Adafruit neopixel rings addressable rgb leds adafruit 1643 the adafruit 12 neopixel ring lets you address every single one of the 12 leds and set its 24 bit rgb value the result is 37mm 15in in diameter and is the height of bling these seemingly simple gadgets have triggered an amazing array of creative projects from watches and compasses to steampunk goggles and more each ring has solder pads for 5v dc and gnd plus data in and data out simply feed the data out from one into the dat