![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgcaaYWOki6Ciwj-u-rSC1ORlZtMuFNi_hfDuT6R_GIdl8Xf1virBQWmFV44zUntsJFWAgr2SS3m6nTrtUl5BVxtu5FCOJ0CAhvBYP7O3EdWnMm9n3yrmCFW0cVNvodXLnejlG/s400/redhead8+01.jpg)
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"RedTed8" is eight LEDs controlled and sequenced (on/off) by Arduino. Each LED is coupled with a photocell; when a LED is active the photocell receives light reducing its electrical resistance allowing the audio to pass through. A flashing LED and photocell cause the audio signal to be cut on and off at a given rate.
Audio sample using a Yamaha Portasound PS-3.
RedTed Number One.mp3