10.6084/m9.figshare.92060.v1
Brian Josey
Brian
Josey
Anthony Salvagno
Anthony
Salvagno
Anthony Salvagno
Anthony
Salvagno
Steven j koc
Steven
j koc
Arduino laserharp circuit
figshare
2012
308l2012
308L2012
electronics
electronics
Applied Physics
2012-05-13 15:22:44
Figure
https://figshare.com/articles/figure/Arduino_laserharp_circuit/92060
<p>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.</p>