https://devzone.nordicsemi.com/f/nordic-q-a/115838/about-extended-advertisingI am considering software that uses nRF52840, where one side will send advertisements and the other side will scan and obtain data from advertisements. I am considering a method of sending advertisements by adding the data I want to communicate to MANUFACTURERen-USTelligent Community 13Fri, 25 Oct 2024 13:30:52 GMThttps://devzone.nordicsemi.com/thread/507962?ContentTypeID=1Fri, 25 Oct 2024 13:30:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:759ccfb2-5052-42ce-849a-01e11e8dd559Simonr<p>Hi</p> <p>I don&#39;t think extended advertising would be necessary here. You can also use<a href="https://devzone.nordicsemi.com/f/nordic-q-a/100119/can-i-only-beacon-broadcast-scan-response-data-only-and-not-advertisement-response-data/427666"> scan response data</a> to transmit an additional 31 bytes after the initial advertisement where you can add these 26 bytes of data if you want, but that would be entirely up to you. Please note that nRF5 SDK v17.0.0 should not be used, and SDK v17.0.2 was released as a patch for this SDK version to fix some crucial issues with the 17.0.0 release.</p> <p>Extended advertising should not affect a NUS connection at all. You can use the function&nbsp;<a href="https://docs.nordicsemi.com/bundle/sdk_nrf5_v17.1.0/page/structble_adv_modes_config_t.html"><strong>ble_adv_extended_enabled</strong></a>&nbsp;to enable extended advertising and refer to the Bluetooth advertising module for general guidance.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>