https://devzone.nordicsemi.com/f/nordic-q-a/46391/lowpower-mode-between-advertising-connectionI&#39;m using nrf52840 to develop a remote control using BLE long range. We use two nrf52840 : on inside the remote and another in the system to control. The remote is used as a peripheral and the system is running as a central device. We use the examplesen-USTelligent Community 13Thu, 18 Apr 2019 18:55:21 GMThttps://devzone.nordicsemi.com/thread/182770?ContentTypeID=1Thu, 18 Apr 2019 18:55:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc05c53b-5ba5-4480-b52e-9f0715ff4d18Fred<p><span>You don&#39;t need to call the shutdown function. In between advertising the device is already in system-on low power mode otherwise the power consumption would be higher still. When you are looking at several 100-s of uA as in your case, there are peripherals (SPI, TWI, UART, etc) that are not disabled. Try to look whether this is&nbsp; the case. Furthermore, you would want to make sure that all the pins are in their default state because floating pins also might consume power. Also, make sure that&nbsp;you&nbsp;have disconnected&nbsp;the debug connector.&nbsp;</span><br /><span>Hope this helps.</span></p><div style="clear:both;"></div>