One of the more surprising news items this week :)
Thomas Eldredge writes:
This is my first step in using Blender as a lighting design/control tool.
For now it's just USB/serial interface but over time I plan to integrate DMX/Artnet protocols (though this will probably involve creating an arduino sheild for the purpose. It's just baby steps but I thought it might be cool enough for a post. Hope you enjoy! Get the Arduino code and blend files here.