Eddystone URL

[huybk213]

Hi everyone,

I'm trying to understand Eddystone example in NRF5 SDK.
I'm successfully run example ble_app_eddystone. I also edit Eddystone URL from mobile app.
I don't know what function is called in NRF5 SDK when mobile send new URL.
Please help me figure out.

Thank you so much!

   

[ketil]

Hi Tran,

If you are looking specifically for information regarding Eddystone URLs we have a simpler Eddystone example which was available in earlier SDKs. This will show you how to format the advertisement packet.

Please let me know if you find this example helpful. If not I can take a closer look at the complete Eddystone example which you are currently working with.

Ketil

[huybk213]

Thank you Ketil for your help,

I'm currently using NRF5 SDK newest version 14.2.0
Eddystone example i'm working is ble_app_eddystone.
 
I want to find the function which was called when mobilephone send new URL. I'm reading document at here, but i cannot find that function.

Please help me, thank you! 

[ketil]

Hi Tran,

The documentation for the Eddystone example in SDK 14.2 is here.

More detailed documentation on functions and structs is available in the source code.

To answer your question, all write requests are handled by the es_gatts_handle_write() function. For the URL the sequence looks like this:

1. es_gatts_handle_write()
2. es_gatts_write_handle_unlocked_write()
   1. case BLE_UUID_ESCS_RW_ADV_SLOT_CHAR:
3. es_slot_on_write()
4. configure_slot()
   1. case ES_FRAME_TYPE_URL:

Ketil

[Nijat]

Hi, Ketil, I came out a question after seeing this thread.

Can we create or configure a service using code? I mean what is the es_gatts_handle_write() used for ?

I am thinking we only can create Service and Characteristics using tools like MCP.

[ketil]

Hi Nijat,

Do you want to create a custom service? In that case I recommend the Custom Service Tutorial.

Ketil