Bluetooth Sockets using RFCOMM

[REAL!]

Hi

I am working on a project that requires LabVIEW to communicate with a Raspberry Pi over Bluetooth. The Pi is running Python and using PyBluez for the Bluetooth side.

Preferably LabVIEW will connect to the Pi using a Bluetooth Socket over RFCOMM, however I cannot find a way of opening a socket in LabVIEW, only a channel. Using the RFCOMM VI's build in to LabVIEW I am able to see the Pi (the MAC and device name are found) but not connect to it.

Does anyone know if this is even possible? I am currently using LabVIEW 2013 but upgrading to a later version is an option if this support is included.

Cheers,

Darren. 

[JosephP · Accepted solution]

Hi DazzaNL,

Are you trying to use LabVIEW as a Server or a Client? If you are using LabVIEW as a Client you should be able to use the Bluetooth Open Connection VI to connect to a Server.

The locations of the examples for Bluetooth that ship with LabVIEW are given in this White Paper and include an example of using LabVIEW as a Server:

https://www.ni.com/en/support/documentation/supplemental/06/developing-bluetooth-applications-with-l...

Hope this helps you,

[REAL!]

Hi Joe,

Thank you for your reply.

LabVIEW is used as the client for this project.

I have seen the white paper you link to, however I didn't see the part on finding the channel number using the RFCOMM Service Discovery vi.

I will check this and then post back with the progress!

Cheers,

Darren.

[REAL!]

Hi Joe,

Using the details in the white paper (as well as a bit of trial and error) it was possible to do what I needed.

Thanks for pointing me in the right direction!

Cheers,

Darren.