Changes
=== Matrix reference ===
* Size: 64x32 32x64 RGB LEDs (127x256mm)* Organization: 2 blocks (upper and lower) with each 16 lines à of 64 LEDs
* (6) 64 bit shift registers
* 40ns period = 25MHz max.
* ~4A with full matrix in white color
* 5V signals
* Price: ~ 150.- USD
