https://devzone.nordicsemi.com/f/nordic-q-a/127908/nrf54l15-adc-channels-not-reading-correctlyHi, I’m working with nRF54L15 (nRF54L15 DK) using NCS v3.0.2 , and I’m facing an issue with ADC channel readings. I configured the following ADC channels: AIN3 → P1.07 AIN6 → P1.13 AIN7 → P1.14 Devicetree overlay / { zephyren-USTelligent Community 13Fri, 24 Apr 2026 14:50:24 GMThttps://devzone.nordicsemi.com/thread/565472?ContentTypeID=1Fri, 24 Apr 2026 14:50:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ed4bb05-15c7-4875-ba88-1e4d95b89e05Kazi Afroza Sultana<p>Hello,</p> <p>&#39;&#39;What is the correct AIN -&nbsp;GPIO mapping for nRF54L15 DK?&#39;&#39;</p> <p>According to schematic, AIN0 (P1.04), AIN1(P1.05), AIN2(P1.06), AIN3(P1.07), AIN4(P1.11), AIN5(P1.12), AIN6(P1.13), AIN7(P1.14)</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1777041667705v3.png" alt=" " /></p> <p>P.107 is used as CTS for UART1. I think you can use this as ADC pin if you disable the VCOM1 from board configurator app.&nbsp;</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1777040253190v1.png" alt=" " /></p> <p><a href="https://docs.nordicsemi.com/bundle/ug_nrf54l15_dk/page/UG/nRF54L15_DK/hw_desription/connector_if.html#ariaid-title1">GPIO interface</a></p> <p><span>&nbsp;P1.14 is mapped to&nbsp;</span><strong>AIN7</strong><span>&nbsp;and is a valid analog input pin</span></p> <p>You can try to use the pins which are only used for analog input.&nbsp;</p> <p><span>&#39;&#39;Is any additional configuration required for ADC inputs on nRF54?&#39;&#39;</span></p> <p><span>Again from that table , for nRF54l15, several AIN pins are used by default for other functions</span></p> <p><span><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1777041959800v4.png" alt=" " /></span></p> <p><span>Tht&#39;s why, AIN4 (P1.11)&nbsp;is recommended for ADC exercises on the nRF54L15 DK (<a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-6-analog-to-digital-converter-adc/topic/exercise-2-interfacing-with-adc-using-nrfx-driver-and-software-timers/">Exercise 2 - Interfacing with ADC using nrfx driver and software timers - Nordic Developer Academy</a>)</span></p> <p><span>I don&#39;t know how you configure pin and how you set gain. The best is to look at this&nbsp;<a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-6-analog-to-digital-converter-adc/">Lesson 6 - Analog-to-digital converter (ADC) - Nordic Developer Academy</a>&nbsp;chapter from DevAcademy.&nbsp;</span></p> <p><span>Thanks.</span></p> <p><span>BR</span></p> <p><span>Kazi</span></p><div style="clear:both;"></div>