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Vibration Sensor Module SW-420
Sensors
Product ID:
HF403079
Stock:
30 units available
Details:
The SW-420 Vibration Sensor Module is a low-cost sensor used to detect vibration, movement, or shock...
The SW-420 Vibration Sensor Module is a low-cost sensor used to detect vibration, movement, or shocks in a surface or device. It’s commonly used in security alarms, motion detection, and smart electronics projects with Arduino, Raspberry Pi, or ESP boards.
🔹 Key Features:
Sensor Type: SW-420 vibration sensor (spring-type)
Operating Voltage: 3.3V – 5V DC
Output Type: Digital (HIGH/LOW) signal
Sensitivity: Adjustable via onboard potentiometer
Indicator LEDs:
Power LED – shows module is powered
Signal LED – turns on when vibration is detected
Size: Compact, easy to integrate in DIY projects
🔹 Working Principle:
Inside the SW-420 sensor is a small spring and a metal contact.
When there is vibration, shock, or movement, the spring makes contact, generating a signal.
The onboard LM393 comparator IC processes this signal.
If vibration exceeds the set threshold:
Digital Output (D0) → HIGH (1)
Otherwise → LOW (0)
🔹 Pinout:
VCC → 3.3V – 5V supply
GND → Ground
DO → Digital output (to microcontroller input pin)
🔹 Applications:
Burglar/security alarm systems (detecting knocks, vibrations, or tampering).
Earthquake/structural monitoring (basic vibration sensing).
Motor vibration monitoring in machines.
Interactive projects (tap-controlled devices).
Smart door knock detector with Arduino.
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PKR 150.00
