How to add multiple characteristics with different attributes?

RE: How to add multiple characteristics with different attributes?

RVM — Tue, 10 Jan 2023 23:26:49 GMT

Closing this ticket since I believe that my observations were very likely triggered by some other unrelated software design errors

RE: How to add multiple characteristics with different attributes?

Simonr — Tue, 05 Jul 2022 05:49:24 GMT

I suggest using the ble_app_blinky example project as reference here. Basically, during initialization you have a services_init() function where you set up the services/characteristics you want your GATT server to contain. This is done by calling sd_ble_gatts_service_add() and sd_ble_gatts_characteristic_add(). It's important that when you initialize a characteristic, the support notification you buffer the char_handle with is added in the sd_ble_gatts_characteristic_add() actually returns, since this char_handle is required every time you want to send notification data.

Best regards,

Simon

RE: How to add multiple characteristics with different attributes?

RVM — Fri, 01 Jul 2022 14:12:43 GMT

I have already reviewed that excellent tutorial and been using that as a basis for adding characteristics with 'identical' attributes.

My question is specific to multiple characteristics with 'different' attributes e.g. one read only and the other 'read-and-write'.

Cheers

RMV

RE: How to add multiple characteristics with different attributes?

Simonr — Fri, 01 Jul 2022 12:03:56 GMT

Please check out the Custom Service tutorial made by my colleague Edvin. The tutorial shows you how to create custom services with custom value characteristics.

Best regards,

Simon