https://devzone.nordicsemi.com/f/nordic-q-a/16307/nrf52832-proxymity-battery-level-circuitGuys, I am designing a Bluetooth proximity tag using nrf52832 SoC. I have designed and tested the circuit and it works fine. What is the best method to read the coin cell battery level for my Bluetooth tag? If I use potential divider method will iten-USTelligent Community 13Mon, 12 Sep 2016 12:00:29 GMThttps://devzone.nordicsemi.com/thread/62339?ContentTypeID=1Mon, 12 Sep 2016 12:00:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e56d880-5c4d-43b8-aa1a-aa89aa45e781awneil<p>Depends what you mean by &quot;level&quot; - the voltage level is not a very good indication of the level of charge ...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/62340?ContentTypeID=1Mon, 12 Sep 2016 09:41:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dd5642af-c861-43df-9118-53e3ce94f0a3Einar Thorsrud<p>You do not need any external circuitry at all if you have connected the battery directly to VDD, as the SAADC peripheral can use <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html?cp=2_2_0_36_3#saadc_inputs">VDD as a input</a>. This is exactly what is done in the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/ble_sdk_app_proximity.html?cp=4_0_0_4_2_2_15">Proximity Application</a> example in the SDK. There you can see how the ADC is configured and sampled.</p><div style="clear:both;"></div>