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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
Just wanted to say, if you look at the reference page for your board, eg: http://www.espruino.com/ReferenceSTM32VLDISCOVERY
The pins with purple by them are ones that you should try not to use, as they are connected to other things. It's not such a big deal on the VL board, but on boards like the F3 and F4 that have accelerometers and things, it's really handy to know what pins are already in use :)