This is the ArtNet LED controller that Urban Visuals has just designed for sale and for our own projects. The controller can drive up to 510 serial RGB leds across three art net universes (170 leds per universe).
It's currently driving flexible LED strings we've sourced from abroad, and uses only a clock and data line for control, and it can be programmed to drive almost any format of chip level serial control.
The ArtNet spec allows for up to 256 universes using standard ethernet cabling. It can run up to 43,520 RGB LEDs. That would require 84 of these units. (LEDs not included.)
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