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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, there isn't I'm afraid. You just need to connect power, gnd, and the two Serial (RX and TX) wires though. Then you're just looking for certain sequences of characters that come from it.
For instance this gives you a good idea (although not for Espruino): https://learn.adafruit.com/bluetooth-neopixel-goggles
The code on that page is in C, but it seems like you're just looking for the characters
!C3 more characters that contain the colour, and one more one which you can safely ignore.