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Comment on Keep the Cat Out of the Cradle with Arduinoparent

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That's the great part. You have the source code, just change the value of 'freq'!. The piezo should be able to hit high enough frequencies.

I was wondering about that. I think I'll try it. You just have to change the second number in the playTone(1000, 500); call.

That's what I was wondering - I think I'm going to try this out.

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