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Tutorial – Arduino and the MAX7219 LED Display Driver IC | tronixstuff.com
Driving an 8x8 (64) LED Matrix with MAX7219 (or MAX7221) and Arduino Uno - Electronics-Lab.com
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Amazon.com: ALAMSCN MAX7219 Dot Matrix Module 8x8 LED Display Modules for Arduino Raspberry Pi Microcontroller with 5Pin Wires Red (Pack of 4) : Industrial & Scientific
MAX7219 LED Matrix Display with Arduino Tutorial - Circuit Geeks
MAX7219 LED Matrix Display with Arduino Tutorial - Circuit Geeks
Regarding MAX7219 LED Dot Matrix - LEDs and Multiplexing - Arduino Forum
MAX7219 Dot Matrix Module 8x32 LED Display For Raspberry Arduino ESP 8266 ESP32 | eBay
Arduino and MAX7219 LED Dot Matrix Display Interfacing Tutorial