B4J Question Is it possible to interface Fingerprint Reader ( ADST11SD300&310 ) to Raspberry Pi using B4J?

Crisanto A. Tadiosa III · Oct 8, 2014

Good Day,

I want to seek some help about my small project, wherein I need to integrate Finger Print Reader (ADST11SD300&310) to my Raspberry Pi, I already develop a system using b4j for this project but I've been block on how I will convert the sample code for Fingerprint reader to b4j code even thought it is written in vb6 and also I was planning to use jSerial for this.

Thank you very much.
-Cris

Here is the Sample Code Provided for fingerprint reader (ADST11SD300&310) written in vb6.

B4X:

Option Explicit
Dim SData(24) As Byte
Dim SReply(48) As Byte
Dim Replied As Boolean
Dim Rx As String
Dim CKS As Integer

Private Sub cmdClear_Click()
Dim i As Integer
Dim dummy As String

For i = 1 To 22
    SData(i) = 0
Next i

SData(0) = &H55
SData(1) = &HAA
SData(2) = &H6
SData(3) = &H1
Call Checksum
Replied = False
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
While Replied = False
    DoEvents
    Wend
If SReply(6) = 0 Then
    txtResults.Text = "All Users deleted!"
Else
    txtResults.Text = "Error!"
End If
End Sub

Private Sub cmdRead_Click()
Dim i As Integer
Dim dummy As String
txtResults.Text = "Let me read your Finger..."
 
For i = 1 To 22
    SData(i) = 0
Next i
SData(0) = &H55
SData(1) = &HAA
SData(2) = &H2
SData(3) = &H1
Call Checksum
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
back:
Replied = False
While Replied = False
    DoEvents
    Wend
If Asc(Mid$(Right$(Rx, 24), 7, 1)) = 0 Then
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &HF4 And Asc(Mid$(Right$(Rx, 24), 10, 1)) = &HFF Then
        GoTo back
    End If
    txtResults.Text = "Hello No. " + Str(Int(Asc(Mid$(Right$(Rx, 24), 10, 1)) * 256 + Asc(Mid$(Right$(Rx, 24), 9, 1)))) + "  Welcome!"
Else
    Print_Error
End If
   
End Sub

Private Sub cmdReg_Click()
Dim i As Integer
Dim dummy As String
Dim V1, V2 As Integer
Dim Good As Boolean

Good = True

V1 = Int(Val(txtUserNo.Text) / 256)
V2 = Val(txtUserNo.Text) - V1 * 256

For i = 1 To 22
    SData(i) = 0
Next i
SData(0) = &H55
SData(1) = &HAA
SData(2) = &H3
SData(3) = &H1
SData(4) = &H2
SData(5) = &H0
SData(6) = V2
SData(7) = V1
Call Checksum
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
back:
Replied = False
While Replied = False
    DoEvents
    Wend
If SReply(6) = 0 Then
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &HF1 And Asc(Mid$(Right$(Rx, 24), 10, 1)) = &HFF Then
        txtResults.Text = "Press a finger to register first time."
    End If
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &HF2 And Asc(Mid$(Right$(Rx, 24), 10, 1)) = &HFF Then
        txtResults.Text = "Press the same finger the second time..."
    End If
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &HF3 And Asc(Mid$(Right$(Rx, 24), 10, 1)) = &HFF Then
        txtResults.Text = "Press the same finger the last time..."
    End If
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &HF4 And Asc(Mid$(Right$(Rx, 24), 10, 1)) = &HFF Then
        txtResults.Text = "Lift finger..."
    End If
    If Asc(Mid$(Right$(Rx, 24), 5, 1)) = &H6 Then
        txtResults.Text = "Ok"
        Exit Sub
    End If
    GoTo back
Else
    Print_Error
    If SReply(8) = &H21 Then GoTo back
    End If
End Sub

Private Sub cmdRemove_Click()
Dim i As Integer
Dim dummy As String
Dim V1, V2 As Integer

V1 = Int(Val(txtUserNo.Text) / 256)
V2 = Val(txtUserNo.Text) - V1 * 256

For i = 1 To 22
    SData(i) = 0
Next i

SData(0) = &H55
SData(1) = &HAA
SData(2) = &H5
SData(3) = &H1
SData(4) = &H2
SData(5) = &H0
SData(6) = V2
SData(7) = V1
Call Checksum
Replied = False
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
While Replied = False
    DoEvents
    Wend
If SReply(6) = 0 Then
    txtResults.Text = "User No. " + txtUserNo.Text + " Removed!"
Else
    txtResults.Text = "Error!"
End If

End Sub

Private Sub Command1_Click()
Dim i As Integer
Dim dummy As String
Dim V1, V2 As Integer

V1 = Int(Val(txtUserNo.Text) / 256)
V2 = Val(txtUserNo.Text) - V1 * 256

For i = 1 To 22
    SData(i) = 0
Next i

SData(0) = &H55
SData(1) = &HAA
SData(2) = &H4
SData(3) = &H1
SData(4) = &H2
SData(5) = &H0
SData(6) = V2
SData(7) = V1
Call Checksum
Replied = False
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
While Replied = False
    DoEvents
    Wend

End Sub

Private Sub Command2_Click()
Dim i As Integer
Dim dummy As String
Dim V1, V2 As Integer

V1 = Int(Val(txtUserNo.Text) / 256)
V2 = Val(txtUserNo.Text) - V1 * 256

For i = 1 To 22
    SData(i) = 0
Next i

SData(0) = &H55
SData(1) = &HAA
SData(2) = &H2
SData(3) = &H1
'SData(4) = &H2
'SData(6) = V1
'SData(7) = V2
Call Checksum
Replied = False
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
While Replied = False
    DoEvents
    Wend
End Sub

Private Sub Command3_Click()
Dim i As Integer
Dim dummy As String

For i = 1 To 22
    SData(i) = 0
Next i

SData(0) = &H55
SData(1) = &HAA
SData(2) = &H30
SData(3) = &H1
Call Checksum
Replied = False
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
While Replied = False
    DoEvents
    Wend
If SReply(6) = 0 Then
    txtResults.Text = "Cancelled!"
Else
    txtResults.Text = "Error!"
End If

End Sub

Private Sub Command4_Click()
    LED_On
End Sub

Private Sub Command5_Click()
    LED_Off
End Sub

Private Sub Form_Load()
MSComm1.PortOpen = True
End Sub

Public Sub Checksum()
Dim i As Integer

CKS = 0
For i = 0 To 21
    CKS = CKS + SData(i)
Next i

SData(22) = CKS And &HFF
SData(23) = (CKS - (CKS And &HFF)) / 256

End Sub

Public Sub Finger_Detect()
Dim i As Integer
Dim dummy As String

wait_finger:
For i = 1 To 22
    SData(i) = 0
Next i
SData(0) = &H55
SData(1) = &HAA
SData(2) = &H13
SData(3) = &H1
Call Checksum
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
Replied = False
While Replied = False
    DoEvents
    Wend
If SReply(8) = 0 Then
    GoTo wait_finger
End If

End Sub

Public Sub LED_On()
Dim i As Integer
Dim dummy As String

For i = 1 To 22
    SData(i) = 0
Next i
SData(0) = &H55
SData(1) = &HAA
SData(2) = &H24
SData(3) = &H1
SData(4) = 2
SData(5) = 0
SData(6) = 1
Call Checksum
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
Replied = False
While Replied = False
    DoEvents
    Wend

End Sub

Public Sub LED_Off()
Dim i As Integer
Dim dummy As String

For i = 1 To 22
    SData(i) = 0
Next i
SData(0) = &H55
SData(1) = &HAA
SData(2) = &H24
SData(3) = &H1
SData(4) = 2
Call Checksum
dummy = MSComm1.Input
For i = 0 To 23
MSComm1.Output = Chr(SData(i))
Next i
Replied = False
While Replied = False
    DoEvents
    Wend
End Sub

Public Sub Print_Error()
    If Asc(Mid$(Right$(Rx, 24), 9, 1)) = &H12 Then
        txtResults.Text = "User not registered."
    ElseIf Asc(Mid$(Right$(Rx, 24), 9, 1)) = &H14 Then
        txtResults.Text = "Location not empty!"
    ElseIf Asc(Mid$(Right$(Rx, 24), 9, 1)) = &H15 Then
        txtResults.Text = "No enrolled user!"
    ElseIf Asc(Mid$(Right$(Rx, 24), 9, 1)) = &H21 Then
        txtResults.Text = "Bad quality fingerprint image!"
    ElseIf Asc(Mid$(Right$(Rx, 24), 9, 1)) = &H60 Then
        txtResults.Text = "Location No. not valid!"
    End If
End Sub

Private Sub MSComm1_OnComm()
Dim RxNumeric As String
Dim i As Integer

Rx = MSComm1.Input
RxNumeric = ""
For i = 1 To Len(Rx)
SReply(i - 1) = Asc(Mid(Rx, i, 1))
RxNumeric = RxNumeric + " " + Hex(SReply(i - 1))
Next i
txtWindow.Text = RxNumeric
Replied = True
End Sub

Private Sub Timer1_Timer()
    Timer1.Enabled = False
End Sub

Erel · Oct 9, 2014

Have you tried to open the port with jSerial? If it succeeds then it should be possible to convert this code to B4J.

Crisanto A. Tadiosa III · Oct 9, 2014

Hi Erel,

Thanks for your fast reply. Yes I tried, and good new based on my test. I successfully open the port but my problem now is the conversion of some code from vb6 to b4j. I'm not currently familiar with the syntax. Can you guide me Erel?

Thank you very much.
-Cris

Crisanto A. Tadiosa III · Oct 10, 2014

Hi Erel,

Good day, I just solve my problem.
Here's my references.
Converting VB6 to B4A
B4A=? VS VisualBasic=Port1.Write(Chr(2)) / Comment #10

Even thought they are for b4a and I'm currently working with b4j, They still help me a lot.

Thank you very much.
-Cris

B4J Question Is it possible to interface Fingerprint Reader ( ADST11SD300&310 ) to Raspberry Pi using B4J?

Crisanto A. Tadiosa III

New Member

Erel

B4X founder

Crisanto A. Tadiosa III

New Member

Crisanto A. Tadiosa III

New Member

B4J Question Is it possible to interface Fingerprint Reader ( ADST11SD300&310 ) to Raspberry Pi using B4J?

Crisanto A. Tadiosa III

New Member

Erel

B4X founder

Crisanto A. Tadiosa III

New Member

Crisanto A. Tadiosa III

New Member

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