.Point(152, 151)
        Me.TextBox4.Name = "TextBox4"
        Me.TextBox4.Size = New System.Drawing.Size(144, 20)
        Me.TextBox4.TabIndex = 17
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(16, 159)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(128, 23)
        Me.Label4.TabIndex = 16
        Me.Label4.Text = "Byte written"
        '
        'Label5
        '
        Me.Label5.Location = New System.Drawing.Point(16, 209)
        Me.Label5.Name = "Label5"
        Me.Label5.Size = New System.Drawing.Size(128, 23)
        Me.Label5.TabIndex = 18
        Me.Label5.Text = "Relays"
        '
        'TextBox5
        '
        Me.TextBox5.Location = New System.Drawing.Point(150, 247)
        Me.TextBox5.Name = "TextBox5"
        Me.TextBox5.Size = New System.Drawing.Size(142, 20)
        Me.TextBox5.TabIndex = 19
        '
        'Label6
        '
        Me.Label6.AutoSize = True
        Me.Label6.Location = New System.Drawing.Point(16, 250)
        Me.Label6.Name = "Label6"
        Me.Label6.Size = New System.Drawing.Size(36, 13)
        Me.Label6.TabIndex = 20
        Me.Label6.Text = "Inputs"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(328, 247)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(127, 20)
        Me.Button3.TabIndex = 21
        Me.Button3.Text = "Read"
        Me.Button3.UseVisualStyleBackColor = True
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(472, 405)
        Me.Controls.Add(Me.Button3)
        Me.Controls.Add(Me.Label6)
        Me.Controls.Add(Me.TextBox5)
        Me.Controls.Add(Me.Label5)
        Me.Controls.Add(Me.TextBox4)
        Me.Controls.Add(Me.Label4)
        Me.Controls.Add(Me.CheckBox7)
        Me.Controls.Add(Me.CheckBox5)
        Me.Controls.Add(Me.CheckBox3)
        Me.Controls.Add(Me.CheckBox1)
        Me.Controls.Add(Me.TextBox3)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub

#End Region

    'Based on D2XX_Unit_NET example code found on FTDI website
    'Modified to reference the FTD2XX_NET.dll in a .NET way
    'Brian Hughes 01 Dec 2011

    Dim DeviceCount As Integer
    Dim DeviceIndex As Integer
    Dim TempDevString As String
    Dim BytesWritten As UInteger
    Dim TempStringData As String
    Dim BytesRead As Integer
    Dim Board As FTD2XX_NET.FTDI

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim arrBytes(1) As Byte
        Dim BitPattern As Byte = 0
        If CheckBox7.Checked Then
            BitPattern = BitPattern Or 2
        End If
        If CheckBox5.Checked Then
            BitPattern = BitPattern Or 8
        End If
        If CheckBox3.Checked Then
            BitPattern = BitPattern Or 32
        End If
        If CheckBox1.Checked Then
            BitPattern = BitPattern Or 128
        End If
        TextBox4.Text = BitPattern.ToString
        arrBytes(0) = BitPattern
        BytesWritten = 0
        ' Set Relays on
        FT_Status = Board.Write(arrBytes, 1, BytesWritten)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        ' Close device
        FT_Status = Board.Close()
        If FT_Status <> FT_OK Then
            Exit Sub
        End If
        Me.Dispose()
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Board = New FTD2XX_NET.FTDI()

        ' Get the number of devices attached
        FT_Status = Board.GetNumberOfDevices(DeviceCount)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If
        ' Display device count on form
        TextBox1.Text = DeviceCount.ToString

        FT_Status = Board.OpenByIndex(0)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If

        ' Get serial number of device with index 0
        FT_Serial_Number = ""
        FT_Status = Board.GetSerialNumber(FT_Serial_Number)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If
        ' Display serial number on form
        TextBox2.Text = FT_Serial_Number

        ' Get description of device with index 0
        FT_Description = ""
        Board.GetDescription(FT_Description)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If
        TextBox3.Text = FT_Description

        ' Reset device
        FT_Status = Board.ResetDevice()
        If FT_Status <> FT_OK Then
            Exit Sub
        End If

        ' Set Baud Rate
        FT_Status = Board.SetBaudRate(FT_BAUD_921600)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If

        Dim mask As Byte

        mask = 170

        ' Set Bit Bang
        FT_Status = Board.SetBitMode(mask, FT_BIT_MODES.FT_BIT_MODE_ASYNC_BITBANG)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim arrByte As Byte
        Dim BitPattern As Byte = 0
        FT_Status = Board.GetPinStates(arrByte)
        If FT_Status <> FT_OK Then
            Exit Sub
        End If

        TextBox5.Text = arrByte
    End Sub
End Class
 

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