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Pi Organ | by karl101
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Pi Organ

Circuit Diagram for this: www.flickr.com/photos/kazzle101/7510331412/

If you are building this, remember to test with a 6v battery to power the circuit and use a 3v battery on the GPIO input points before you connect it to the Raspberry Pi.

 

More information: www.g7smy.co.uk/?p=54

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Taken on July 8, 2012