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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
Thanks for posting the picture - I love the little spirals of wire for power :)
I'd love to see some pictures when it's on!
The flickering could be a power supply issue... Is it just being powered from USB at the moment?
I'd maybe add some capacitors (at least 47uF) across the power lines, at the beginning and end of the spiral.
Also if you're powering the LEDs directly off a 5v supply there's sometimes the issue of voltage levels for the data signal that make it a bit glitchy. You could try adding a 300 Ohm (ish) resistor between the data wire (B15?) and the 5v for the LEDs, then add the line:
That'll make the output so it only pulls down to 0v, and then the resistor will pull up to 5v. It means you end up with a full 5v signal (which should be more reliable) rather than the 3.3v you'd usually get.