View single post by clockdryve
 Posted: Apr 12th, 2011 06:03 AM
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clockdryve



Joined: Feb 7th, 2010
Location: Des Moines, Iowa USA
Posts: 425
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Here's the link giving information on the IR Diode.

Very simple to make as it only requires 2 parts and solder.

http://atransc.org/techniques/techniques_optical_microphone2.htm