serialport

  1. E

    Help with my Serial Port Code

    I'm having a problem about closing the port, because everytime i close the port, my program freezes. Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click, Button2.TextChanged, RichTextBox2.TextChanged Try If...
  2. Min Ha Jin

    Question SerialPort no reaction

    I have been testing the SerialPort communications. The packet format STX + M + ENQ + ETX + BCC My coding SerialPort1.Open() Dim b(4) As Byte b(0) = &H2 'STX b(1) = CByte(Asc("M")) b(2) = &H5 'ENQ b(3) = &H3 'ETX Dim bcc As Byte...
  3. S

    Question DLL Files and Usage

    Hi Ladies and Gents, I am new to VS2012, and used VB6 eons ago. I have been asked to create a program to record serial data and audio data (from Multiple sources). I was wondering if a DLL is the way to go and if it can do what i need it to. Firstly i need a DLL to record the serial data to...
  4. V

    Question Please Help - Access to COM1 denied

    Hello I don't know where the Problem is but i can't connect to COM1 with VB.Net With Hyperterminal i can connect so the port insn't in use. Can you help me correcting this code? Thank you vbcom PS: Full Code in Attachment Private Sub SendData() On Error GoTo hilfe Dim...
  5. S

    Question Problems with application locking up

    Hi, I have created an application with 3 terminal windows for capturing data from 3 serial ports and outputting the data to a file. It seems to work well with one serial port, but when I fire all 3 serial ports at once, the application hangs. Here is the portion of the code that I believe is the...
  6. M

    Datareceived Serialport event stops raising after some seconds

    Hi, I was hoping someone could help me out with this problem. I have a system (VB .NET) where I must read a person's weight (RS232 Sluice) and id (Fingerprint - 2 biometric reader, rs232) and compare it to a database. I have 3 serialports in my app, one for the sluice and the other 2 are to...
  7. J

    Question ComPorts and Threading?

    If this is not the right forum for this question, then please point me in the right direction. I'm brand new to Visual Basic 2008 (just started with it 5-6 weeks ago) and I'm pretty stuck. I've managed to learn enough to develop a small program that reads the ASCII "sentences" from my GPS...
  8. B

    Hyper Terminal through two serial port

    Hi, I am trying to communicate Visual Basic program (Visual Studio 2005) with Hyper Terminal through two serial ports assigned. I have made a program in VB which sends some numbers on serial port. When, these numbers are transferred over another computer’s Com Port and HyperTerminal it prints...
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