when use VDD channel in SAADC,does it influence AIN3 channel used as GPIO?https://devzone.nordicsemi.com/f/nordic-q-a/80806/when-use-vdd-channel-in-saadc-does-it-influence-ain3-channel-used-as-gpioI used VDD channel to detected battery voltage, and the P0.5(AIN3) connect to a LED, But I found that after initialize SAADC, P0.5 cannot control output.en-USTelligent Community 13Tue, 19 Oct 2021 23:50:58 GMTRE: when use VDD channel in SAADC,does it influence AIN3 channel used as GPIO?https://devzone.nordicsemi.com/thread/334956?ContentTypeID=1Tue, 19 Oct 2021 23:50:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:96b469af-f8e7-4e34-9dce-8064655df7a1great-master<p>I have found the problem,<em><span class="skip">rosin joint! But the t<span>he phenomenon is deceptive!</span></span></em></p><div style="clear:both;"></div>RE: when use VDD channel in SAADC,does it influence AIN3 channel used as GPIO?https://devzone.nordicsemi.com/thread/334903?ContentTypeID=1Tue, 19 Oct 2021 13:24:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:af56ae77-f40d-427e-aaed-a16a655439aaKenneth<p>Sounds to me that you have enabled SAADC&nbsp;to sample AIN3. Then the ADC will take control of the AIN3 pin.</p> <p>Kenneth</p><div style="clear:both;"></div>