How to name a (Central) device and get that (Central) BLE device name on a peripheral side after connecting to it?

[noob_123]

Hi,

I have one central and one peripheral devices running. Currently I run a scanning filter on Central side and connected to the peripheral with desired name. 

But now on peripheral side I want to read the name or any unique identity except MAC address of (Central device) in peripheral example when it gets connected to it. 

I know that central cannot advertise names or other things like a peripheral but is there a way to define a name or any other identifier on central side and read it on the peripheral side after establishing a connection. 

Thank you

[Einar Thorsrud]

Hi,

It is possible to achieve this, yes. The central can implement a GATT server with the Device Information Service (DIS), and the peripheral could include a GATT client with a DIS client. There is no DIS client implementation in the nRF Connect SDK though, so you would have to make that yourself (typically by looking at a GATT client implementation for another service to see how it is done).

[noob_123]

Yes I am able to add DIS in my central side and can see this on nrfConnect mobile app. But not sure how to get it on the peripheral side. 

Is there any example that you can refer to?

[Einar Thorsrud]

Hi,

As mentioned, it is possible but there is no support for it and no example of that in the SDK, so you will have to add support for it yourself. To be clear, the existing DIS server can be used in the central, but you will have to make a DIS client implementation yourself that you can use on the peripheral.