Requirements

Hardware

Arduino Uno
8×8 LED Matrix MAX7219
5 males to females pin cables

Software

Aseprite
PlatformIO
(The project relies on the LedControl library : https://github.com/wayoda/LedControl)

How to use

Use Canva.aseprite and don't move it to another folder (it uses the path of this file to generate frames.txt)
In Aseprite, drop the file ./aseprite/script/ByteConverter.lua in the Aseprite script folder
Upload main.cpp to the Arduino Uno
In Aseprite, run the script ByteConverter to launch the FramesAPI.exe and display the sprites to the LED matrix

To Do (if i ever decide not being lazy)

Use binary instead of a txt file to send the bytes
Add some contrast using the luminosity
Fix the Bug that mess up the conversion to bytes when one row or column is empty (contains no pixel) in the sprite

DEMO (homemade quality U_U)

Aseprite-LED-Matrix-Uno.mp4