https://devzone.nordicsemi.com/f/nordic-q-a/6903/can-i-make-a-bidirectional-ble-device-from-nrf51822I need a BLE device that can broadcast codes/id to my android mobile app. Also, I need those codes be changed by once in a while by an admin app. Is this possible?en-USTelligent Community 13Wed, 06 May 2015 07:32:52 GMThttps://devzone.nordicsemi.com/thread/24339?ContentTypeID=1Wed, 06 May 2015 07:32:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:be2e9811-750f-4b1b-adcf-88af8a767eccshibshab<p>Yes, you would need to expose the field as a writable attribute in the broadcasters GATT database, and then make sure that the advertised data is updated with whatever is written to those attributes.</p><div style="clear:both;"></div>