The PIEZO element is just a standard one that is supposed to be resonant around 24khz. I disconnected the piezo and the port started toggling, as it should. Should I put a pair of HEX invertor drivers in parallel for each output port to drive the piezo element? I am trying to build a small dog whistler, and am using a 9vdc battery, a 78L05 regulator for 5v to the Micro. Doug
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ATTINY13 driving a Piezo transducer directly? The port just locks high .
2009-05-07 by doug_marysnowden