Change Eddystone slot frame-type from application

[vittopascu]

Dear All,

I am trying to understand how I can change the frame type of an Eddystone slot at runtime directly from the application, so not connecting from the bluetooth mobile app. I am developing my application on top of the Eddystone example and I have seen how one can do this by default by changing the DEFAULT_FRAME_TYPE definition in the file "es_app_config.h". However I would like to be able to perform this operation at runtime.

I think I understand how to change tx power and even the frame data from the nrf_ble_es library, but not how to change the frame type. Can that be done at all?

Thank you very much.

[Sigurd]

Hi,

Everything the mobile app can do, should be possible to do directly from code as well. Take a look at the function es_gatts_write_handle_unlocked_write() in es_gatts_write.c, and the different functions in es_slot.c

[vittopascu]

Hi, thank you for your answer, the function es_slot_on_write() from es_slot.c does the trick. However I changed the SDK code a little so that I am able to feed an es_url_frame_t or es_uid_frame_t directly, without the need to remove the ranging data field.

[Slay]

Hi vittopascu, may I ask how you managed to do that? I'm trying to do the same thing here and added a call to es_slot_on_write from the main.c for slot 0 with the new frame data as I would like to send. I see that the call does reach the configure_slot function (small debug-print) but it ends up in reporting a Fatal error. Do I need to call extra functions to get this working properly?

[Slay]

I already figured it out. See this question for details:

https://devzone.nordicsemi.com/f/nordic-q-a/60080/changing-eddystone-beacon-frame-type-and-data