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Topic: Simple tones on a pcb piezo (Read 1 time) previous topic - next topic


Would this make some soft tones with the TONE() function driven directly off a I/O pin with a small resistor?
...it says 12volts, but it should still make some noise on 5 shouldn't it, just not too loud?


just try it, too low voltage will certainly not blow the thing
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

WilliamK Govinda

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.


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