Seeed grove physical sensor modules seeed studio 101020031 the grove piezo vibration sensor from seeed studio detects vibration and outputs a logic 1 when it exceeds a threshold set by the onboard potentiometer applications include car alarms security systems low power wake up switch and moreseeed provide technical documentation example projects and software libraries on their product pages if you require this information please visit this products page seeed 101020031 grove piez