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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.
@DrAzzy
You'd need to give a lot of thought to periodically save();-ing... I'm not sure that's a great idea.
The Espruino sleeps while the interpreter is idle, but you can also setDeepSleep() to make it sleep more aggressively - see the reference page.
If it's that small an amount of information that it would fit in ram, you could save it on an EEPROM (like AT24 ) - see http://www.espruino.com/EEPROMs
What's the issue with using a (micro)SD card?