https://devzone.nordicsemi.com/f/nordic-q-a/49660/mqtt-disconnect-and-going-to-sleepHi, I have been using MQTT_simple example and building my application on that. One thing I noticed is that power consumption is around 40mA. I would like to hit that 7uA or something close. What are the things that need to be done to do that? Disconnecten-USTelligent Community 13Fri, 12 Jul 2019 12:28:44 GMThttps://devzone.nordicsemi.com/thread/198163?ContentTypeID=1Fri, 12 Jul 2019 12:28:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:009ee8b9-f9bc-430e-8d29-33be4ccd38e1Marjeris Romero<p>Hi,</p> <p>Sorry for the late answer here. You can use PSM/eDRX modes:&nbsp; <a href="https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/hardware-design/posts/measuring-psm-idle-current-on-the-nrf91-dk">https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/hardware-design/posts/measuring-psm-idle-current-on-the-nrf91-dk</a></p> <p>But it seems you already found there yourself&nbsp;<span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span>&nbsp;You should then be able to go down to ~7uA.</p> <p>Also set &#39;CONFIG_SERIAL=n&#39; in both the application and SPM and as Martin commented to you in the tutorial, disable serial in the prj.conf for the SPM as well as your application.</p> <p>Best Regards,</p> <p>Marjeris</p><div style="clear:both;"></div>