Sound and Buzzer Module

• Versatile piezo-element module for both input or output
• Frequency response: 0-20KHz
• Sound pressure level at 10cm: 75dB (min)
• Built-in 1M resistor for knock sensor functionality

The Sound and Buzzer Module can be used as a noise-maker driven by your microcontroller for audible feedback of events, and it can also be used as a knock-detector input to sense events and react to them.