Central(nRF52833) discovering the one service, two characteristics and two descriptors(CCCD) of peripheral(nRF52810)

[Yedida_Gangadhar]

Hi all,

Goal is central have to discover the one service, two chars, two descriptors(CCCD with UUID 0x2902).and enable notification for two chars. I am able to discover service, chars, descriptors and their respective handles. I am able to enable notifications only after discovering all descriptors. But the problem is I want to differentiate descriptor handles. I can't differentiate because the both descriptor handles have the same UUID (0x2902). I am observing this pattern service disc response, char disc response, char disc response, desc disc response, desc disc response.

My questions are :

1. Can we have different UUID for descriptors(CCCD)? If so please tell me how to proceed further

2. Is their any way of finding/mapping to characteristics based on descriptor handle?(mean particular descriptor handle belongs to this characteristic)

Regards

Gangadhar

[Sigurd]

Hi!

The Client Characteristic Configuration descriptor may occur in any position within the characteristic definition after the Characteristic Value. See this figure:

The UUID is predefined by the Bluetooth specification as 0x2902, and can not be changed.