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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.
@maze1980
I'd start try to use it as compass, before implementing anything else.
The compass on my smartphone (and an so many others, cheap and expensive) is not accurate at all, not moving when turning the smartphone and suddenly jumping back. Maybe it's just overcompensated, or whatever. I wouldn't use my smartphone compass to control volume up and down. Maybe puckjs is better.