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You're right. But while I was thinking on this solution another guy used a different solution: two speakerhttps://www.instructables.com/id/Scanning-Laser-Mi...
Great Project! Well done!I wander if it is possible to use directly the entire pickup since there is the laser and the diode to read it's reflection.
Have hou chosen Arduino Nano among boards menù?
Small Temperature and Lightness Sensor Shield
Things to build out of CD/DVD-Drives
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