This is a simple prototyping mount to hold two SparkFun LED Matrix breakout boards. I'm working on a larger LED Matrix setup, but wanted to do some software prototyping using two of the MAX7219 LED controller ICs. Here is the parts list and purchase links: Hardware: (1) M2.5 Tap (8) M2.5 x 5mm Machine Screws Electrical: (2) SparkFun LED Matrix Kit (4) 0.1" Crimp Connector Housing 1x5 (15) Female Crimp Pins (5) Male Crimp Pins (1) Crimping Tool (N/A) Wire and Wire Strippers (N/A) Soldering Iron NOTE: You will also need a microcontroller (or anything with Digital Input/Output pins) to interface with the LED Matrix controller ICs. I personally have been using an Arduino.Just tap the 8 holes with the M2.5 tap, and then screw the LED Matrix PCB's to the mounting plate.