LED PANEL0 Test 1 - Color shift




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Published on Jul 8, 2009

I have a bunch of RGB LEDs, I wanted to make a full-body suit out of a mesh of them, sporting animations, text, whatever. This is my first attempt, having just assembled a 8x16 half-panel. There is no computer controlling this, its just a 555 timer going fast (solid matrix) and slow (scan lines). The couple LEDs that seem to not shift color are because I fried them (a couple dies) while soldering with my grounded iron and the matrix still plugged into a non-isolated 5V supply :(

This is demonstrating the unexpected color-shifting effect. The explanation behind this is very simple; The RGB LEDs in have 3 separate dies, one for each color. The LED case is "water clear" with a lens at top. The effect the tiny lens has is that when viewed at a distance you are only able to see one, two, or three or the colored dies at a time. With all the LEDs oriented in the same direction, a particular angle will show most of a certain mix of color(s).

First public demo will be at Coachella '09!



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