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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.
@Drarok
I've powered the ring off the 3.3v line of my power supply, and connected D30 direct to the ring's data pin, and now it's working!
Every so often, it has a bit of a wobble, but I think there's weird capacitance or grounding issues making the signals a bit unreliable.