Control Arduino with audio?

I was wondering if it was possible to connect an audio source to an Arduino with a 3.5mm cable (i.e. iPhone) and play different sounds that the Arduino would recognise to carry out different tasks. I have an Arduino Uno.

Thanks

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simon.monk over 12 years ago +1

Yes, it is. I do just that but for Android rather than iPhone in my book 'Arduino + Android Projects for the Evil Genius'. One-way from the Android tablet to the Arduino in my case, but 2-way is possible…
Former Member over 12 years ago +1

You could always build a clap circuit with an opamp to take an audio signal and pull one of the arduino pins high. Then based on the number of times the pin is pulled high it can perform different functions…

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0 Former Member over 12 years ago

You can make this easily by this circuits. And some coding of Audio inputs. Make sure about for which tone you want to do some task. if you want to observe the waveforms then Download Wavepad Sound Editor
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0 Former Member over 12 years ago

You can make this easily by this circuits. And some coding of Audio inputs. Make sure about for which tone you want to do some task. if you want to observe the waveforms then Download Wavepad Sound Editor
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