9 years, 4 months ago.  This question has been closed. Reason: Too broad - no single answer

Wake up using RTC

I need to generate a wake up function synchronised to the RTC but still retaining Time and Date registers, for instance every second or 10 seconds (1 second resolution), is this possible? I'm using a low power Ticker but that runs off synchronisation with the RTC by a couple of seconds per hour.

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