How to tell central devices apart?

[AndersF]

Hello.

I am running ble_app_uart altered to allow for connection of two central devices.

The connection of two devices work fine.

Upon each connected central, I can tell the connections apart if I make m_conn_handle into an array of 2, I guess.

Haven't done this yes, but that should not be a problem.

I can then connect two devices and call them instance 0 and instance 1.

But can I tell what kind of central they are?

For instance: if I, in any order, connect an iPhone and an Android phone (both running nRF toolbox) how do I know that connection instance 0 is an Android and not an iPhone?

Thanks.

Anders

[Kenneth]

Hi,

You can separate peers with the connection handle as you describe yes.

I am not aware of any built in feature in BLE that can identify a peer automatically, however you may for instance add a proprietary characteristic that the app running on the peer can write to after connection is established to identify itself. Think this would be the preferred option. Alternatively you can do a database discovery of the peer, however I would not expect that you could get any reliable information from this without doing this for many vendors and versions, this could also change if they update the peer.

Kenneth

[AndersF]

Thanks very much.

The proprietary characteristic seems the best way to go.