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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
Any ideas what's getting warm? There's a green polyfuse on the board that cuts out at around 1A. If it's that then there might be a short somewhere between GND and power wires - have you soldered anything to it?