![Adafruit Piezo Buzzer - PS1240 [ADA160]](https://m.media-amazon.com/images/I/51Aa1XTqE1L.jpg)
Piezo buzzers are used for making beeps, tones and alerts. This one is petite but loud! Drive it with 3-30V peak-to-peak square wave. To use, connect one pin to ground (either one) and the other pin to a square wave out from a timer or microcontroller. For the loudest tones, stay around 4 KHz, but works quite well from 2KHz to 10KHz. For extra loudness, you can connect both pins to a microcontroller and swap which pin is high or low ('differential drive') for double the volume.
S**S
Not as loud as expected
They made a point to say how loud this little guy was, but to be honest it is not much louder than any of the other buzzers I have used.Nice buzzer. not super loud.
R**O
Ziemlich schwach
Habe versucht den Buzzer an einem Raspberry Pi zu nutzen. Selbst mit einer Verstärker Schaltung ist der Ton der rauskommt so schwach, dass es eigentlich komplett nutzlos ist.
