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Topic: Difference between a piezo transducer and a piezo sensor (Read 4 times) previous topic - next topic


I am thinking of driving the piezo disc with 9V using a transistor in order to see if a louder sound is possible:

However it seems that the tone() function of the Arduino is not working in that scenario. Is it possible at all or in that case only a buzzer with a built in drive circuit can be used?


Is that transistor okay ? It seems as if the Emitter and Collector are the other way around.

Did you try that toneAC library with twice the volume ?

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