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Need to filter low voltage from a piezo buzzer circuit [closed]

I have a 6-28VDC piezo buzzer I'm using at 24VDC. The line has 3-4 VDC when the output is off, which has a soft but annoying buzzer constantly. What the the easiest way to filter that out so I only ...
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Using Piezzo Electric buzzer 10V with an Arduino Lilypad USB

I bought a 10 V Piezzo electric buzzer and I wonder how to connect it to an Arduino (in my case a Lilypad USB, but the question stands for any Arduino I guess...). I hadn't realized this was a 10V ...