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Parallel Bit-Banging Eight NeoPixel Strips from One #Arduino

We’ve already seen that it is possible to drive thousands of WS2812B NeoPixels with a lowly Arduino using careful bit-banging. But what if we could bang out 8 bits at a time rather than sending them single file? Could it be possible to drive 8 times as many strings (or get 8 times the refresh rate) from our Arduino by processing bits in parallel? It would be like having a tiny pipelined GPU render engine inside our Arduino!

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Read more including code breakdown and explanation here at josh.com; source code is available here on GitHub.


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