Vibration Sensor Brick is a module based on a vibration trigger switch. When in the stationary state, the indicator LED is OFF. When subjected to external vibration touch to achieve the appropriate vibration force, or move away from the speed of the appropriate (partial) effort, the conductive pin will produce an instant turn-on (ON) state. At that time, electrical characteristics changed. While if the external force disappears, electrical characteristics will restore the OFF state. Through Arduino board D13 port indicator LED on/ off, you can clearly see how the vibration sensor works. This module can be used in vibration testing, reporting theft alarms, smart car,s and so on.