Vibration Sensor

The SW-420 vibration sensor module detects vibrations, shocks, and movement — outputting a digital signal the instant disturbance is detected. With adjustable sensitivity and a simple 3-pin interface, it's the easiest way to add impact or tamper detection to any project without complex signal processing.

🔹 Key Applications

• Anti-tamper alarms for enclosures and equipment

• Earthquake early warning systems

• Vehicle impact and collision detection

• Vibration-triggered photography and video recording

• Machine vibration fault monitoring

• Security alarm triggers for doors and windows

🔹 Why Choose This Module?

• SW-420 tilt/vibration switch — robust and reliable

• Adjustable sensitivity threshold — tune to your sensitivity needs

• Digital output — clean HIGH/LOW signal, no ADC needed

• LED indicator — visual confirmation of vibration detection

• 3.3 V and 5 V compatible — universal MCU compatibility

🔹 Technical Specifications

• Sensor: SW-420 vibration switch

• Output: Digital (D0)

• Operating Voltage: 3.3 V – 5 V DC

• Sensitivity: Adjustable via potentiometer

• Indicator: LED on detection

🔹 What's Included

1 × SW-420 Vibration Sensor Module

🔹 Pro Tip

💡 Mount rigidly to the surface you want to monitor — loose mounting causes false triggers. Adjust the potentiometer to maximum sensitivity, then back off slowly until false triggers stop. For security applications, combine with a 555 timer latch circuit so a brief vibration triggers a sustained alarm output.

⚠️ Note: Always ensure proper heat dissipation and correct voltage configuration before powering connected devices.