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Topic: Turn light on while play sounds (Read 284 times) previous topic - next topic


I want to realise for a computer-game a circuit, which trigger a relais while a sound comes out of the 3,55mm jack from my computer!
Its just a telephone- Ring-Sound! There are no other sounds.

How could i realise the circuit?

The relais has to trigger a 9-12 v Signal light.

It could based on Arduino uno, or just on soldering...

Thanks a lot,

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