Arduino laserharp circuit

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Josey, Brian; Salvagno, Anthony; Salvagno, Anthony; koc, Steven j (2012): Arduino laserharp circuit. figshare.
Retrieved 03:54, Dec 01, 2015 (GMT)


Circuit for an Arduino based laserharp made from four resistors, three phototransistors and a speaker. Laser light passes through a diffraction grating at the bottom where it then splits and strikes three different phototransistors. To play a note, one of these beams of light needs to be interrupted.


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