Adafruit 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.
To make it easy to start, the LEDs are powered from the 5v onboard Arduino supply. As long as you aren't lighting up all the pixels full power white that should be fine. You can also solder in the included terminal block (pro-tip: put it on the bottom of the board so it doesn't stick up) to attach an external 4-6VDC power supply - it will also power the Arduino and shield. If you want to keep the Arduino on DC or USB power only, cut the center of the solder jumper to the right of the terminal block. There's a polarity protection FET on the external input in case you wire the power backwards (we would never do that, it was, umm, a friend of ours, yeah that's it!)
If, say, you need MORE blinky, you can chain these together. For the second shield, connect the DIN connection to the first shield's DOUT. Also connect a ground pin together and power with 5V. There you go! You can chain as many as you'd like although after 5 or more shields you may run low on RAM if you're using an UNO.
We include both stacking headers and plain headers. Use whichever you prefer - there isn't a lot of space left over for the 'duino pin breakouts so if you want to wire up some other outputs or sensors the stacking headers are good. For a slim sturdy look, solder on the plain headers.
Our detailed NeoPixel Uberguide has everything you need to use NeoPixels in any shape and size. Including ready-to-go library & example code for the Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, Trinket/Gemma, Arduino Due & Arduino Mega/ADK (all versions)
Adafruit NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix (7:43)
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