Arduino Project Handbook

PROJECT 24: RAINBOW LIGHT SHOW

IN THIS PROJECT, WE’LL CREATE A RAINBOW LIGHT SHOW USING AN 8×8 RGB LED MATRIX. WE’LL ALSO USE SHIFT REGISTERS TO EXTEND THE ARDUINO AND CONTROL THE MATRIX.

PARTS REQUIRED

• Arduino board

• 2 full-size breadboards

• Jumper wires

• 8×8 RGB LED matrix

• 4 74HC595 shift registers

• 16 220-ohm resistors

• 8 330-ohm resistors

HOW IT WORKS

An RGB LED matrix (Figure 24-1) is a grid of 64 red, green, and blue LEDs. You can create the colors of the rainbow by controlling each LED individually and by mixing colors together. ...