8×8 LED Matrix modules are now widely available, and fortunately they are easy to use with our favorite Arduino microcontroller. 8×8 LED Matrix module have many applications in real life, such as ...

Measure your reaction time in milliseconds with an Arduino Uno, a MAX7219 8×8 LED matrix and a single push‑button.

Important: This project is specifically designed for a 32x8 LED matrix using 4x MAX7219 modules. Other matrix sizes or configurations are not supported without code modifications. Note: The matrix ...