Learn how to use NeoPixel rings with Arduino UNO and a rotary encoder. NeoPixels are great, because you need only one data wire to control any number of pixels you want, allowing to show any color.

NeoPixels, or WS2812 RGB LEDs, are the display device du jour for impressive and blinding lighting projects. Commonly known for very tight timing requirements, [Josh] discovered this is, in fact, ...

As an alternative to an Arduino Nano, Uno, or Mega, you can use a Raspberry Pi, a PSoC, a Teensy 3.2, an XLR8, or a ShieldBuddy to control your NeoPixel applications. As an alternative to an Arduino ...

// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products) // NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2) // NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel ...

Good grief! I simply cannot believe that we’re already at Part 7 of what was originally conceived as a trio, triad, or troika of articles. In my previous column, we wrote some simple Arduino sketches ...

There are LED clocks, and then there are LED clocks that can blind you from 30 paces. [Stiggalicious’s] LED ring clock is of the latter variety. 200 WS2812B/Neopixel RGB LEDs drive the ring clock to ...