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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
That's odd - does it happen repeatedy, or just that first time?
Also, are the buttons pulling up to 3.3v, or a higher voltage? The pins should be 5v tolerant but I've noticed that if the pins are over-volted, it can actually start to cause other pins to read a voltage as well.