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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.
user52526
@alexanderbrevig
I guess it's most likely the voltage regulator that's producing the heat.
How do you power it?
Has something happened to it? F.ex if you accidentally shorted something when putting it down on a conductive surface, or other things of that nature?