https://devzone.nordicsemi.com/f/nordic-q-a/77180/i-need-help-with-saadcHello I&#39;m using saadc sdk (v17.02) and I&#39;m using a simple water level sensor. I am asking a question because there is something strange about reading this sensor through saadc. This sensor measures the height of the water and returns the analog valueen-USTelligent Community 13Wed, 07 Jul 2021 09:12:34 GMThttps://devzone.nordicsemi.com/thread/318932?ContentTypeID=1Wed, 07 Jul 2021 09:12:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:66ca2064-1eae-404c-a943-d4f1ebd6cc89schosdas<p>Hello, StefXinet<br />Thank you for your answers.</p> <p>I solved this problem.<br />I connected the sensor to 5V, Gnd, and p0.03 (A0) on the board before, but now that I changed it from 5v to VDD, it seems to be working normally.</p> <p>Thank you!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/318915?ContentTypeID=1Wed, 07 Jul 2021 08:04:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ba245a7f-1c2e-4920-a80d-8f6a9f12545bStefXinet<p>Hello,</p> <p>could you post a schematic?</p> <p>I suggest to put a fixed voltage on the SADC input and misure it, so you can check if the value read is correct.</p> <p>Bye</p><div style="clear:both;"></div>