Building LASER Harp with an Arduino

Homemade DIY Laser Harp using a 200mW green laser. Using an Arduino Microprocessor to control the laser and galvanometer, we produced 7 beams. Detecting reflected light from whatever breaks the beams we can determine which note to play. The MIDI output is fed into a virtual MIDI synthesizer running on a laptop to produce the sounds. Challenging project, but worth the effort.
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