Matrix & Sprite Arduino Libraries, for a many-LED display!
Overview | 32x16 and 32x32 RGB LED Matrix | Adafruit Learning System
Driving an 8x8 (64) LED Matrix with MAX7219 (or MAX7221) and Arduino Uno - Electronics-Lab.com
GitHub - Seeed-Studio/Seeed_Arduino_UltrathinLEDMatrix: an Ultrathin 32x16 LED matrix Arduino library
Learn Coding with Arduino IDE– 8×8 LED matrix « osoyoo.com
64x32 RGB LED Matrix with Arduino Mega Tutorial - YouTube
Led Display Max7219 Dot Led Matrix Module 8*8 Mcu Control Module For Arduino 5v Interface Module 8x8 Output Input Common Cathode - Led Displays - AliExpress
Arduino LED Matrix Tutorial - DarkBlueBit.com
Arduino and MAX7219 LED Dot Matrix Display Interfacing Tutorial
8x8 led matrix interfacing with arduino - Hackster.io
Pixie Chroma - Chainable 5x7 RGB LED Matrix Display for Arduino [by Lixie Labs] : ID 5409 : $22.50 : Adafruit Industries, Unique & fun DIY electronics and kits
HCDotMatrix Arduino library for 8x8 LED dot matrix module - forum.hobbycomponents.com