How to modify the advertising example to get my own private beacon ?

[jgc]

I am using an nRF52DK kit, SDK V11.0.0 and SoftDevice S132 V2.0.0. I have found an advertising example on the site github.com/.../nrf51-ble-tutorial-advertising. I have modified the address type to BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE ( & set BLE_GAP_ADDR_CYCLE_MODE_AUTO). Then I have changed the advertising_init() funciton to send 14 bytes of my own data and 6 bytes of short name. But I am a beginner in nrf52832 programming and I completely do not know which data/parameters I need to change to get:

1. advertising time: each 5 seconds (neverending)
2. the advertising address change in each transmission (implementation of a private IRK table). And in which module I must update my own data field to send it ? Please, help me as quickly as possible.

[Joakim Jakobsen]

Hi JGC!

Where you able to solve your problem with the links provided in the comments above?

As Matt pointed to, the tutorials is a great place to start, especially the
Bluetooth low energy Advertising, a beginner's tutorial
Bluetooth low energy Services, a beginner's tutorial
Bluetooth low energy Characteristics, a beginner's tutorial

This post should provide the answer to advertise "neverending"

Let me know if you still are facing any problems.
Best regards,
Joakim.

[jgc]

Hi Joakim !

Thank you for your answer. The post "advertise nrf52840 unlimitedly" answers one of my questions. My beacon should:

Wake up. Read I2C BUS to get some data. Update my advertising frame: 14 bytes. Recount my advertising address (RANDOM_PRIVATE_RESOLVABLE) using my private algorithm. Send advertising frame. Go sleep for 5 seconds I still do not know where is a proper place to implement reading I2C BUS, change data in my frame and update advertising address.

Best regards, have a nice evening,

Jarek (JGC)

[Joakim Jakobsen]

Hi again jgc.
We have I2C examples in our SDK, and I would suggest that you take a look at those to learn more.
How to update your advertising packet should be explained very well in the advertising tutorial I linked to.
The advertising tutorial also covers the RANDOM_PRIVATE_RESOLVABLE.

If you still face problems after taking a look at these, you can open a new question with more specific information about what you have tried, and what the problem is.
Uploading code, and other relevant information would be very helpful to solve your problem.

Best regards.