The necklace consists of a series of Neopixel LED strips, housed within a tidy 3D printed housing made with flexible filament. A dovetail joint makes putting on and removing the necklace a cinch.

Everyone loves NeoPixels. Individually addressable RGB LEDs at a low price. Just attach an Arduino, load the demo code, and enjoy your blinking lights. But it turns out that demo code isn’t v… ...

There are several types of LED strips but this article will focus on driving LED arrays which use WS2811 4 and WS2812 4 driver chips. This is in part because products like Adafruit’s NeoPixel strips ...

The NeoPixel RGB Neon-like LED Flex Strip contains 60 LED along the meter but in groups of 3-LEDs-per-pixel. So basically, in your NeoPixel program, this looks like a 20-pixel-long strand.