NeoPixel Pong using MicroPython for the BBC micro:bit

pong.py

# Play a game of squeeky pong with a 1m (30 led) NeoPixel strip. :-)
from microbit import *
import music
import neopixel


neopixel.init(pin1, 30)


def show_pixel(position, wait):
    neopixel.set_colour(position, 0, 0, 64)
    neopixel.show()
    music.pitch(440 + position * 16, wait)
    neopixel.set_colour(position, 0, 0, 0)


def run():
    pos = 0
    score = 0
    pixels = [x for x in range(30)]
    pause = 100

    while True:
        if button_a.is_pressed():
            for pos in pixels:
                show_pixel(pos, pause)
                pos += 1
            for pos in pixels[::-1]:
                show_pixel(pos, pause)
                pos -= 1
            score += 1
            pause -= 5
            display.show("{}".format(score))
        else:
            display.scroll("Score: {}".format(score))
            break

while True:
    if button_a.is_pressed():
        run()

When I tried the code above, I got a number of error messages which I suspect is because Nicholas was probably using a beta test version of MicroPython. So, I modified his code to compile without errors, and I modified it to run on the Proto-PIC "Micro:Pixel", a 4x8 Neopixel display add-on board for the BBC Micro:bit. The only change to make it run on the Micro:Pixel board was to change the number of neopixels from 30 to 32. The other change was to make a cut and jump on the Micro:Bit board to use Microbit pin8 instead of pin0 to drive the string of NeoPixels. The Proto-PIC website has a note on how to do this on their page that describes the Micro:Pixel board. Below is the code listing (an image file):