Quick and dirty fire for neopixels in circuitpython

code.py

# not a great one, but it works, and it's tweakable.  You'll need to add imports and tweak values

    strand = neopixel.NeoPixel(NEOPIXEL, 10, 3, 1, False)
    while True:
        r = 226
        g = 121
        b = 35

        #Flicker, based on our initial RGB values
        for i in range (0, len(strand)):
            flicker = urandom.randint(0,110)
            r1 = bounds(r-flicker, 0, 255)
            g1 = bounds(g-flicker, 0, 255)
            b1 = bounds(b-flicker, 0, 255)
            strand[i] = (r1,g1,b1)
        strand.show()
        time.sleep(urandom.randint(100,1000) / 3000)