BLE notification on nRF52833

RE: BLE notification on nRF52833

Amanda Hsieh — Fri, 12 Feb 2021 10:25:49 GMT

Hi,

Sorry for the delay. The latest question is away from the original post and is answered in this post.

-Amanda H.

RE: BLE notification on nRF52833

Katie Newell — Mon, 08 Feb 2021 10:02:14 GMT

Hi Amanda,

I'd like to trigger the notification event internally in the server firmware. Is this possible? I basically wish to write into the CCCD value as the client does and get this condition equal to TRUE.

 if ((p_evt_write->handle == p_cus->custom_value_handles.cccd_handle)
        && (p_evt_write->len == 2)

Thanks a lot for your help

Regards

RE: BLE notification on nRF52833

Katie Newell — Fri, 05 Feb 2021 13:52:51 GMT

Thank you so much. I works.

I'd like to enable notification in the firmware and not from the app. Is that possible? If yes, how would I set the event to update the data? Is there an example I can study to understand how the events handling works?

Many thanks

Regards

RE: BLE notification on nRF52833

Amanda Hsieh — Fri, 05 Feb 2021 13:45:57 GMT

Hi,

Enable notification in the app by pressing as

-Amanda H.

RE: BLE notification on nRF52833

Katie Newell — Fri, 05 Feb 2021 13:18:58 GMT

Hi Amanda,

Thanks for your answer.

Apologies, I didn't mention that I am using the desktop app.

I enable notification by setting the Client Characteristic Configuration Descriptor to x00 01.

Regards

RE: BLE notification on nRF52833

Amanda Hsieh — Fri, 05 Feb 2021 13:12:35 GMT

Hi,

[quote user=""]The issue I have, the condition (ble_srv_is_notification_enabled(p_evt_write->data)) is never TRUE so I am not able to enable notification. [/quote]

Did you enable notification on the app by pressing in the app as the following figure?

-Amanda H.