https://devzone.nordicsemi.com/f/nordic-q-a/4057/enabling-low-power-mode-in-an-nrf51822-mbed-project-ported-to-uvisionHi, We designed an nrf51822 BLE application using the mbed kit and on-line tools. Our target pcb has a 1.8V onboard supply. To minimise consumption i want to disable the DCDC and also access the other sleep functionalities of the nrf51822. I haveen-USTelligent Community 13Tue, 14 Oct 2014 08:36:12 GMThttps://devzone.nordicsemi.com/thread/14555?ContentTypeID=1Tue, 14 Oct 2014 08:36:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee2bd44f-08b8-4d05-8be9-a11233fa16c8Stefan Birnir Sverrisson<p>Actually, I do not know how you do this in MBED code, but you could start coding in C and use the <a href="https://www.nordicsemi.com/eng/nordic/Products/nRF51822/nRF51-SDK-zip/23446">nRF51822 SDK</a>. A blog on how to use the MBED kit with the nRF51822 SDK and Keil IDE is <a href="https://devzone.nordicsemi.com/blogs/11/using-nrf51-sdk-with-the-nrf51822-mbed-kit/">here</a>.</p> <p>A guide for lowering current consumption when using nRF51822 and the nRF51822 SDK is <a href="https://devzone.nordicsemi.com/question/5186/how-to-minimize-current-consumption-for-ble-application-on-nrf51822/">here</a>.<br /> Simple low power examples are <a href="https://github.com/NordicSemiconductor/nrf51-powerdown-examples/blob/master/system-on-wakeup-on-gpio/main.c">here</a>.<br /> Also, some of the examples in the SDK are power optimized, e.g. the <a href="https://devzone.nordicsemi.com/documentation/nrf51/6.1.0/s110/html/a00067.html">ble_app_hrs example</a></p> <p>Anyway, by default, the DCDC should be disabled.</p><div style="clear:both;"></div>