Scrolling Text on a 8x8 LED Matrix Using an Arduino UNO : 5 Steps (with Pictures) - Instructables
Driving an 8×8 (64) LED Matrix with MAX7219 (or MAX7221) and Arduino Uno - Electronics-Lab.com
SunFounder 8x8 Full Color RGB LED Matrix Driver Shield + RGB Matrix Screen For Arduino|led screen connector|led flat screenled front bike light - AliExpress
Display text on 8x8 LED matrix with MAX7219 Arduino module - YouTube