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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@jonreid
Great thanks for that. I will run this on some units to see if it makes a difference - might take a while to determine if there is a difference compared to standard firmware. I will also try to add some logging to capture the RTC time if I can detect it happens again.
I do use deepsleep, but only when the power is disconnected, which should not have been the case. When in deepsleep it will be waking up every 4s, so not asleep long.