https://devzone.nordicsemi.com/f/nordic-q-a/74648/understanding-power-consumptionHi, I&#39;m trying to figure out what could make the current consumption difference between your blinky example with freertos and with the timer example ? Here is my configuration : - Board : pca10056 - Low voltage mode, with REG1 as DC/DC and REG0en-USTelligent Community 13Tue, 04 May 2021 08:35:57 GMThttps://devzone.nordicsemi.com/thread/308093?ContentTypeID=1Tue, 04 May 2021 08:35:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39034cd7-13cd-478c-b736-70331cf72307hugo_98<p>Thank you !</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/308086?ContentTypeID=1Tue, 04 May 2021 08:23:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0bcef9c2-c597-4bf1-8f53-63c1be1a72c0Jared<p>Hi,</p> <p>The difference is in that the nrf_drv_timer uses the TIMER peripheral which again uses the HFCLK and keeps it ON. FreeRTOS however uses the RTC which uses the LFCLK and keeps it ON.&nbsp;</p> <p>As you can see from the product specification, the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/clock.html?cp=4_0_0_4_3_3_1#unique_292699661">HFCLK </a>use more current than the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/clock.html?cp=4_0_0_4_3_3_2#unique_554427417">LFCLK</a>.</p> <p>The <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_timer.html?cp=7_1_3_53">app_timer module</a> is also based on the RTC/LFCLK. You can use that instead.</p> <p>best regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>