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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
It should flash whenever the device wakes - for whatever reason. However it will only stay lit while Espruino's code is executing - if that makes sense?
So if the bluetooth stack wakes it up, the LED will flash - but it won't actually stay on while the bluetooth stack's code is executing (because it isn't possible to hook onto it at that level)