Vb.net bluetooth serial-port bluetooth-lowenergy. Share improve this question follow edited Dec 6 '16 at 14:24. 594 4 4 silver badges 19 19 bronze badges. Asked Nov 25 '16 at 1:40. Emlinux Emlinux. 11 9 9 bronze badges. Add a comment 2 Answers Active Oldest Votes. This COM port (the one that appears next to the Serial Port (SPP) option) is the COM port to use in your example code. You can also use a Serial Port Monitor application, such as Termite, to connect to the STM32 device. How to use a built-in Bluetooth module on a PC for the VB.NET examples.

Vb Serial Port Read
Vb Net Bluetooth Serial Portal

Version 3.0 Beta, September 2010

32feet.NET — User’s Guide................................................................................................................................... 1

Supported hardware and software.................................................................................................................. 1

Broadcom/Widcomm................................................................................................................................... 2

Multi-stack support............................................................................................................................................ 2

Referencing the library....................................................................................................................................... 3

VisualBasic samples........................................................................................................................................... 3

OBEX — object transfer................................................................................................................................... 3

Behaviour from servers................................................................................................................................ 4

Server side....................................................................................................................................................... 4

Brecham.Obex............................................................................................................................................... 5

General Bluetooth data connections............................................................................................................... 5

Discovery........................................................................................................................................................ 5

DeviceName and discovery......................................................................................................................... 6

Server side....................................................................................................................................................... 6

Errors................................................................................................................................................................ 6

Stream.Read and the number of bytes returned..................................................................................... 7

The Connected property and connection loss.......................................................................................... 7

Connecting to Bluetooth services.................................................................................................................... 7

General IrDA connections................................................................................................................................. 8

Bluetooth settings, device information etc..................................................................................................... 8

Peer Device information............................................................................................................................... 8

Local Radio information............................................................................................................................. 8

Bluetooth Serial Ports......................................................................................................................................... 9

Getting virtual COM port names for remote Bluetooth devices........................................................... 9

Bluetooth Security............................................................................................................................................ 10

Bluetooth SDP — Service Discovery Protocol............................................................................................ 11

Creating Records......................................................................................................................................... 11

Connect by Service Name......................................................................................................................... 12

Manual record creation.............................................................................................................................. 12

There are generally four ways an application might want to use Bluetooth:

1. Make a direct data connection

Where the program connects directly to a Bluetooth RFCOMM service, and sends and receives the raw data for that connection. The server side function can also be provided. See section “General Bluetooth data connections” below.

2. Do an OBEX transfer

Where the program is an OBEX client and connects to a server, and sends (PUTs) or GETs a file/object. The server side function can also be provided. See section “OBEX” below.

3. Have the Bluetooth stack and/or the OS connect to and use a remote service

Common services for this case are where the service is Headset/Handsfree/A2DP, or networking for instance. Here we do not want the program to connect directly to those services, as we wouldn’t know what to do with the raw bytes, but instead want the OS to send audio to the headset, or form a network connection with an access-point or similar. See section “Connecting to Bluetooth services” below.

4. Make a direct data connection using the L2CAP protocol

Where the program connects directly to a Bluetooth L2CAP service, and sends and receives the raw data for that connection. This is not supported currently.

See http://www.alanjmcf.me.uk/comms/bluetooth/Bluetooth Profiles and 32feet.NET.html for information on what services use which method.

For device discovery see the section under “General Bluetooth data connections” below.

Supported hardware and software

The library is supported both in a version for desktop Windows, and a version for NETCF v2.0. On both platforms various companies have provided software protocol stack software to use Bluetooth hardware. For instance, on desktop Windows there are well known stacks from Microsoft, Widcomm (now Broadcom), BlueSoleil and Toshiba. On CE platforms there are also stacks from Microsoft and Widcomm/Broadcom. To visually identify which stack is installed see http://www.peterfoot.net/VisuallyIdentifyYourBluetoothStack.aspx. On both platforms we have long standing support for the Microsoft stack, and we have new support for the Broadcom/Widcomm stack again on both platforms. We’d like to support the BlueSoleil stack but are looking for funding to do so, contact Alan if you need support for this stack.

On a device where there is no Bluetooth hardware connected or a non-Microsoft stack is present the library will obviously not function. Opening a socket will fail with an exception and getting the list of local radios (BluetoothRadio.AllRadios) will return a zero length array, and getting the primary radio (BluetoothRadio.PrimaryRadio) will return null/Nothing, thus code like the following will fail with a NullReferenceException.

BluetoothRadio.PrimaryRadio.Mode = RadioMode.Discoverable

On desktop Windows it is generally possible to disable the third-party stack and install the Microsoft stack. The document Belkin F8T012 and Microsoft Stack downloadable from http://32feet.net/files/folders/1118/download.aspx describes how to install the Microsoft stack, and also includes the steps necessary to install a Bluetooth device that Windows wasn’t originally aware of.

On machines with the Toshiba software, from Add/Remove programs remove Bluetooth Stack for Windows by Toshiba, then run the C:TOSHIBAMS_BluetoothBtMon2Inst.exe installer to install the BT monitor, and finally reboot the machine, whereupon the system will detect the radio and install the necessary Microsoft

Vb Net Bluetooth Serial Port