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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
Yes, you can. You can either wire them on, or some of the smaller switches can be placed directly onto the Puck's pins.
There's some info here for the Espruino Pico, but it applies equally to puck.js as well: http://www.espruino.com/Pico+Buttons