Extended Advertising

[Junichi]

I am thinking of using nRF52832 as both transmitter and receiver, and creating a firmware where the transmitter adds the acquired data to the Manufacturer Specific Data of the advertisement, and the receiver side extracts the desired data from the advertisement data.

Until now, the data that was not allowed in the Manufacturer Specific Data was 7 bytes, but this time I want to send about 40 bytes, and since the value added to the advertisement data changes in a short time, I do not want to send additional data, so I would like to communicate using extended advertising.

Please tell me how to send extended advertising and how to receive extended advertising.

If additional settings are required in sdk_config.h, please tell me the contents.

If possible, a sample source would be helpful.

[SwRa]

Hello,

To use extended advertising in NCS (nRF Connect SDK), you can follow these steps:

1. Create an extended advertising set using bt_le_ext_adv_create() function.
2. Set the advertising data using bt_le_ext_adv_set_data().
3. Start the extended advertising using bt_le_ext_adv_start().

It has been discussed in this ticket here as well:  Handling of mixed Advertising and Extended Advertising 

Moreover, you could refer the periodic adv sample under zephyr which is a good example of BLE extended advertising: https://github.com/nrfconnect/sdk-zephyr/tree/v3.7.99-ncs1-branch/samples/bluetooth/periodic_sync 

You could also take a look at this sample: https://github.com/nrfconnect/sdk-nrf/tree/main/samples/bluetooth/peripheral_hr_coded 

Best Regards,

Swathy