https://devzone.nordicsemi.com/f/nordic-q-a/5129/does-a-nrf51822-beacon-recognize-that-it-is-in-range-of-a-smartphoneHello, my idea is to turn on a GPIO-Pin of the NRF51822-Beacon-Kit when my smartphone found the beacon. Of course if the smartphone is out of range or far away the pin should turn off again. So my question is: Does the Beacon recognize in any wayen-USTelligent Community 13Wed, 14 Jan 2015 11:01:01 GMThttps://devzone.nordicsemi.com/thread/18005?ContentTypeID=1Wed, 14 Jan 2015 11:01:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:604a2060-ef1c-4c74-84c0-013e78056820Stefan Birnir Sverrisson<p>Hi</p> <p>A beacon device is a non-connectable broadcasting device, which means it is constantly in advertising mode and will not receive any packets. The non-connectable broadcasting mode is defined with</p> <pre><code>m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_NONCONN_IND; </code></pre> <p>in advertising_init() function. An idea is to change this to be a scannable advertising:</p> <pre><code>m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_SCAN_IND; </code></pre> <p>which will allow the device to listen for scan requests from a central. That way, you could <a href="https://devzone.nordicsemi.com/question/7476/how-to-get-rssi/">enable RSSI</a> at the same time to detect the signal strength from the central device.</p> <p><strong>Update 14.1.2014</strong> I must correct myself. For current S110 softdevice version (S110 v7.1.0) the device must be connected in order for the application to receive RSSI event from the softdevice.</p><div style="clear:both;"></div>