bluetooth-communication

  • Thread starter Thread starter Marcus Gylling
  • Start date Start date
M

Marcus Gylling

Hello
I'm writing an application on an IPAQ 3970 that uses the bluetooth module to
communicate with a serial port adapter on another unit.
The application is written in Visual Basic .NET 2003. I'm using a com port
component, that works like the component in VB6, for this.

The two units are configured to always be connected. Is there any way to
check if they are connected from my VB application? For example by
contacting the Bluetooth manager.

/Marcus Gylling
 
I dont have a answer for your question,

but i would be intrested in that com port component waht you are using.

could you send it to me? (e-mail address removed)

Regards Michael
 
Hi,

Have you tried the CFSerialIO dll that you can download from my homepage?

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.
 
Perform a general Bluetooth device inquiry ("page scan")
to identify Bluetooth-enabled devices within proximity:
Only devices that are monitoring for paging will respond
Devices provide their address, name, type
Connect to a particular device and perform a service
discovery
Using SDP (Service Discovery Protocol)

Connect to a Bluetooth service using a profile:
SPP (Serial Port Profile) can be used be legacy
applications that (used to) rely on a COMx port, only the
COM port is controlled by Bluetooth and is virtual.
Connection to a Bluetooth service using a protocol:
RFCOMM
Custom application


Creating a SPP Connection

void CMyApp::bar()
{
// Create an SPP connection to a device whose
address and
// a specific service name have been previously
retrieved.
SPP_CLIENT_RETURN_CODE rc;

rc = CSppClient::CreateConnection(bd_addr,
service_name);
// rc is either SUCCESS or a BTW-CE DK error code

// A COM/SPP port (vport) is now available and
connected
// to the remove device bd_addr.
// NOTE: COM8 is preconfigured as an "outgoing
port" when
// installing BTW-CE
HANDLE hFile = CreateFile(_T("COM8:"), ...);

// Use regular WIN32 API to open the port,
transmit data, etc.
WriteFile(hFile, _T("Hello Bluetooth"), ...);
...

CloseHandle(hFile);

// Release the COM/SPP port for other apps to use
it.
CSppClient::RemoveConnection();
}

FOR MORE INFORMATION VISIT: http://www.widcomm.org

bluetooth devices built-in ipaqs are from WIDCOMM.

regards
Ronald Armas
MCSD
 
Yes i tried it,

but you know that i have the problem with the parity setting ;)

Regards

Michael Daniels aka Michael Brockhoff
 
Hi Michael,

Sorry, I didn't look at your name closely enough.

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.
 
Hi Marcus, I am just starting to learn how to develop
using the compact framework using bluetooth.... would it
be too much to ask if you could send me any information
you have on sources of good information regarding
bluetooth and the compact framework. I would love to see
the source code, just to understand the concepts. Thanks
in advance anyway

Mike
 
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