kung Plug & Play yung device mo no need mo na ng port... TextBox lang and KeyPress code yun lang kung ang device mo eh me writer need mo ng frequency at port number... and baud rate kung thesis lang yan so yung RFID nyo eh reader lang no need na ng port
Good day this tutorial demonstrate how to create You do not have permission to view the full content of this post.Log in or register now. (RFID) Tag Card Reader
Lets Start Coding...
First open your visual studio language any version and create new project
Second add the following object to your form
1. One SerialPort
2. One TextBox
3. One ListBox
Setup your SerialPort.
1. BaudRate = 9600
2. DataBit = 8
3. DiscardNull = False
4. DtrEnable = False
5. HandShake = None
6. Parity = None
7. ParityRepalce = 63
8. PortName = check your com port name ether COM1 or Any but make sure your com name is correct
9. ReadBufferSize = 4096
10. RtsEnable = False
11. StopBit = One
12. WriteBufferSize = 2048
Now for the code
Code:
Public Class Form1
Dim data as string = nothing
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
System.Windows.Forms.Control.CheckForïllêgâlCrossThreadCalls = False
End Sub
Private Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
data = data + SerialPort1.ReadExisting() ' Need to read existing data to clean all pending data
If Len(data) > 16 Then
SerialPort1.DtrEnable = False
TextBox1.Text = Microsoft.VisualBasic.Mid(data, 2, 12)
Dim li As ListBox.ObjectCollection
li = ListBox1.Items
If Not li.Contains(TextBox1.Text) Then
ListBox1.Items.Add(Microsoft.VisualBasic.Mid(data, 2, 12))
Beep()
End If
Dim delay As DateTimeOffset = Now.AddMilliseconds(1500)
Do
Application.DoEvents()
Loop Until Now > delay
data = SerialPort1.ReadExisting()
SerialPort1.DiscardInBuffer()
data = String.Empty
SerialPort1.DtrEnable = True
End If
End Sub
End Class
Now you need an RFID Reader Device and Tag Card, Press F5 and start debugging
make sure the cursor is point into TextBox1... Top your Tag Card to the device and you see the tag card data on list box.
yung lowcost RFID reader ng egizmo po ba pwede kmi mag datbase dun ? i mean pag bumili kmi ng read/write na RFID card pwede niya mapalitan yung data na nka store sa card ? Thanks para po sa thesis namin PLEASE ... tnx
yung lowcost RFID reader ng egizmo po ba pwede kmi mag datbase dun ? i mean pag bumili kmi ng read/write na RFID card pwede niya mapalitan yung data na nka store sa card ? Thanks para po sa thesis namin PLEASE ... tnx CodeWarrior
hi, good morning ... I got an error regarding with the
system.windows.forms.control.checkforïllêgâlcrossthreadcalls = false
control it says checkforillegalcrossthreadcalls is not a member... what is wrong with this? help
ask ko lng po kung pano gamitin ang rfid need po kc namin sa thesis project namin
wala po kc akong background on hardware more on software based po kami
hi, good morning ... I got an error regarding with the
system.windows.forms.control.checkforïllêgâlcrossthreadcalls = false
control it says checkforïllêgâlcrossthreadcalls is not a member... what is wrong with this? help
hi, good morning ... I got an error regarding with the
system.windows.forms.control.checkforïllêgâlcrossthreadcalls = false
control it says checkforïllêgâlcrossthreadcalls is not a member... what is wrong with this? help
Thank you po for the above code. I would just like to ask if the same code still works no matter what frequency my RFID operates or are there any differences po and what are those differences. RFID newbie here