I have been googleing this and searched the forums for the last couple of days. Could someone please explain how to set up a piezo buzzer with an arduino? If I understand it correctly you need to feed it a square wave at the hertz that the buzzer takes. Should I learn to do this on a 555 before the arduino? If nothing else a link to a guide would be good. I am not asking you to do this for me, but some help would be nice. I can't find any info anywhere.
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Thanks and yes I did!