FastLED RC5 driving a 30-pixel strip of WS2812B LEDs from an @Adafruit_Industries “Gemma” (8MHz 3.3V ATtiny85) and a 3.7V battery. The tiny Gemma is dwarfed by the LED strip and the lipo pack!
FastLED supports full HSV color on the Gemma and Trinket.
This is one of my test animations. (It’s more exciting when it’s moving; you’ll just have to trust me on this.) In general, it’s very “flow-y” in motion and a lot of that visual flow comes from the fact that it calculates the sum of three ‘sine waves’, per pixel, per update, every time. Even though the FastLED library has a fast ‘sine’ routine (sin16), it still uses some simple multiplcation, and this is where you really start to feel the ATtiny’s ‘tiny-ness’. While the ATmega has a hardware MULtiply instruction, the ATtiny has to perform multiplication the step-by-step the long way, pretty much the same way you would do it yourself on paper. Further, the Gemma runs at 8MHz, which is half the Arduino Uno’s clock speed. Nevertheless, FastLED is able to drive this animation pretty quickly and smoothly, with full HSV color.
I think there are going to be some fun ‘wearable’ applications for the Gemma and Trinket, especially once [REDACTED] and [REDACTED]!
Calling an intervention: anyone living in Mark’s area able to teach him how to take and post video on G+? 