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Adafruit calls them NeoPixels, but their real name is WS2812 or SK6812. They’re handy little RGB LEDs with built-in controllers. They use a single-wire anisochronous self-clocking signal, so controlling them requires some precise timing. There’s an easy-to-use Arduino library available, … Continue reading
For my custom alarm clock, I needed a light source with controllable intensity and color. It didn’t come together as easily as I expected.