The last half year I have been working quite a lot with lights and shadows, and this summer I decided to build my own lighting system, which I called dimsun. The first use of it was for my blink installation consisting of 24 leds placed in a circle.
It consists of dimmers based on the TLC5940 led controllers. Each of the dimmers can control 16 channels, up to 5w each, and are intended for power LEDS, very bright leds up to 5W. The dimmer is controlled by an arduino microcontroller, and up to 6 dimmers (96 channels) can be controlled from one arduino.
The schematics will be made available soon.
The lamps are based on starshaped LED´s combined with a lens mounted on an aluminum profile.