Is it possible to enter deep sleep, but keep track of the time? sd_power_system_off(); 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?

Nrf52 XIAO keeping track of time in deep sleep?

PJ_Glasso June 19, 2023, 4:53pm 4

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

HTH
GL