How to get the 128-bit UUID of a peer device characteristic

Question

I want to get the 128 characteristic UUID of the peer device during the connection phase. Now I use SDK is 15.3, the softdevice is 6.1, and only 16-bit UUIDs are obtained in the "discovery_start ()" code during the connection phase. How can I get the customization on the peer device Or SIG's 128-bit characteristic UUID?

Jared · Answer

Hi, 
 Google translate of your reply:

"Hi, I need to get the 128-bit service UUID of the peer device during service discovery when connecting the device. Without knowing what service UUID the other party has, make sure it is a 128-bit service UUID. You said sd_ble_gattc_attr_info_discover (), how to use it? I found no data in p_attr_info_disc_rsp_evt, when should I use sd_ble_gattc_attr_info_discover () to get the data. When should I extract the data and look forward to your reply".

A BLE_GATTC_EVT_ATTR_INFO_DISC_RSP event will be generated when the attributes have been received, the event structure will contain a ble_gattc_evt_attr_info_disc_rsp_t that contains your 128-bit UUID. You only need to pass the handle of your connection. 
 
 regards 
 Jared

How to get the 128-bit UUID of a peer device characteristic

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