Displaying pixel art on the Adafruit RGB Matrix using a Raspberry Pi Zero

ledmatrix.py

#!/usr/bin/env python

# RGB Matrix Library: https://github.com/hzeller/rpi-rgb-led-matrix

import os
from time import sleep

directory = "/home/pi/rpi-rgb-led-matrix/examples-api-use/"

while(1):
    for filename in os.listdir(directory + "images"):
        os.system("sudo " + directory + "demo -D1 -m 0 --led-gpio-mapping=adafruit-hat-pwm " + directory + "images/" + filename + " &")
        sleep(5)
        os.system("sudo killall demo")