https://devzone.nordicsemi.com/f/nordic-q-a/5362/switching-to-another-centralI have a bluetooth hub (NRF51) as central and a wearable device (NRF51) as peripheral. What I need is that as soon as a smartphone enters the range the peripheral let&#39;s go of the hub and smartphone takes over the central role. Is this possible at allen-USTelligent Community 13Wed, 04 Feb 2015 17:48:50 GMThttps://devzone.nordicsemi.com/thread/18748?ContentTypeID=1Wed, 04 Feb 2015 17:48:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84469298-08b8-413b-8b17-edefeb360294Matty Sashi<p>Thanks Petter. This is a great set of solutions.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/18747?ContentTypeID=1Wed, 04 Feb 2015 12:41:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:75059f0f-4dad-4410-80f2-59d0db5e3513Petter Myhre<p>If the smart phone only can act as a central I believe the only option is to use the S130 in the hub. The hub can advertise while it keeps a connection with the wearable device. If it receives a connection request from the smart phone it disconnects from the wearable device. And then the smart phone can connect to the wearable device.</p> <p>If the smartphone can act as a peripheral you could use S130 in the wearable device, it can scan while it keeps a connection with the hub. If it finds an advertising smart phone it can keep both connections, or disconnect with the hub.</p> <p>If your hub only has one peripheral connected to it, you could use S110 in the hub and S130 in the wearable device. The wearable device can advertise while keeping a connection with the hub, and disconnect from it if it gets a connection request from a smart phone.</p> <p>Please let me know if anything is unclear.</p><div style="clear:both;"></div>