Ble central multi service ble_db_discovery_evt_register

[HugMantas]

I'm creating a ble central device that receives instructions via UART on which device to connect to and which UUID to write to.

I'm able to connect to a peripheral device.  But all the examples for central require  to run ble_db_discovery_evt_register(UUID) and then handles are assigned to peer_db.

i got sd_ble_gattc_char_value_by_uuid_read to work fine. but now i need to write to characteristic UUID. this requires DB to be setup with handles etc. Is there any way to dynamically assign handles to peer_db without hard coding those values?

I just need a strategy of how to go about discovering and adding handles to the DB without hard coding like that:

 windoor_evt.params.peer_db.state_handle = p_evt->params.discovered_db.charateristics[i].characteristic.handle_value;

hope that makes sense

thanks

[Sigurd]

Hi,

The handles are found during service discovery, then stored in the service peer_db strucutre for later use. What hardcoded values are you reffering to ? 

[HugMantas]

Yes but i dont want to be using handles i want to be using UUID like in the function: sd_ble_gattc_char_value_by_uuid_read 

is there a way to write to characteristic based on UUID not handle?

[Sigurd]

HugMantas said:

is there a way to write to characteristic based on UUID not handle?

 No, you need to know the handle to the attribute to be written. A very generic way to do this is shown in the ble_app_interactive example. (ble_m.c -> on_characteristics_discovery_rsp() function and cli_m.c cmd_char_write() function)

[HugMantas]

That was helpfull thanks