https://devzone.nordicsemi.com/f/nordic-q-a/311/fun-game-project-2-4-ghz-rf-nrf24lu1-feasabilityHi, we would like to create a kind of game using 2.4Ghz emitters . The 2.4Ghz USB Dongle emits and the mobile phone detects the frequency + embed unique ID/code so we confirm if the person has been there ;-). No cheating ! Attached is our concept soen-USTelligent Community 13Tue, 20 Aug 2013 06:38:59 GMThttps://devzone.nordicsemi.com/thread/1645?ContentTypeID=1Tue, 20 Aug 2013 06:38:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6c4c90da-1be6-4436-8f05-3c60ceac42ceOle Morten<p>I see that you write in your document that this has to work with both WiFi and BLE off, and this is simply not possible, at least not through the regular APIs that iOS exposes to applications.</p> <p>However, if you can live with requiring Bluetooth to be on, the project should be doable with Bluetooth low energy based tags, for example employing our nRF51822.</p><div style="clear:both;"></div>