https://devzone.nordicsemi.com/f/nordic-q-a/8244/s130-connection-without-advertisingHello, Is that possible to connect to a device that is not advertising ? (a kind of wifi not send SSID) In my case I know what mac address to connect so it&#39;s useless and i want to have notifications (cannot run at same time than advertisements)en-USTelligent Community 13Tue, 21 Jul 2015 06:39:19 GMThttps://devzone.nordicsemi.com/thread/29727?ContentTypeID=1Tue, 21 Jul 2015 06:39:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a8a148c4-ee85-44b1-8085-4871a1555384Susheel Nuguru<p>Yes, advertiser can broadcast with non connectable mode, in that case it won&#39;t accept any connections. Yes you can, but i did not understand completely what you want to ask here</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/29726?ContentTypeID=1Fri, 17 Jul 2015 15:15:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7f8fe986-0105-485e-8f60-b8da5c065ec5Fabien Comte<p>Ok thank you for the fast answer. On my application I have connected and connectless links on the same device so can i use advertiser to broadcast something without expecting a connection ? Should i use a scanner to see all advertising packets around ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/29725?ContentTypeID=1Fri, 17 Jul 2015 15:06:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:28538311-3e11-4869-99c0-735fd72de46fSusheel Nuguru<p>No, Central cannot. It needs advertising packets to time to send the connection request.</p> <p>It cannot send packets to peripheral whenever it wants, because peripheral is not listening all the time. Even when peripheral is advertising, there are RADIO idle times.</p><div style="clear:both;"></div>