SW-420 Vibration Sensor Module – Motion Detection & Vibration Switch for Arduino, ESP32, Raspberry Pi & Security Alarm Systems (Pack of 2)

The SW-420 Vibration Sensor Module is a highly sensitive motion detection module designed to detect vibrations, knocks, or shakes in its environment. Featuring an SW-420 spring-type vibration switch coupled with an LM393 voltage comparator IC, this module outputs a digital signal when sudden movements or vibrations are detected, making it ideal for security alarms, anti-theft systems, vibration-activated devices, and DIY automation projects.

With adjustable sensitivity via an onboard potentiometer and a straightforward 3-pin interface, the SW-420 module offers hassle-free integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers. It is a perfect solution for detecting physical impacts, shocks, and motion in various embedded applications.

Key Features:

• Operating Voltage: 3.3V – 5V DC

• Detection Mechanism: Spring-type vibration switch (SW-420)

• Comparator IC: LM393 for stable digital output

• Output Signal: Digital High/Low (motion detected or not)

• Adjustable Sensitivity: Onboard potentiometer to fine-tune detection sensitivity

• Onboard LED Indicators: Power LED and status LED for vibration detection

• Compact PCB Design: Easy to mount in DIY projects and security systems

• Compatible With: Arduino, ESP32, Raspberry Pi, and other development boards

Applications:

• Anti-Theft Alarm Systems

• Vibration-Triggered Alarms & Notifications

• Smart Motion Detection for IoT Projects

• Robotic Collision and Impact Detection

• Machinery Vibration Monitoring

• DIY Security and Automation Projects

• Shock/Impact Detection in Embedded Systems

Package Includes:

• 2 x SW-420 Vibration Sensor Module (with LM393 Comparator)

Why Choose This Vibration Sensor Module?

• Simple digital output for quick microcontroller interfacing.

• Adjustable sensitivity for customizable vibration detection.

• Ideal for security alarms, motion-triggered devices, and DIY automation.

• Compact, low-power design suitable for portable and embedded projects.

• Compatible with Arduino IDE, ESP32 firmware, and Raspberry Pi setups.