Get Info From A Scale Using An RS232 Cable Into A VB2010 Program
Oct 28, 2010
So I am trying to get info from a scale using an RS232 cable into a VB2010 program. But before we even start talking about that, I don't know ANYTHING about serial ports. I need to learn how to get the data from the scale without programming first... I am using Win7. I do have a sample program (w/ source) I downloaded [URL]) It runs without any errors, then I have a big USER error, what do I push? How do I tinker to figure out the right settings on this interface? or any interface. These are the sittings for the scale: [URL] I am considering returning my scale and getting something with maybe USB on it, I need to be able to weight things up 100lbs, I am shipping car parts.
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Jan 17, 2009
I am doing wrong? I am using VB2008/VB.NET to send a command (set to 4 volts) to a Tenma DC Power Supply over an RS232 cable. I don't have documentation from Tenma that lists the commands that the instrument understands, I got "VOLT040" from a program in an older version of VB that someone else wrote for this instrument. The code is below:
[Code]...
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Oct 18, 2010
I have developed a microprocessor based devise. It can communicate with laptop through RS232 as a VB application. Now most of laptops have USB port only. So I want to use USB replacing RS232 port on laptop side but not change anything on the device side. Can I do this using a USB-RS232 converter? How to change the VB software?
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Aug 31, 2009
I chose Visual Basic 8 as a computer interface to communicate through RS232 (serial) to my microcontroller, which in turn will do its own thing to transmit data it receives from the VB GUI through wireless
I have used VB before but it's been a long time. I looked at some of the settings and it looks like it has a SerialPort com component I can use. Will it suffice for this project?Might be a simple question, but just want some tips from experienced developers.
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Apr 15, 2010
I need to create a program that sends & receives data via rs232. I have done it many times in VB6 with easy.
Why is so hard in vs2008?
I managed to send (or so I think). Because I can see the LEDs flashing on my board connected to the pc. But I do not get any response back from the board.
The reason I do it in vs2008, is because I need the program to run on a PDA. But to understand how rs232 works in vs2008, I just created a simple program for the pc to talk to my board.
for example, I send:
SerialPort1.Write(Chr(2) & "I" & Chr(3)) and I expect back (into a textbox), a hex string 25 characters long.
The board also send data to rs232 sometimes, without me requesting it.
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Mar 12, 2012
Somebody know how I can read data from a device connected rs232?Im write it in a text box?
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Sep 12, 2011
Is it possible to create a stand alone program with VB2010?
I mean, without any presence of an OS, the program will still work...
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Oct 7, 2011
I am new to the Forum and I hope this is the best location for this thread.I SEARCHed a few threads, but did not see quite what I was after.I am interested in how to make VB 2010 create a NEW COPY of my current project, with a NEW project Folder, New Name, but a copy of all of my forms and modules.
I see that VB 2010 puts my new projects in their own folder in Libraries/Documents/Visual Studio 2010 /Projects.As an example, I am working on a project, and have it a partially completed, partially working mode, and want to save this version before I go on making further additions and modifications to it.
I want the New Version to be the same as the current version, but I don't want any changes made to effect the older version.I could manually copy the current project's folder, but I am not sure what all of the sub folders and files do, or point to, or would otherwise have to be changed.
I'm NOT looking to track each change made in the project. I just want to occassionally have a backup version I can fall back on.I have several VB 2010 texts, but they don't seem to address this question.
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Jan 26, 2010
In VB2010 Beta 2, after program development, how do I deploy (or create a solution to), programs I have written? Also, how can I change the folder where VB 2010 looks for my help documentation Hope someone can help. I've been an on-again off-again programmer for years, but 2010 just makes my head spin a little...
As far as the solution creation, I've already tried clicking on Project-->Publish, which more or less seems like it wants to upload to a website rather than be stuck on my HD... I don't want to upload to the web;the whole reason I want to export is that I want to think I remember at one time having read something about the about box labels only displaying the new information you stick in them once the program has been turned into a .exe file, but I'm not sure; although now that I've run into this problem of creating solutions, even w/ this little bit of a program (nowhere near complete, something like a sure-to-be-crappy-take on Mass Effect 2.. it's primarily text based); heck, for that matter just about all I write programs for is because "hey.. it's enjoyable... umm... kind of" -- I originally started in college as a Computer Science major, switched to Music, transferred schools, the school I transferred to didn't think I had the skills they look for in incoming students, and from there switched to spanish major.
____, just about all I'd be good for is playing music and localization projects (both in and out of the game industry). Not so sure I'll get anywhere, but I said "what the heck, I'll upload my resume to EA".
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Nov 22, 2010
Is there a command or couple of code lines that will pause the running program for one or two seconds?
I have a program that checks the system time every 250milliseconds and I need to skip checking it three times the first time it comes back with ":00" seconds from the system clock.
Or another option would be to reset the timer to 1000 and then back to 250...
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Jun 24, 2009
I have a device that communicates with the pc via a serial to usb cable. So I have made windows form with a serial communication to speak with it. The communication is every 125ms so every time it checks if the com port is open and sends the new message. The problem is that if the usb is not connected the program tries every 125 ms to connect to the serial port and the busy cursor appears always and the form is not responding to any action (for example enter into the menu or refresh a listbox). I have tried multiple times to connect and disconnect the usb while the program is running. That's mean that the serial connection stopped and started all over again several time. The problem is that occasionally it shows an error "unable to open com port".
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Sep 19, 2011
Is it possible to make a program with visual basic 2010 that does not use the actual form but instead only uses other components (e.g. Message Box) to form a complete program?
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Nov 5, 2011
I finished my application whith vb2010, this application uses a Access database. I have a problem because when I install my application he put database in de same path "program files" and this path is only read And my application crahed. I know how to installer put database in other path but I don't know how to tell my application to find this database,
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Nov 1, 2009
I am having trouble getting the total due for businesses to calculate correctly. Especially when I run the program and alter the amount of connections or the number of premium channels.
[Code]...
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Apr 20, 2009
I need to get data from 2 databases namely cable and History. The results obtained from it will be display in a datagridview. MyCommand is a sql statement i wrote. However,i have errors in it. The codes are as followed.
Dim dbset As New DataSet
Dim data As New OleDbDataAdapter
data = New OleDbDataAdapter(MyCommand)
[code]....
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Sep 6, 2009
After upgrading code to VS2010, the error "MSB3134: The permission set requested by the application exceeded the permissions allowed by the Internet or Intranet zones. Select Full Trust or to continue using partial trust, define your custom permission set in the Security Page of the Project Designer. Bentley Software Loader". The same code ran fine in VS 2008
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Feb 1, 2012
I have database in MS Access and this is Embedded to my program in VB2010 this is a Product Database now I try to create a reminder about my product expiration date
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Jun 30, 2011
Using arrow keys to move a shape also changes the value of trackbars elsewhere in the program?
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Apr 5, 2010
I would like to detect the insertion, and completion of installation of a USB cable in VB2008 as two separate events. The driver gets installed prior to insertion of the cable.
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Oct 9, 2009
i would like to ask is there a method which i can read a specific file from another computer??i would like to use IP address to specify the address.
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May 21, 2012
i want to make a little program that virtually REplugs my internet cable.
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Aug 2, 2011
I have o problem on my codes sqldr = sqlcmd.ExecuteReader when i debug the program error says ExecuteReader requires an open and available Connection. The connection's current state is closed. i dont know what its means that error..
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Oct 8, 2010
Is it possible to toggle the D+/D- signals of the USB port to activate a relay
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Sep 4, 2009
I have a VB.net app running on one computer, displaying text into 2 texboxes or labels.I need to see the two values in two sperate textboxes or labels from the two labels on another computer via a null modem serial adapter.
1st computer.
Code:
serialport1.writeline(label1.txt)
straight forward right?
2nd computer to read the data
Code:
Private Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
dim s as new string = serialport1.readline()
label1.text = s
This is what I was thinking;
Code:
serialport.writeline(label1.text & label2.text
This would send the two values over the serial port. How would I seperate the two values and display them in two different texboxes?cannot use them together)Am I on the right path at all? Or using the serialport.writeline method won't work at all....
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Oct 9, 2009
I was wondering, i have smtp mail adress and password (for gmail*) and it is probably very easy to read it when opened with hex editor or decompiled so i want to encode/crypt that info in my program to make it almost (i know it isnt possible to make it fully unreadable) unreadable and/or make my program undecompilable
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Aug 21, 2009
How could I make a program that goes soemthing like this
1. I open program
2. I log in with my user and pass (User doesnt have to be case sensative)
3. A form shows up where I can store Usernames to differnt things
4. It gets saved into the form
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Sep 14, 2011
I need to display info about each of the 50 states when selected in my program. I have one combobox with all the states as items inside, one button that you click to get the info and one listview for displaying the info. Here is my code so far:
Imports System.Text.RegularExpressions
Public Class Form1
Private Function getinfo(ByVal state As String)
[Code]....
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Feb 12, 2011
Is there any way to make a program that gets data from the input site (like the javascript: Time left:, and the bidding page)
my goal is to make a program that will bid your maximum input using your credentials at the last minute... i hate loosing bids...
is this even possible with vb express 2010?
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Mar 24, 2011
i am trying to make a program that holds info in the settings... it holds it in an array so that you can add to it and take away from it... he is the code i have so far....
So far it is just the adding part but im still haveing some problems...
Public Class Form1
Public Function array_use1(ByVal array_string As String, ByVal number As Integer)
Dim num_holder As Integer = number
[Code].....
im trying to get this done so i can demonstrate how it works to some friends.
And also note that i dont want you to like write out a bunch of code then tell me its the right way...
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Jun 30, 2009
When you click a button, i want the program to send info's from 3 textboxes and one richtextbox. Public Sub Email(ByVal Subject1 As String, ByVal Body1 As String, ByVal ToAdd As String, ByVal Acc As String, ByVal Pass As String)'(Subject,Body, Email to be sent to,Email account, Password)Dim smtpServer As New SmtpClient Dim mail As New MailMessage
[Code]...
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