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6 thoughts on “Draw on LEDs using lasers”
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Reminds me a little of Eiji Hayashi’s LED game Laser Command which also uses a laser to control. Plus he includes quite a bit of information on how to build it yourself.
http://www.cs.cmu.edu/~ehayashi/projects/lasercommand/
Oh right! Yeah, that’s the one to look at.
A quick google for “Matrix LED unit with pattern drawing and extensive connection” finds a 23MB pdf on this site: http://akita11.jp/plan/LT/