Some fun with Neopixel / WS2812 LEDs in CircuitPython

A growing list of LED effects. So far:

• fire1 -- simple fire simulation, uses ulab

• ulab_speedup -- how to use ulab (CircuitPython Numpy) to speed up LED animations by 10x

  Also, see my write up on it here

  circuitpython_ulab_led_speedup.mp4