Nrf52 XIAO keeping track of time in deep sleep?

Is it possible to enter deep sleep, but keep track of the time?


I’m using the arduino framework where you can get millis() since start-up. Is there a way to get millis the device was shut down for without any additional hardware like an RTC?

Hi there,
I would use RTC for most reliable and accurate* But others have used the SAMD-21
like in this link.


GL :slight_smile: PJ

Can the Nrf52 XIAO wake up from deep sleep at specific time intervals? If so, how is this achieved?

Have a LQQK at this, The Xiao Nija Msfujino’s excellent work and research on it

GL :slight_smile: