https://devzone.nordicsemi.com/f/nordic-q-a/45017/how-to-increase-the-accuracy-of-adc-channelHi, I am reading a voltage value from an analog sensor which changes values with 0.02V step. So, i need the accuracy up to 0.02V from ADC channels . But right now i am off by around 0.05V. Where I should get 2.94V I am receiving 2.89V and this changesen-USTelligent Community 13Tue, 19 Mar 2019 09:43:13 GMThttps://devzone.nordicsemi.com/thread/176922?ContentTypeID=1Tue, 19 Mar 2019 09:43:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:156060f5-a992-4395-b96e-52dd6071c37dhaakonsh<p>You&#39;ll need to use oversampling if you want a high degree of accuracy. What is the sensors output voltage range? I ask because you might find it useful to use differential inputs where the &quot;negative&quot; input is biased, f.ex. to 2.5V. That way your 14 bits will cover a smaller voltage range and thus give you greater resolution.<br /><br />For your issue we need to find the function that issued the error code. The breakpoint you hit is inside the applications error handler that is called whenever a APP_ERROR_CHECK is run in a err_code that is not NRF_SUCCESS.<br />We need the error code, line number, and file name that is passed to the error handler.&nbsp;</p><div style="clear:both;"></div>