https://devzone.nordicsemi.com/f/nordic-q-a/21542/pheripheral-advertisingI&#39;m using s110 pheripheral mode in my application. I want it to be in sleep mode and do not advertise untill a central want to connect it. Is it possible, when a central start scan my pheripheral device read it and start advertising without any gpio interrupten-USTelligent Community 13Fri, 21 Apr 2017 21:32:03 GMThttps://devzone.nordicsemi.com/thread/84582?ContentTypeID=1Fri, 21 Apr 2017 21:32:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e32d3fbf-fc05-4b04-8689-96ee747888cdendnode<p>There is no way to detect any scanning if there is no advertisment. That&#39;s how BLE is designed by specification, any active scanning or conenction request packet can only come in very narrow window (150us) after some ADV_xxx packet.</p><div style="clear:both;"></div>