In simplest terms a Piezo Buzzer is an electronic device that produces a tone alarm or sound Piezo buzzer is like tiny little speakers but unlike speakers it does not require an amplifier or other circuit to drive When voltage is applied to the piezo its size grows and shrinks and tone generates nbsp Pin configurations of Piezo buzzer Pin Number Pin Name Description recognize by the symbol or taller terminal lead Can be powered by V DC ndash recognized by a short terminal lead generally connected to the earth of the circuit Features of a Piezo buzzer some important
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