https://devzone.nordicsemi.com/f/nordic-q-a/27350/how-to-reinitialize-advertisingHello, I use nrf51822 , sdk 8.0.0, s110 I defined advertise interval and timeout #define APP_ADV_INTERVAL 320 #define APP_ADV_TIMEOUT_IN_SECONDS 3 Also, I write advertising init function at below; static void advertising_init(void) en-USTelligent Community 13Mon, 20 Nov 2017 12:49:41 GMThttps://devzone.nordicsemi.com/thread/108017?ContentTypeID=1Mon, 20 Nov 2017 12:49:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e15bb3d6-da76-4ee1-a6e0-6719ed9d16d2Joakim Jakobsen<p>Hi Purgoufr!</p> <p>If the interval is set to 1 second and the timeout is set to 180 seconds, the device will advertise every second for 180 seconds, and then timeout (i.e stop advertising).</p> <p>In most of the BLE peripheral examples, the SDK is set up to advertise for 180s and then stop until button 1 is pressed.<br /> You can disable this timeout by setting the <code>APP_ADV_TIMEOUT_IN_SECONDS</code> to 0. This will make your device advertise until told not to.<br /> You can start/stop advertising by using the <code>sd_ble_gap_adv_stop()</code> / <code>sd_ble_gap_adv_start()</code> functions.</p> <p>You should be able to change the code to stop/start advertising on another event, i.e using a timer.</p> <p>Best regards,<br /> Joakim.</p><div style="clear:both;"></div>