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by marssaxman
873 days ago
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Seems like a small step up from the ubiquitous WS2812, an LED with an onboard controller handling PWM and one-wire communication. Years ago, before animated LED christmas lights were readily available, I hand-made such a string out of ATtiny85 controllers, soldered onto bicolor red/green LEDs, one controller per light. A little bit of C and an evolving animation algorithm recycled from a previous project yielded a pleasing quasi-rhythmic effect. It was absurdly non-economical, but felt like a glimpse of the future. |
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