Adafruit NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix Shipping:4-6 Days The two mounting holes are

The two mounting holes are intended to be used with #2 screws (not included)

Maintain projects installed in hard-to-reach places or places where wires and cables would be impractical

Reading from location 0 returns the SRF08 software revision

128K flash and 8 DMA channels by using a MCU of dsPIC33 family

This diagram is also available as a downloadable pdf: Dual TB9051FTG Motor Driver Shield for Arduino schematic (299k pdf)

Adafruit NeoPixel Shield for Arduino - 40 RGB LED Pixel Matrix Shipping:4-6 Days The two mounting holes arePut 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 by default powered from the 5V onboard Arduino