https://devzone.nordicsemi.com/f/nordic-q-a/80504/trigger-lpcomp-manuallyHi, I took a look at the low power comparator example from the Nordic SDK and test it with my nRF52-DK and I found out that the comparator isn&#180;t triggering when I set the input voltage to 1.4 V (for example) and start a debug session. Instead, the interrupten-USTelligent Community 13Tue, 12 Oct 2021 16:16:24 GMThttps://devzone.nordicsemi.com/thread/333783?ContentTypeID=1Tue, 12 Oct 2021 16:16:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a5545877-9d9d-43d5-b828-28edf8ca32b3Marjeris Romero<p>Hi Kampino,</p> <p>The LPCOMP will generate events only when the input voltage VIN+ crosses the reference voltage VIN-. In sdk_config.h the default reference voltage is set to VDD/2, which for nRF52832 DK is around 1.4V. You will not get any event before the input voltage cross the reference voltage.</p> <p>If you want to check if the input voltage is above or below the reference voltage when the application starts you will need to trigger an sample manually using <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf5340%2Flpcomp.html&amp;resultof=%22%54%41%53%4b%53%5f%53%41%4d%50%4c%45%22%20&amp;anchor=register.TASKS_SAMPLE">TASKS_SAMPLE</a> and read the result from <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Flpcomp.html&amp;cp=4_2_0_38_2_3&amp;anchor=register.RESULT">RESULT</a> after EVENTS_READY event.</p> <p>Best regards,</p> <p>Marjeris</p><div style="clear:both;"></div>