* 1. Turn the first 20 LEDS on, one at a time, in green. * 2. Turn the first 20 LEDS on all at once, in red. * 3. Turn all the LEDS off. * Before running this code, you must install the "Adafruit ...

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 ...

There’s something about clocks — sooner or later, every hacker wants to build one. And we end up seeing all kinds of display techniques being used to show time. For the simplest of builds, 7-segment ...

LEDs have a special place in every maker's heart, and it's because we all love the ability to create light at moment's notice. Almost every project I have made over the last two decades has included ...

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, ...

Arduino library for controlling single-wire-based LED pixels and strip such as the Adafruit 60 LED/meter Digital LED strip, the Adafruit FLORA RGB Smart Pixel, the Adafruit Breadboard-friendly RGB ...