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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
Well, it should tell you which pins you can use when you put in the wrong ones. However there's a page that lays it all out here: http://www.espruino.com/ReferenceESPRUINOBOARD