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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
No - some people just post up and say "it's not working!", and it makes a lot more difficult :)
Yes, I mean ground for serial communications... I don't know where the orange and green wires go, but presumably it's to a bench supply that doesn't share the same GND as the computer's USB?