SW-1801P Vibration Sensor Module – 4-Pin Normally Open Shock Sensor
The SW-1801P vibration sensor module is a high-sensitivity detection module designed to identify vibration, shock, or movement in electronic projects. Featuring a normally open (NO) vibration switch, it activates when motion is detected, making it ideal for alarm systems and motion-triggered applications.
Equipped with an onboard comparator, this module delivers a clean and stable digital output signal that can be easily interfaced with microcontrollers such as Arduino.
Key Features:
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SW-1801P vibration switch – high-sensitivity motion detection
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Normally open design – activates only when vibration is detected
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4-pin interface – easy integration into circuits
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Digital output (HIGH/LOW) – simple connection to microcontrollers
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Onboard comparator (LM393) – stable and clean signal output
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Wide voltage range – operates from 3V to 5V
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Mounting hole – easy installation on projects
How It Works:
- No vibration → circuit remains open (no trigger)
- Vibration detected → internal contact closes momentarily → output signal changes
This makes it ideal for detecting knocks, movement, or shocks in real-time.
Applications:
- Anti-theft and alarm systems
- Vibration and motion detection projects
- Smart cars and robotics
- Earthquake or impact detection
- DIY electronics and Arduino projects
Specifications:
- Model: SW-1801P
- Operating Voltage: 3V–5V DC
- Output Type: Digital (0/1 signal)
- Sensor Type: Normally open vibration switch
- Comparator: LM393
- PCB Size: Approx. 3.1 × 1.4 cm
Package Includes:
- 1 × SW-1801P Vibration Sensor Module (4-Pin)
