Multiple services in GATT profile with Zephyr OS

[bem22]

I was able to follow the tutorials from academy.nordicsemi.com on bluetooth fundamentals but unfortunately, I could not find an example where more than one custom service is advertised to the client.

I understand that the maximum advertising packet is 31 bytes, but the UUID is 16 bytes so two or more won't fit in the advertising packet - but this could be exposed later. How?

[runsiv]

Hi, 

I recommend looking into this sample for multiple service advertising 

Regards

Runar

[bem22]

Oh, I understand.

So that 31 bytes is really the limit.

I would like to know whether there is a different method of discovering the services post connection to the device - much like how the characteristics get discovered. I realized that I don't need the services to be discovered during advertising - but just have them as a structural hierarchy. What do you think?

[runsiv]

I think our academy can describe this better then I, so I would have a look here. 

bem22 said:

I would like to know whether there is a different method of discovering the services post connection to the device

At this point you already have the information, you just need to read it out.

Regards

Runar

[bem22]

I'm sorry to say but your comment passes as very shallow

I've run through the course myself and it's unclear whether I could expose multiple services. The course/academy does not cover multiple services or even hint at multiple service discovery so this is why I'm coming here.

To come back to the problem at hand, I'm trying to understand how can I implement this for my development and how Sony managed it to do in those headphones where there appear to be 11 services after connection:

Am I really asking for too much here?

[runsiv]

I'm sorry I was not able to provide the service that would be able to be off help. 
I will give the feedback regarding how service discovery to the course makers. It would  be helpful since the documentation is to be honest, not the easiest to navigate, and a single sentence would make everything more clear. I tried to see if I could find any good explanations in our documentation but I was not able to find it

Regards

Runar