What's the simplest way to check vibration with Arduino? Well, use a vibration sensor from Keyestudio. You can directly plug it on our sensor Shield V5, vibrate this sensor, and Arduino can receive a digital signal, easy to make computation and programs in Arduino. Despite it's simplicity, you can make full use of it with creative thinking, like step counting, crash warning light and so on. Specification: IO Type: Digital; Supply Voltage: 3.3~5V; Size: 22 x 30mm.