There are a couple ways you can go on this project, build everything from scratch or leverage a kit version. I'll cover both methods in this Instructable.
Step 1: Getting the Materials
- 4 sets of 32x32 RGB LED Matrix panels (Dimensions 7.5" x 7.5")
- IOIO board or custom PIXEL IOIO board
- 5V power, rated at 15A minimum, an old PC ATX power supply is one option
- 3 16.5" x 16.5" acrylic sheets (I got mine from my local Tap Plastics shop)
- 4 5/8" hex stand-offs with 2 screws for each end
- 32 4-40 5/16" panhead screws
- Android, PC, Mac, and Raspberry Apps to set the content (free)
- See http://ledpixelart.com for more information about this project
- Kit available here
On the LED matrix panels, you'll find several kinds out there from Adafruit, Sparkfun, etc. Unfortunately while they make look the same, there does not seem to be any standard for LED matrix panels and each manufacturer can use a different chipset causing them to behave differently. With a little know how, it is possible to modify this project's software to support additional LED matrix panels. As of this writing, Adafruit's 16x32 LED matrix panel has been tested as well as the 32x32 panels available in the kit version of this project.
If you do decide to use your own LED panels, you'll need to modify the Java libraries for this project for the new panel. First change is here and the second change here. You'll find a developers guide here on how to setup your development environment for making these changes.