Overview

The 8x8 LED Matrix module is a 64-LED matrix peripheral, ideal for teaching time multiplexing, decoders and state machines on FPGAs.

Features

• 64 red LEDs in an 8 row × 8 column matrix
• 1-of-8 multiplexing with current-limiting resistors per column
• Connector compatible with FPGAedu Board v1 J1/J2 headers
• 3.3 V supply taken from the header

What you learn with this module

1. Why we cannot turn on all 64 LEDs at once.
2. How to refresh the matrix above 60 Hz with no perceptible flicker.
3. How to write a frame buffer in BRAM and stream it to the matrix.

One of the most used modules in introductory FPGA courses because it makes the concept of time in hardware visible.