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Handy Howie
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My wife asked me if I could change the top of our four poster bed into a  starry night scene.  I  cut a sheet of thin MDF to size and then drilled 88 holes for the white LEDs.  I spray painted the board with metallic blue car paint and then made a few stencils to use when spraying the white stars around the LED holes.

I built a circuit using a PIC micro for controlling the LEDs and wrote the software to attempt to simulate a twinkling effect.  See the video below for a short clip of the effect.