Vibration Sensor Module (SW-420)

The SW-420 Vibration Sensor Module is designed to detect vibrations, shocks, or sudden movements. It uses a spring-based vibration sensor that triggers when movement or vibration is detected. The module includes an LM393 comparator circuit, which converts the sensor signal into a digital output. The detection sensitivity can be adjusted using the onboard potentiometer. This sensor is commonly used in security alarm systems, earthquake detection devices, vibration monitoring systems, and smart automation projects. Key Features Detects vibration and shock Adjustable sensitivity using potentiometer Digital output signal Onboard power and status LED indicators Compact and easy to interface Compatible with Arduino and other microcontrollers Technical Specifications Parameter Value Operating Voltage 3.3V – 5V Output Type Digital Comparator IC LM393 Sensor Type Spring-type vibration sensor Sensitivity Adjustable Pin Configuration Pin Description VCC Power Supply (3.3V–5V) GND Ground DO Digital Output