Technical details. These are made from P5 LED Matrix panels, each with 32 x 64 LEDs that are more commonly used in large video signs or jumbotrons. In this case, I have combined 4 such panels to make an array of 128 x 64 LEDS or 64 x 128 LEDs depending on configuration. That is is a boatload of LEDS ( 8192 to be exact).
The brain is a Teensy 3.6 which is an arduino-like board. Arduino based code is being used. I wrote the bulk of the pattern code, I borrowed the bits that get it to work with these panels. The teensy is running the panels through a SmartMatrix shield in order to drive this particular style of LED board. This is about as many LEDs as this model of teensy can handle. Adding more LEDs would require more more memory and a faster processor or the speed would suffer. There are newer more capable teensy boards and new shields coming that should let me double this (if I was hankering to).
One good thing about these panels is that they are not power hogs. So a 4A, 5V power supply is capable of supplying the needed power. I am careful to not run them all with a bright/white pattern.
Videos and photos of the matrix in action can be found here and many more videos the patterns during development (when this was still 2 square matrixes joined via a cable) are here. The camera does not do these justice.
I also made some frames with smaller (12 x 20 in) wood sheets and pieced them together. Used alcohol based wood dye to color them.
