https://devzone.nordicsemi.com/f/nordic-q-a/112436/about-power-off-wake-up-connection-timeGenerally, the peripheral calls the sd_power_system_off() function to enter power off mode. Then use GPIO interrupt to exit the power off mode and connect to the central device. How long does this process usually take? Do you have any official data onen-USTelligent Community 13Tue, 25 Jun 2024 09:41:19 GMThttps://devzone.nordicsemi.com/thread/490554?ContentTypeID=1Tue, 25 Jun 2024 09:41:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:372d3846-6e8a-49cf-9d13-4c2dbef54c5fLianghaisen<p>OK，thanks</p> <div id="qb-sougou-search" style="display:none;"> <p>搜索</p> <p class="last-btn">复制</p> </div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/490481?ContentTypeID=1Tue, 25 Jun 2024 07:08:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8437e4a8-6474-44eb-b3c5-f0abdb26265fJared<p>Hi,</p> <p>The nRF52833 is <a href="https://docs.nordicsemi.com/bundle/ps_nrf52833/page/power.html#ariaid-title73">specified </a>to use typically 16.5 µs from System Off until it starts executing CPU code. How fast it connects to a central depends on what kind of advertising it&#39;s doing (directed vs undirected) and how close the device is to the central etc. It&#39;s not possible to give a exact number on this.&nbsp;</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>