https://devzone.nordicsemi.com/f/nordic-q-a/14471/nrf51822-to-transmit-beacon-upon-user-signalHello I plan to use two Bluefruit LE Micro devices that contain the nrf51822 as BLE beacons. I also plan to use a BLE receiver (on another arduino) to receive the beacons and also be the home automation hub. for my application, I need the BLE beaconsen-USTelligent Community 13Tue, 14 Jun 2016 06:41:24 GMThttps://devzone.nordicsemi.com/thread/55261?ContentTypeID=1Tue, 14 Jun 2016 06:41:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e3529ec8-3148-467b-a250-c263773c888eFormerMember<p>In order to synchronize the beacons, they will have to be connected some how, either by wire or by a BLE connection.</p> <p>BLE connection between the beacons: When using S130, a device can have multiple roles simultaneously, a device can for instance be a central and/or peripheral together with broadcaster (advertising, beacon). In your case, one of the beacons can be master+broadcaster and the other can be a slave+broadcaster. The master beacon can for instance be triggered to start advertising upon a user request. If the master beacon starts to advertise, it will advertise for a given time (advertising timeout). When it has finished advertising, it can for instance write to a characteristic in the slave beacon, to trigger the slave beacon to start advertising.</p> <p>Is there a reason why the two beacons cannot advertise at the same time? It is not any problem for a central to detect multiple advertising devices at the same time.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/55262?ContentTypeID=1Tue, 14 Jun 2016 05:46:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1ff32514-90ad-48d5-be73-43f748cf7158RichieJH<p>Yes, it is possible to start broadcasting on input/event. They won&#39;t transmit at the same time even if you tried.</p><div style="clear:both;"></div>