from codex import *
from time import sleep

delay = 0.5

while True:
    pressed = buttons.is_pressed(BTN_A)
    if pressed:
        pixels.set(0, RED)
        pixels.set(1, RED)
        sleep(delay)
        pixels.set(0, BLACK)
        pixels.set(1, BLACK)
        sleep(delay)

        pixels.set(0, RED)
        pixels.set(1, RED)
        sleep(delay)
        pixels.set(0, BLACK)
        pixels.set(1, BLACK)
        sleep(delay)

        pixels.set(0, RED)
        pixels.set(1, RED)
        sleep(delay)
        pixels.set(0, BLACK)
        pixels.set(1, BLACK)
        sleep(delay)

        pixels.set(0, RED)
        pixels.set(1, RED)
        sleep(delay)
        pixels.set(0, BLACK)
        pixels.set(1, BLACK)
        sleep(delay)

    pressed = buttons.is_pressed(BTN_B)
    if pressed:
        pixels.set(2, RED)
        pixels.set(3, RED)
        sleep(delay)
        pixels.set(2, BLACK)
        pixels.set(3, BLACK)
        sleep(delay)

        pixels.set(2, RED)
        pixels.set(3, RED)
        sleep(delay)
        pixels.set(2, BLACK)
        pixels.set(3, BLACK)
        sleep(delay)

        pixels.set(2, RED)
        pixels.set(3, RED)
        sleep(delay)
        pixels.set(2, BLACK)
        pixels.set(3, BLACK)
        sleep(delay)

        pixels.set(2, RED)
        pixels.set(3, RED)
        sleep(delay)
        pixels.set(2, BLACK)
        pixels.set(3, BLACK)
        sleep(delay)