https://devzone.nordicsemi.com/f/nordic-q-a/5601/can-nrf51822-bluetooth-smart-beacon-kit-advertise-battery-levelHi there, I am quite new to BLE. I am about to buy a nRF51822 Bluetooth Smart Beacon Kit. But before that I would like to be sure if I am able to advertise battery level on beacon kit (after programming it somehow). I read all nrf51822 spec. Buten-USTelligent Community 13Tue, 17 Feb 2015 15:55:53 GMThttps://devzone.nordicsemi.com/thread/19620?ContentTypeID=1Tue, 17 Feb 2015 15:55:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:331296d1-4ba7-4d0f-b084-70c0d8189068Stefan Birnir Sverrisson<p>Hi</p> <p>There are two options on measuring the battery voltage with the nRF51, either with the ADC, or with the power-fail comparator, see nRF51 Series Reference Manual v3.0, section 12.1.9.</p> <p>The Beacon kit is tailored at sending beacons. If you intend to develop something more than just sending beacons, then I would recommend to purchase the nRF51 DK, which is much more flexible kit, still for a reasonable price.</p> <p>But yes, both the nRF Beacon kit and the nRF51 DK kit can advertise battery level. There are various <a href="https://github.com/NordicSemiconductor/nrf51-ADC-examples">ADC examples available on Nordic&#39;s Github page</a>. Use them to sample the battery level, then you update the advertising packet content with the battery level information.</p><div style="clear:both;"></div>