BUZZER

                                         BASICS

Electronic buzzer also called as piezo buzzer is used to produce rich sounds. it is based on the principle of reverse piezo electric effect. whenever electric current is applied to piezo buzzer a sound is produced. the level of sound depends upon the current passing through the buzzer. electric buzzers are available in various sizes. The maximum voltage that a buzzer can withstand without damaging is written on the piezo buzzer. Buzzer do have polarity and it is written on the buzzer. To  produce sound from the Buzzer, it is directly connected to battery or power supply