Sending Multiple Commands To A Serial Ports?
Aug 24, 2010
I am creating an application to configure some modems through the serial port. I have no problem sending a single string of data to the serial port and displaying the immediate response to a rich text box. I have 2 problems
1st: how to update the rich text box for any delayed response from the modem
2nd: how to react to the response from the modem, in other words I want to send the next command based on the response from the modem witch is usually "OK"
This is what my code looks like currently to send ans receive data from the serial port. (sport1 is my serial port and display is my rich text box)
sPort1.Write("AT+WOPEN=1" + Environment.NewLine)
With Display
.AppendText(sPort1.ReadExisting())
[Code].....
View 1 Replies
ADVERTISEMENT
Feb 13, 2012
while making my irc bot i need to send many different irc commands such as join channel, change mode, kick user message, topic channel message and so on. All these commands are currently process individually in a public sub on the irc connection thread.
Public Sub Write(ByVal command As String)
_streamWriter.WriteLine(command)
_streamWriter.Flush()
[Code]....
Would you have a load of public sub's to handle each or maybe something else?
View 2 Replies
Feb 19, 2009
What is the best way of communicating with Serial ports and TCP/IP communcation using vb.net?Using visual studio .net can we make it easier?? Can anyone send me sample application of communications?If I write a program communicating with my hardware using Searial port or TCP/IP, will the program be slow?? Are there any programming techniques working with communication ports?
View 1 Replies
Dec 20, 2010
is there any other way to access a serial port using visual basic.net 2010? i followed the steps in this site, How to access serial and parallel ports by using Visual Basic .NET but i just got this output Open the serial port. Send the attention command to the modem. Wait for data to come back to the serial port...
[Code]...
View 2 Replies
Jun 6, 2011
I'm fairly new to Visual Basic (VB), but I've already got running code to access all my serial port. The problem is I want to load multiple serial ports into an array and loop through them in my functions. The program allows me to create ports(), but fails when I try to populate it.
Dim ports As IO.Ports.SerialPorts()
ports(0) = SerialPort1
Where SerialPort1 is an object I draged from the Visual Studio toolbox.
View 2 Replies
Apr 24, 2010
I'm learning the serial port programming. So, I study the code samples from MSDN - VB101SamplesBCL2 http:[url].....While ran the solution of "UsingTheSerialPort", It shows error: It highlights one sentence textBox2.Text = SerialPort1.ReadLine() -- Line 40 ,and says :
"InvalidOperationException was unhandled - Cross-thread operation not valid: Control 'textBox2' accessed from a thread other than the thread it was created on."
View 1 Replies
Oct 19, 2011
I would like to know if there is a way that I can read what a program sends to a device when connected to a comport.
I work with cell phones. I use a few programs like CDMA Workshop, QPST, QXDM, and Many more to communicate with these devices and program them as I need for each cellular carrier. We call this flashing or provisioning.
I would like to create my own program that I can have it send the commands and write to the device what I need to write.
Obviously I know exactly what I need to write to it but I have no idea what commands to use other than using the programs that already have those commands for me.
So for example when I click READ for the NAM on the program, the program automatically reads the name for me. I just want to know how do I read what commands are being sent. Is there a way to listen to the ports?
View 3 Replies
Apr 20, 2009
able to open and utilize a single serial port within with my VB 2008 program (i.e., set port parameters, open&close port, send&receive data via port, etc.), but I want to open two or more serial ports concurrently within my VB 2008 program so that I can read data from one port, say COM1, make decisions and calculations based on that data, and send instructions out through another port, say COM2.
View 1 Replies
Aug 8, 2009
I am still new in programming. I am an electrical engineer. I have to read the time from GPS from one serial port apend this time to a data got from other device serially.
View 1 Replies
Dec 17, 2010
I want to know if there is a way to refresh a combo box when a new serial port becomes available.[code]
View 2 Replies
Jun 2, 2009
VS 2008: Send commands to a local UDP port. The port is 5975. Let me know if im being to vague or you need more info.
View 3 Replies
Jul 22, 2009
I'm wondering how I could monitor a serial port for a voltage change or contact closure and have an event triggered when there is a detection.
View 1 Replies
Sep 7, 2009
I'm reasonably proficient with VB but never had any expirence with communicating with hardware. I have a piece of software that communicates with a Eurotherm 3216 process controller via RS232, but its use is fairly restricted what it can do.What I want to be able to do is take the communication from the software and redistribute it to THREE Eurotherm 3216 controllers, so my software would intercept the comms and effectively emulate the Eurotherm.
View 5 Replies
Jun 29, 2009
I have the following code to create an array of serial ports.
[Code]...
View 5 Replies
Jan 11, 2009
I am writing a windows gui front-end for a game that uses 6 open cmd console windows. The cmd windows are already open, I do not need to launch them, I just need to be able to send a command to a named cmd window by pressing a button on my Visual Basic 2005 Express form.
[Code]....
View 3 Replies
Jan 12, 2011
How can I send commands to LAN Printer?
View 5 Replies
Sep 3, 2011
I'm writing a program in VB.NET 2010 that will connect to the PICkit(TM) 1 FLASH Starter Kit's USB programmer and send it commands to turn on or off something connected to the attached eLab16m board, for example, an LED. This is all done by using the libhid.net DLL. The vendor id is &H4D8 and the product id is &H32.
Update I've written a console program that outputs what's happening. Here's the output:Where it says device with report id 0x10, I am trying to query the firmware version from the USB Programmer.Update 2 I've fixed the problem with the Wacom Bamboo tablet by uninstalling its software and drivers from my computer. The error has disappeared from the command line, but it still shows the 0x10 error.
View 1 Replies
Jun 24, 2011
Is it possible to send DOS commands, using VB 2008, from one server to another server on the network? Perhaps using the process class?
View 1 Replies
May 1, 2010
What I need to be able to do is send a command across a specific network port (eg. 2124) to a specific ip address. I already have writen the recieving code (for the iPhone os) and accepts commands like:
filefound("Name of file",filetype,size)
All this is to be sent in plain text and once received the iPhone will then send a command like:
nextfile()
View 1 Replies
Jan 25, 2010
Dim movie As String = TextBox1.Text
Dim subtitle As String = TextBox2.Text
Dim box As New Process
box.StartInfo.FileName = "MP4Box.exe"
[code].....
When i click a button this code is executed. But it wont execute the command "MP4Box.exe -ttxt " + """" + subtitle + """" Why?
View 7 Replies
Jun 10, 2009
i need help on that. My app is able to debug and execute successfully. But the problem is after i click on the send button, a msg box shows message successfully sent.However the recipient did not receive the msg at all.This is the code below:
[Code]...
View 5 Replies
Feb 15, 2012
I need to build an forms app that 'posts' or 'sends' text commands to an external console process, called Minecraft Server It is a java-based process, filename 'minecraft_server.jar'. Run by my computer via 'java -Xmx1024M -Xms1024M -jar minecraft_server.jar nogui'. The Process ID I assume would change each time it's run. This process can be downloaded here: [URL]
I am guessing that I need to:
1) find the Process ID for it, based on its process details, such as Command Line
2) figure out a way to 'post' these commands, commands such as "stop" into the console window
I cannot have this process launched by my VB project.
View 5 Replies
May 5, 2011
How do I send XML commands in vb to get data received over a serial Port?
I know the commands I'm just not sure how to send them.
View 2 Replies
Jul 9, 2007
I have a VB2005 application that sends and recieves data with another application (3rd party, not vb 2005) via COM port. When I run the apps on different computers they work great, they send all data to eachother and everything is fine. When I run them both on the same computer with either virtual null modem ports or with 2 hardware ports connected together via null modem cable they stop communicating.
[Code]....
View 5 Replies
Apr 19, 2011
I Need to be able to read an unknown number of serial ports (I plan to limit the number to 10). I'd like to use a datareceived handeler for all of them. This is what I came up with, that seems to work with my test ports. However I'm wondering if thiscould cause any problems if more data is received than I'm currently testing with. It is possible that one or two ports will be transmitting 16 records per second each. Here is the code I'm testing with:
[code]...
View 2 Replies
Apr 12, 2009
I have a USB modem that can detect caller ID and can detect dialled digits when special AT commands activated, How to send and receive data. The sent data will be the AT command such as AT+VCID-1 to activate the caller ID, the received data will be caller ID information and the digits dialed. I'm new to prgramming and using Visual Basic 2008 Express.
View 8 Replies
Feb 24, 2011
Have several USB RFID readers that use keyboard wedge to pass info to MS Excel. That works ok. However I want to have the ID of the USB reader (port) that it came from for each read.
Need to intercept the 'read' going to the keyboard wedge and insert a USB ID number. Any reference ok as long as unique to each USB RFID reader .
View 11 Replies
Oct 28, 2010
There are a lot of USB devices that collect data and setting them up as a keyboard wedge is one of the easiest ways to do it. That said, I really do not want them set up as active all the time. So is there a way to set up multiple keyboard
wedge USB devices and then through code turn them on or off. For instance, using a scanner I want to read an ID card. However once the ID has been read, I want to turn off the ID scanner so that it will not be used in the wrong field on a
different screen. Perhaps on a different screen I want to read a Credit Card set up as a wedge input device but only when I am in the correct field for the input. So in this case i would have two wedge devices
Perhaps a different way to phrase the question is, "can I set up multiple USB keyboards and through VB.net turn them off and on?
View 4 Replies
Feb 20, 2011
what is wrong with my code and I get no feedback from my button click event, i have imported. ( code Below) and i have tied differrent combinations of the code without sucess.maybe add extra to my code for the list to show open Port or closed ports.
Imports System.Management
Imports System.Management.ManagementObjectSearcher
Imports System.Management.ManagementNamedValueCollection[code].....
View 9 Replies
May 31, 2011
I am using the following code to enumerate through com ports to determine if the attached modems are in use.When I get to my usb modem, it returns the correct "PostIsAvailable" status, but then it kind of locks up the modem and I get the following error when I try to manually query the modem I get: "The modem failed to respond. Make sure it is properly connected and turned on. If it is an internal modem, or is connected, verify that the interupt for the port is properly set."I either have to manually requery the modem or unplug/plug it again.This code works fine on my external serial modem, but not the USB modem.
Public Function PortIsAvailable(ByVal port As String) As Boolean
Dim TempPort As New SerialPort
TempPort.PortName = port [code]......
View 5 Replies
