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Adafruit NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix
Overview | 32x16 and 32x32 RGB LED Matrix | Adafruit Learning System
Amazon.com: SunFounder Full Color RGB LED Matrix Driver Shield + RGB Matrix Screen Compatible with Arduino : Electronics
Serial 8×8 RGB LED Matrix Module for Arduino | ArduinoDev.com
How to Add an RGB Matrix Display to Your Board in Upverter | Gumstix, Inc.
8x8 88 RGB LED Matrix Module Driver Board + Full Color Rainbow V2.0 Mini Dot Matrix RGB LED Driver Shield for Arduino AVR: Amazon.com: Industrial & Scientific
32x16 RGB LED matrix display with Arduino UNO microcontroller | DFrobot - YouTube
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Overview | 32x16 and 32x32 RGB LED Matrix | Adafruit Learning System
Medium 16x32 RGB LED matrix panel - 6mm Pitch : ID 420 : $24.95 : Adafruit Industries, Unique & fun DIY electronics and kits