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The controller is actually just an ATTiny2313, running of it’s internal RC oscillator at 8MHz, soldered onto an universal board with a few resistors and wires. There are no control items – no buttons, no nothing. It just does what it does – makes the effect of LEDs randomly fading in and out using 9 channels of PWM. Unfortunately, the processor has only a few hardware PWM channels, so some of the channels had to be done by software.

RGB LED Controlled By An ATTtiny2313: [Link]

Mobile infrared electronic transmitter