Addressable WS2812B LED Matrix, 5 x 5
Arranged in an 5x5 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED.
Wiring it up is easy: there are two 3-pin connection ports. Solder wires to the input port and provide 5VDC to the +5V and ground pins, then connect the DIN pin to your microcontroller. You'll also need to make a common ground from the 5V power supply to the microcontroller/Arduino. Since each LED can draw as much as 60mA (thats up to 3.5 Amps per panel if all LEDs are on bright white!) we suggest a 5V 3A power supply. For most uses, you'll see about 1-2A of current per panel.
Resources:
Arduino Library: https://github.com/adafruit/
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