427 LED controllers (model "Twinkler") with light pipes, solid-state PC (running Linux).
The 427 Twinklers (LED controllers) are connected through a single serial bus. Every Twinkler has a low-power RGB LED with a controller and a power regulator. Each Twinkler on the serial bus can be individually addressed. A solid-state PC allows interactive updating. Light pipes transport the LED colour through a 36mm thick table top.
The colour and brightness of every LED can be adjusted individually, and dynamically
Detail image: the end points of the light pipes are flat with the table top surface
A glimp of the electronics below the long table: the inset shows the wiring from one LED board to the next
A few "Twinklers", the LED boards (with light pipe) that were used in this project