Adafruit Industries Adafruit Industries NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix
Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGB LEDs adorn the NeoPixel shield for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin (Digital #6) is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization.
Adafruit Industries NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix
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