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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, if you don't want to physically touch your Puck then yes, to debug you have to be connected via Bluetooth.
But it is possible to solder on a UART connection, then you can debug and reprogram via the UART while being connected (possibly to a different computer) by Bluetooth: http://www.espruino.com/Puck.js#serial-console