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Author Topic: Simple tones on a pcb piezo  (Read 601 times)
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South East USA
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Would this make some soft tones with the TONE() function driven directly off a I/O pin with a small resistor?
http://www.radioshack.com/product/index.jsp?productId=2062403#stuff-you-want
...it says 12volts, but it should still make some noise on 5 shouldn't it, just not too loud?
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just try it, too low voltage will certainly not blow the thing
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Rob Tillaart

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I was driving audio directly to a headphone ear-bud without a resistor, it still works. I only added a resistor later to make the circuit better. ;-) On my better headphones I still get a good volume, but it doesn't blow the thing up.

Wk
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