Do any of the current Arduino boards have the resources (mainly ram) to address 1800 WS2812B LED's? What are the limitations on clocking that many? I am aware of power requirements and distribution.
Minimal ram needed if you are dynamically generating the colours or loading the data from an SD card.
Wow, just found this forum post.
Maybe you've already found a solution and built this project, but last year I built a DIY LED matrix using 1,800 NeoPixels, a single Arduino Mega, and a 60A power supply. It works pretty well for simple color displays and effects.
Let me know if you want any info about the project.