https://devzone.nordicsemi.com/f/nordic-q-a/4525/s120-central-make-fast-connection-to-known-mac-addrHi I am trying to make a ble central with s120 on a pca10001 board. My problem is that it sometimes take a lot of time (up to 10 seconds) to find the client when i make a scan. The Clients mac address is known by the central before it start scanningen-USTelligent Community 13Thu, 20 Nov 2014 21:21:30 GMThttps://devzone.nordicsemi.com/thread/16045?ContentTypeID=1Thu, 20 Nov 2014 21:21:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:25c07391-ebcf-4079-8432-9e290c2d2f42vich<p>Hi Kristian,</p> <p>You use the sd_ble_gap_connect if you already know the bdaddr. I recommend that you don&#39;t use continuous scanning, but as example, if advertising at 20 ms, use a scan interval 50 ms with a 30 ms window. Refer to API documentation for details.</p> <p>Cheers, Vich</p><div style="clear:both;"></div>