there is a complex situation wherein, I have to pass a string data to a .exe application and this .exe application would process the string and respond back to my php data. I prefer not to use a TCP/IP connection.
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I need to write an application for receiving data (ascii characters) from microcontroller through the serial port in three separate parts. I've created three RichTextBoxes, but I do not know which commands I need to type. In first textbox I need to receive one byte... next six bytes need to be placed in second text box, and finally last seven bytes need to be placed in third textbox.
View 11 RepliesI am working on an application that has a Winforms and MVC3 Web component. We need to be able upload large files from the desktop to the web. I have tried the various VB 2010 WebClient and FTP FileUpload alternatives but continue to run into permission issues, even though the User-ID and password I supply are the same as those used by an FTP application that successfully copies files to the same MVC3 site. In my efforts to find alternative solutions, I have looked into using WCF which also seems complicated and problematic for this particular application.
The closest I have come to a solution utilizes HttpWebRequest on the Winforms application. The following VB 2010 and C# code (MVC3) successfully passes the Filename and File data to MVC3 (the InputStream contains the references and UrlEncode data, but the class containing the fields for this data are null. (I have also passed just the file data without the filename, and the uploaded file is successfully created from the InputStream - but the method variable is still null). Although I could pick apart the InputStream, I would prefer a more elegant alternative.
VB 2010 Winforms method:
Public Shared Sub FileUpload(ByVal Filepath As String)
Try
Dim Host = System.Configuration.ConfigurationManager.AppSettings("Host")
Dim url As String = Path.Combine(Host, "UI/FileUpload")
Dim request As HttpWebRequest = HttpWebRequest.Create(url)
request.Method = "POST"
[Code] .....
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
I have a small program which is a tcp client. I send a string from this client to a device over ethernet (it acts as the tcp server). As soon as the device recieves the input string it will respond back with response data. My problem is i am not getting the entire response data back from the server. (device).
Dim serverStream As NetworkStream = clientSocket2.GetStream()
Dim outStream As Byte() = System.Text.Encoding.ASCII.GetBytes("my-cmd")
serverStream.Write(outStream, 0, outStream.Length)
[code]....
i am working on a project. Part of the project requires me to receive SMSes through VB.net windows application, the following below are codes i have done up till now. I am using a modem to receive the SMS and i am able to connect to it through using of serial port, and also a textbox to display the received SMS but when a SMS is received through my modem but it is not displayed on the textbox, can anyone help me check what is wrong with my codes?
[Code]...
I am doing a project on sending and receiving sms. I am doing this using the visual studios 2005 ans SQL Server Database to store the send or received sms. I have search on sms in the internet but the problem is that it is using C# as I am using the vb.net language. Even though some of the research that i came across is in vb.net but the application did not work.
In my research, the sending and receiving of sms application uses sms gateway, AT command. But I am not sure which one to use becoz I am doing this application for my project. Hope for any recommendation on which one to use either the sms gateway or AT command or any other device. My lecturer said that my project is most likely like the M2U Mozat. Not only that I am doing the sms but also the email. The email part is done by my partner but the problem is that he creates the email using the SMTP server. How can using a SMTP server to create sms? It is because the part that I am doing which is the sms and the email to combine together.
I believe I have found a solution! I will be continuing testing to make sure it DOES in fact work, but I'm hopeful :) I have detailed how I found the solution in EDIT THREE of the question.
For anyone wishing to know the full background behind my problem and what I have kind of tried as a result of input from this question, see this: [url]
I will be editing this frequently (>3 times a day most weekdays) as I progress my research and situation, so keep checking back if you are interested or have some information or knowledge of my issue :)
Quick Background:
I have this app I have made that can be crashed by changing my screen saver or locking my work station, and in general whenever a WM_WININICHANGE/WM_SETTINGSCHANGE message is sent to it.
If I can consistently crash my app by changing my screensaver, then SOME part of doing that is sending my app SOME kind of message (not necessarily a windows message, I mean message in the most general sense), which in turn is catastrophic to my application. Due to this, I am trying to find a way to block whatever message is causing my problem from being processed by my application. I am aware this isn't the best way to go about a solution, so you don't need to tell me. Look at the backgroung info or ask why if that bothers you (there is a good reason).
I am currently developing an SMS application to read and receive SMS. I run the application and tried to send an SMS and the application indicates that the message is successfully sent. However the recipient did not receive the SMS. I am using Sony Ericsson T610 btw.
Imports System
Imports System.Threading
Imports System.ComponentModel
Imports System.IO.Ports
Public Class Form1
[Code] .....
I Need a simple project which is developed in Microsoft Visual Studio 2005 in VB.net the project features are
1. I have to send multiple SMS from a mobile device connected through a USB.
2. I have to receive SMS from a mobile device and parse it and store it into various text file.
I Need a simple project which is developed in Microsoft Visual Studio 2005 in VB.net the project features are
1. I have to send multiple SMS from a mobile device connected through a USB.
2. I have to receive SMS from a mobile device and parse it and store it to SQL Server
I can handle with the rest of requirements of My University Final Project.
I'm writting what I thought would be a fairly simple TAPI program in VB.Net 2008 SP1 using the TAPI3Lib.dll. It is supposed to dial out a number and once connected play a wav file then wait for digit input. I got through the dialing but it seems I never get the CS_CONNECTED event letting me know the line was picked up. All I get is CS_INPROGRESS then the call is placed and a CS_DISSCONNECTED if I call the call.disconnect method.
I've double checked my registering for events and my event filter and they both check out (otherwise I wouldn't get the two call states I do get). Is there anything else I'm missing or is this normal? I'm calling out with a Conexant HDA D330 MDC V.92 Modem. The call is correctly placed, my phone rings and I answer it. The call state never changes to connected. If I hang up my phone you hear me hang up through the modem and you then hear a dial tone since the modem in the computer hasn't hung up.
Actually my project is based on rfid. The transmitter sends data to the remote reciever that is attached to the pc through USB. Now i have to design a VB.net interface for the recieved data.I dont know how to program and get data from USB and utilize it. I only have to receive the data and not to send.
View 14 RepliesIm woundering how does Receiving/Sending data work in a TCPClient/Server that is connected in the same networkstream.
View 4 Repliesi am working on 3rd party chat software, when ever i send data to server i get incorrect buffersize of data. like when i convert that data to hex to matching header for splitting data i got huge lengths data
in the above textbox of image i have got some 0000000000000000000.... with the hex data, how can i get only only original data. The code i have used to receive data is
[Code]...
Currently I had write a simple VB code, my aim is when i click "Forward" button then the vb will send a character "A" to PIC, "Reverse" button will send "B" so I write my vb code for sending as below:
Dim Forward As Char = "A"
SerialPort1.Open()
SerialPort1.Write(Forward)
For the receiving part, after I received the data from PIC then I will show it at the label which act it as a screen. the receiving code as below:
SerialPort1.Open()
receive = SerialPort1.ReadChar()
If receive = "A" Then[code]....
I am working on system support for an electronics project wherein I have to receive an 8 bit (binary) data through a USB port and store either the binary or the corresponding decimal into a variable. How can I implement this in visual basic 2010?
View 11 RepliesI have made this code:
Dim tcpClient As New System.Net.Sockets.TcpClient()
tcpClient.Connect("usuarios.lycos.es", 80)
[Code]...
I got a CRC checksum now and I get a Message in this Format SOH, Length Of Incoming Message, Message, CRC Checksum So I have a nice little look to processes the message and everything, Now I have questions on two events, While this loop is running it awaits for Data on the wire to come through and Checks for the SOH, I always get that but what are the chances of NOT getting a SOH, and if I don't what should I do with the Buffer Dump everything Till I come to another SOH? And on another scenario If two Packets are clashed together in one buffer should I always try to Peek and see if the Next byte after the CRC is a SOH to see if there is more Bytes and an whole another command to start Parsing and then take action?
View 4 RepliesI'm using the following code to get newsgroups from a server[code]...
When I execute the code, the routine only receives one block of the data. However, if I go into debug mode with a breakpoint at the loop instruction, I receive all of the blocks of data.Am I missing something in the code, like a wait or something, that would allow the program to receive all data like happens with the debug?
I'm using the following code to get newsgroups from a server:
sendBytes = Encoding.ASCII.GetBytes("LIST active microsoft.public*" & ControlChars.CrLf)
networkStream.Write(sendBytes, 0, sendBytes.Length)
[code].....
i was not getting o/p properly when i tried to receive data from serial port using the following code.
Public Class form1
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If SerialPort1.IsOpen Then
[code]....
I am making aproject in vb6 with MScomm. Computer A connected with a device on serial port. I can receive the data from serial port in a text box. Computer A can also dial cmputer B to make connection. But it is unable to send data on modem or computer B is unable to receive data from modem.Here is the code for sending and receiving computers1- Computer A
Option Explicit
'button to open data port to receive from device
Private Sub cmdOpen_Click()
[code].....
I have a program that receives serial data from a microcontroller and displays it.If I use windows terminal I get the right data.For some reason my program is not displaying the right data.What is sent is temperature.So the actual data is 24 degreesC and my program is showing 10 degreesC.
Private
Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
[code]....
I am working on a client/server application. Everything seems to go well for a while (a few hrs, a few mins its kind of random) then suddenly clients stop receiving data. maybe 1 or two, or all of them. in the end I end up having to restart the server piece to resolve it, but I am trying to understand why its doing this. I've added try catches around the send piece, but it doesnt error out. When the app fires, the listener is started on its own thread. When a new connection is made, that connection is passed to a class that handles all of my connection data(send/receive, responding to commands, etc). The class is started in its own thread, so each connection is running in its own memory space. This issue seems to happen with 1 client connected, or 20, it doesn't really seem to matter.
This causes other issues, like a customer who thinks he is disconnected, will shut down his app, which is supposed to send a command to close the connection on the server side which it does not., so now I have several "closed" connections still open on the server, which is obviously also bad. Another thing I dont get is that it worked fine when I was developing the pieces on my dev box, so I dont get why I have all of these "timeout" issues now. (I put that in quotes, because the timeout period is the default of 10 mins, and I xmit data, at LEAST every minute when the server pushes data updates to all clients)
Here is some of the relevant code
vb
'Command Object, this holds all of the command information being passed back and forth to tell the server what to do, and as well as hold the response.
'The strCMD is the command, strParms is the parameters of the command, obj is ANY object I want to send along with this information
<Serializable()> Public Structure CommandData
Public strCMD As String
[Code] .....
How to increase speed of receiving data through GPRS? We connect through UDP Protocol and sync method for receiving DATA. Can you suggest me to best way to communicate with GPRS? [Code]
View 3 RepliesDoes anyone knows how to program using vb.net with rs232 module?, all i know is that i should use a compolet, but i can't understand a thing regarding the sending and receiving bit data to the machine..
View 1 RepliesI'm trying to control a serial port device that both send and receives data. I can receive data quite happily from the serial port but I don't appear to be able to send data to the device. The device works perfectly as I can test it using putty, I open putty select serial and select 1200 baud, the device immediately lights up and can send and receive. However when the port is set up and opened in VB the device doesn't light up so I can't send data to it but can receive data from it. According to the instructions I need to send either ASCII 'X' Hex '$58' or Decimal '88' to make the device ready.
Code (VB Studio 2005) :-
Public Sub New(ByVal synchronisingObject As ISynchronizeInvoke)
ComPortUsed = My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINESoftwareNJB", "COMUSED", Nothing)
PricePerTrack = My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINESoftwareNJB", "PRICETRACK", Nothing)
Me.synchronisingObject = synchronisingObject
[Code] .....
I am developing an application which is pretty much a replacement of a hyperterminal. I am trying to send commands to the serial port using MSComm in VB6.0 When I type in on the hyperterminal h003128 I get a response OK. Or when I type in i003 it displays back some values.
What I am trying to figure out how do I send the h003128 via VB6. I believe I've undertood how to send data to the port. It seems I am not getting the correct formate. This wont work.. the formate iAAADDD where i = i AAA = 003 and DDD = 128 MSComm1.Output "i003128"
Opening and closing the port works fine, and as far as i can tell, the serial.write("blahblah") should be writing to the output buffer, but I am unable to test or verify this by reading it in. the commented "Receive data from serial port" and subsequent DoUpdate() function are where i am having trouble. It doesnt seem to actually be reading in the data if it is in fact writing it correctly.
[Code]...
