https://devzone.nordicsemi.com/f/nordic-q-a/96805/executing-code-during-advertisingHello, I am using the 52805 in a product and have achieved low power successfully. I have a final requirement that I am trying to solve and want to know if there is an event generated when the device is advertising, so that I can execute a timer functionen-USTelligent Community 13Mon, 20 Feb 2023 07:32:45 GMThttps://devzone.nordicsemi.com/thread/410792?ContentTypeID=1Mon, 20 Feb 2023 07:32:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:27957765-b073-4566-8b7e-94f1254f02ebKarl Ylvisaker<p>Hello,</p> [quote user=""]I have a final requirement that I am trying to solve and want to know if there is an event generated when the device is advertising[/quote] <p>You can use <a href="https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/radio_notif/radio_notif.html">the Radio Notifications</a>&nbsp;to know when radio activity is upcoming / finished radio event, and then use this to start your countdown.</p> [quote user=""]and the BLE time random interval should average out to zero over long time periods[/quote] <p>Are you here referring to the 0 - 10 ms added delay before each advertising?<br />If so, this will not average out to zero over time. If not, please elaborate on which random interval you are referring to here.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>