Broadcast with custom UUID

RE: Broadcast with custom UUID

Nuno Lourenco — Thu, 08 Aug 2013 10:56:57 GMT

Nice tip, that might work! Thank you.

RE: Broadcast with custom UUID

Ulrich Myhre — Thu, 08 Aug 2013 10:54:30 GMT

Yes, the spec is not yet covering this yet. Until it is in you could probably make use of the "Manufacturer specific data" field (See Core Spec V4.0, Vol. 3, Part C, 11.1.4) to advertise your data.

RE: Broadcast with custom UUID

Nuno Lourenco — Thu, 08 Aug 2013 06:45:11 GMT

Hi Ulrich,

Thank you for the tip. I think I can now understand how to do it! :) However, there is a lack in the standard when it comes to this... If you take a look at the Supplement to Bluetooth Core Specification, page 20 (Data types definitions and formats), section 1.11 SERVICE DATA only makes reference to 16 bits UUIDs. And we should not convert them... I have also taken a look at some other examples online and many people use 16 bits UUIDs that are "still not defined" (eg. 0xFFE0). Good to know that with this stack we can use the full 128 bits!

regards

RE: Broadcast with custom UUID

Ulrich Myhre — Thu, 08 Aug 2013 06:25:53 GMT

Hi,

Could this similar question and solution work for you?

https://devzone.nordicsemi.com/index.php/i-m-having-trouble-advertising-a-vs-service

Just remember the size restrictions! :)