Piezo Electric Vibration Sensor Module

The Piezo Vibration Sensor is based on piezoelectric transducer. It is well known that  piezoelectric materials responds to strain (deflection) changes or applied force by generating a measurable output voltage.  This output voltage is proportional to the strength of shock or vibration.  So you can measure and characterize the vibration.

Pin definition:

•  S: output signal from the sensor (connected to Arduino analog input)
• +:  Voltage supply (VCC = 3.3 – 5)
•  -: ground (GND)