First Steps with the Arduino-UNO R3 | Maker, MakerED, Coding | Scrolling Text with 8×8 LED MATRIX | EDU: Digital CitiZENship, CyberSecurity, eSkills, Modern EDU by Gust MEES
In-Depth: Interfacing MAX7219 LED Dot Matrix Display with Arduino
How to Interface 8×8 Dot Matrix MAX7219 with Arduino UNO