https://devzone.nordicsemi.com/f/nordic-q-a/18852/nrf51822-power-consumption-problemDear Everyone. Hi, I develop nrf51822 with DK PCA10028. I have been optimizing the power consumption to some extent. But now I am very confused. I use S110 softdevice 8.0.0 and have a single uart which usually leave it in a diable state. I checkeden-USTelligent Community 13Mon, 09 Jan 2017 07:31:24 GMThttps://devzone.nordicsemi.com/thread/72815?ContentTypeID=1Mon, 09 Jan 2017 07:31:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e50df95e-524e-42ab-8442-5d7cf130e0a4Martijn<p>WFE and WFI only put the CPU into sleep mode. And 30uA is way less than the CPU uses when it is active. So the CPU actually is in sleep mode.</p> <p>The softdevice is in disabled mode? My guess is you have other peripherals active. Maybe a rtc interrupt in your application code that is causes a periodic wakeup?</p><div style="clear:both;"></div>