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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.
@Gordon
Thanks - yes, I can imagine that really helps.
It's unfortunate that the Bangle's backlight isn't on an IO pin, so it can't be controlled by hardware PWM - it has to be software (using the same I2C interface used for accelerometer/etc), and that means other things interfere.