https://devzone.nordicsemi.com/f/nordic-q-a/111344/how-to-measure-the-battery-level-using-nrf52840I am using NCS V2.6.0 and using zephyr there is no examples to measure battery level using saadc we can measure the battery level right? I used LEDs to indicate battery level. I connected sensor to nrf52840 and I am sending sensor values to bluetoothen-USTelligent Community 13Tue, 21 May 2024 08:05:29 GMThttps://devzone.nordicsemi.com/thread/484993?ContentTypeID=1Tue, 21 May 2024 08:05:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9b809927-49ea-438b-8fe7-93576dc7b20eAHaug<p>Hi,</p> <p>Here&#39;s a link to a sample in the Zephyr repository showcasing how to use the ADC infrastructure to measure voltage of a devices power supply:&nbsp;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/samples/boards/nrf/battery/README.html">https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/samples/boards/nrf/battery/README.html</a>. You should be able to use SAADC instead of ADC by making the changes below:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/84381/saadc-vs-adc">SAADC vs ADC</a>&nbsp;</p> <p>You can send Battery levels over BLE using the&nbsp;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/libraries/bluetooth_services/services/bas_client.html">GATT Battery Service Client</a>. See&nbsp;<a href="https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/">https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/</a>&nbsp;for how to set up services and how to exchange data in BLE</p> <p>Kind regards,<br />Andreas</p><div style="clear:both;"></div>