Using an ATtiny85 to drive WS2812 (NeoPixel) LED strips #NeoPixels @MicroChipMakes « Adafruit Industries – Makers, hackers, artists, designers and engineers!
Use a $1 ATTiny to Drive Addressable RGB LEDs : 6 Steps - Instructables
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button cycled NeoPixel on Digispark ATtiny85 - Project Guidance - Arduino Forum
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