https://devzone.nordicsemi.com/f/nordic-q-a/78083/nrf5340-low-consumptionHi, I need to reduce the consumption of the peripheral_uart sample on a nrf5340dk, I use nRF Connect SDK V1.5.0. At the beginning, I measured with an ampere meter 591uA on “P22”. First, I tried to increase the time during two advertising, I modifieden-USTelligent Community 13Thu, 05 Aug 2021 08:47:04 GMThttps://devzone.nordicsemi.com/thread/323466?ContentTypeID=1Thu, 05 Aug 2021 08:47:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df2ac465-0bf2-4cad-a20b-d81625fc849bRHeine<p>Hi,</p> <p>Thank you for your answer.</p> <p>Yes I&#39;m using the uart peripherial in my application.</p> <p>I will have a look on the lpuart sample.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/323325?ContentTypeID=1Wed, 04 Aug 2021 12:48:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16a63e2d-7d72-408b-ab24-7aef530c9209Stian R&#248;ed Hafskjold<p>Hi, this sounds to me like the UART peripheral RX is running and consuming current. Are you using the UART peripheral in your application? E.e. are you waiting for UART commands, and relay them over BLE? If not, you should be able to turn off all UARTs using an overlay file, and then remove the references to the UART in your code. If you are using the UART, I would suggest looking into using the<a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/drivers/uart_nrf_sw_lpuart.html"> low power UART driver</a> instead, since this is using some sort of flow control to turn on and off the RX.</p><div style="clear:both;"></div>