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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.
@RaoulDuke
Implementing this is beyond my skills, but it would make the watch far more useful for things like cycling, hiking, paragliding - basically all outdoor activities where you need constant location information. Constant onboard GPS usage shortens battery life from a few weeks to a few hours.