Using ADC to measure battery voltage internallyhttps://devzone.nordicsemi.com/f/nordic-q-a/9853/using-adc-to-measure-battery-voltage-internallyLooking at the ADC HAL, I see 8 choices for ADC input, plus a disabled case. Is it possible to choose as the input to the ADC a node that is proportional to the VCC battery voltage? In other words, I want to measure the battery voltage without addingen-USTelligent Community 13Thu, 22 Oct 2015 14:32:41 GMTRE: Using ADC to measure battery voltage internallyhttps://devzone.nordicsemi.com/thread/36570?ContentTypeID=1Thu, 22 Oct 2015 14:32:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e73a22fc-af4f-4f2d-8b4e-904768ae6167Stefan Birnir Sverrisson<p>Hi</p> <p>You choose the analog input pins in combination with one of the three</p> <pre><code>NRF_ADC_CONFIG_SCALING_INPUT_FULL_SCALE NRF_ADC_CONFIG_SCALING_INPUT_TWO_THIRDS NRF_ADC_CONFIG_SCALING_INPUT_ONE_THIRD </code></pre> <p>but you can also choose one of the two</p> <pre><code>NRF_ADC_CONFIG_SCALING_SUPPLY_TWO_THIRDS NRF_ADC_CONFIG_SCALING_SUPPLY_ONE_THIRD </code></pre> <p>which measures the supply voltage directly and not an analog input pin</p><div style="clear:both;"></div>