How to read in data from an arduino bluetooth microcontroller? I am new to microcontrollers and I have limited VB experience. The arduino is currently outputting some data to the arduino software screen. I have opened the COM port for the arduino in VB but am unsure how to get the data into a VB string.
View 3 RepliesI am currently having problem receiving data from Arduino via Bluetooth, and display the results on Visual Studio Professional 2010. All I want to do is to receive sensor readings from Arduino which is send to the computer via bluetooth, and to be displayed on Visual Studio..
Private Sub ButtonDisconnect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonDisconnect.Click
SerialPort1.Close()
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i have encountered a problem, i want to access the data coming to the computer from the in-built bluetooth module of a computer on windows platform, this data has been sent by a remote bluetooth module say a by an autonomous device (just like a bluetooth mouse connecting to the computer). The to be sent is in the form of numbers and i need these to manipulate on the computer.
View 6 RepliesTo send serial data from Arduino Mega 2560 to a VB.Net PGM, then the VB.NET pgm will read data then send to via FSUIPC (an Addin DLL) to ms flight simm 2004.OK that said here is the question: how can I write or phrase or construct the proper syntex needed to 1-limit the data sent,or in reading the data-limit the data read?I have enclosed the VB.NET code and the Arduino code. Please take a look. I am very new to both,but I try hard. all the code works but I get strange all most random data in VB. The FSUIPC end works OK, I can send to and receive from Ok.It's the VB pgm that gets the data wrong some of the time. say 8 out of 10 it is OK then button x will also turn on or off another check box then do what was aked. It seems that I am not clearing the receive buffer so I get a last chr sent before.I have tryed readline, readexisting,readbyte but I don't know how to phrase or construct any but the readline. I have tryed to flush the buffer in both codes but, well I am stuck. [code]
View 4 Repliesis it possible to communicate with a bluetooth device? I have a fairly simple heart rate monitor which has a USB stick, which connects wirelessly to the monitor.
It utilizes a serial port (COM3), where I can communicate with it. I've tried all sorts of data formats to parse the incoming bytes, from ASCII to INT32 to string... Nothing.
I have a project to read the data from Window Mobile phone 6.5. I want to send the data from handy to laptop via bluetooth. I try out to find samples but it rarely hard to find.
View 8 RepliesTrying to read data through the virtual COM port created by bluetooth.
The original console program (and the trimmed version below) was designed to read data from serial port COM1 and output the data to notepad. The program works; hook the bar code reader to COM1, activate bar code reader, swipe card, bar code reader beeps, data input collected from COM1 and sent out to notepad.
The problem: Bluetooth is wanted instead of serial cable.
We disconnected the serial cable, we connected a USB bluetooth receiving device onto the XP. XP installed the bluetooth device drivers 'Generic Bluetooth Radio' and 'MS Bluetooth Enumerator'. Bluetooth detected the bar code reader device and created COM5 outgoing SPP slave and created COM6 incoming.
But now; activate bar code reader, swipe card, bar code reader beeps, NO data input collected from COM5.
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I simply cannot refer to a control on a form from module code as in all other versions of VB. Here is the code that I mean:[code]The fact that this cannot seemingly be done without getting into looping through an array of controls, assigning the control to a general control variable etc. and much more guff is puzzling and is in my opinion an added complexity to Visual Basic. There must be a simple way to do this - I just want to refer to the value in a control, on a form, from a module.
View 13 RepliesOn sending data over bluetooth from PC to my mobile(N73), the Input Stream seems to hang up.InputStream is derived from StreamConnection.Does the InputStream have an internal buffer that needs to be emptied while reading large chunks of data?Data is being received in chunks of 10Kb to 15Kb range, and the reading stops after receiving the 3rd chunk.
View 1 RepliesI've been messing around with the Arduino Mega for a while. (Doing a bunch of the small tutorials and the project "Secret door knock detector", Google it for more info) I understand how it hangs together, the programming and outputs, inputs and all, but I can't write anything of my own.
What I want to do is to use Visual Basic to make my own program that can send "a, b, c, d, or e" and so on, by clicking on buttons. Like they do here : arduino.cc/en/Tutorial/SwitchCase2 - only without Serial Monitor.
Example: I click a picture of a lightbulb in VB and a relay turns on lightsource. So I sorta want to send a or b or c and so on with pictures to controll different relays.
I have a problem with something.I have a Arduino board I wan't to communicate with by serialport.
In "Form1", I'll retrieve values from the Arduino board, and I want it to calculate and display data in TextBoxes.How can I do this?[code...]
i just got 1 question how do u create a (in excel ) variable table (database) inside a function which could be called for filling and reading through "for to next" loop module
View 2 RepliesI've inherited some code that has a Public Module for data access:
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And all the pages call GetDataSet(sql). Am I correct is assuming that this is a bad idea? Worst case is that concurrent callers could get each others data?
I'm basically trying to send a string that I make in a module to a textbox on a form.[code...]
View 2 RepliesHow could I call a module or something else to return data to me after its ran. I don't want to make my form1 code all messy.
Public Function Test() As String
Return "Tes34t"
End Function
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I'm working with a form that has five combo boxs, when the form loads it goes to the modQuotations where there is a public sub that loads the comboboxs with data from a database but it after its done loading the form there is nothing in the combo boxs. [code]..
View 8 RepliesI've been coding a Windows applicaton for the past seven months but there aren't a lot of "windows" in the application so I have a question on getting and returning data from forms. I display a form and the user makes a listbox selection then presses Ok. Normally I can proceed from there (in a class module) with values from the config file, but sometimes his selection will require me to ask for more information. So I want the class to display a form, pass control to it, then when the user hits OK on this form, return to the class. What is happening is the class continues with all its inline code and function calls and doesn't show the form until the end of its current function.
Dim flClientInputFile As New CFile
Dim flPreparedOutputFile As New CFile
Dim lRecordCount As Long
Dim sProcessing As String
Dim sTest As String
Dim frmAbc As New frmAbc
frmAbc.Show()
frmAbc.Activate()
x()
When I run and step through this code, I find I'm in x() before I even saw the form. x() needs the data the user has entered on frmAbc in order to continue.
how we can declare a connectionstring in a module and call that module
View 1 RepliesI have an ArrayList that is set to Friend. Once I click my button "abc" is added to the ArrayList and then the form MsgBoxes out the Count of 1 (Correct).When I use Threadpool to count the number of objects within the ArrayList it always returns 0.
Example:
Imports System.Threading
Public Class Form1
Friend Alphabet As New ArrayList
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I am obviously getting some sort of cross-thread issue here but have no idea how to correct this. I usually just setup single threads so this is my first time playing with ThreadPool & already lost at step 1!
Finally starting some coding in VB.Net, I notice over the years, that we can say (in VB6)
Code: Dim MyForm_Stock as NEW frmStock
in the same session, being able to open, say 3 Stock Forms at the same time and maintain details independently of each of the other forms. Also am I able to maintain separate Database connections and the same table being opened and updated independently of each other by each separate form. What is actually taking place in terms of memory being used by each process? My ultimate goal is to be able to have ONE Module with all the possible data Connection and Recordset Opening and closing options, which I have failed miserably to do in my VB6 experience. Data access is an obvious module based set of subroutines. Others could be Date routines eg, Week Number of the year, Days Diff, Days to, etc. [Code]
I have a modbus TCP device that I have managed to connected to through my VB source code.
I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).
Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
I am reading data from a socket (as bytes) and storing this data in a string. Then later i need to access specific bytes within the string and do some math with them. However the bytes that I read back from the string are not what I am expecting.
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I have a VB.Net interface that communicates with an Access 2k3 Database using this module:
Module MOD_ENGINE
'Declare Database connections controls
Dim con As New OleDb.OleDbConnection
Dim dbProvider, dbSource As String
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I want to call EngineConnect procedure from MOD_ENGINE module into popCboBox module so I can ignate the engine!
i got a app that needs to connect to a HID device.but every time i off my PC the pairing of the 2 (PC with the HID device) is gone. is there a way for VB to pair it ?
View 1 RepliesHow is the Bluetooth connection by Visual Basic Dot Net readers and text sent by the Bluetooth
View 2 RepliesI desgin an app that encoding text to sms format so you can after that sent this text to your mobile.ok now I want to know how can I send this file by bluetooth from my app
View 4 RepliesI am developing for my project is "Remote Control Winamp from Mobile with Bluetooth Connection".I have two applications to develop it. Application server with vb.net programming and application client with J2ME.[code]...
View 1 Repliesgot a good sample of using VB to get a list of Bluetooth devices? And to maybe send and receive a file.Also, I'm using VS2005. Is there any better Bluetooth resources available if I upgrade to VS2010?
View 6 RepliesWhere should you start when your next application was a bluetooth hotspot implementation?
View 1 Replies