Generic SW-18015P Normally-Open Vibration Sensor Module for Arduino - LM393 Comparator
Generic SW-18015P Normally-Open Vibration Sensor Module for Arduino - LM393 Comparator - Image 2
SKU: SENS-4359
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Generic SW-18015P Normally-Open Vibration Sensor Module for Arduino - LM393 Comparator

₹51.00 (Inclusive of all taxes)
Out of Stock

This SW-18015P-based vibration sensor module provides a digital trigger output for detecting shocks and motion in Arduino, Raspberry Pi, and other microcontroller projects. Operating from 3.3V to 5V DC, it integrates an LM393 comparator for clean signal conditioning.

Features

  • High-sensitivity SW-18015P spring-type vibration switch for reliable motion detection.
  • Integrated LM393 comparator ensures clean digital output signal with >15mA drive capability.
  • Wide operating voltage range from 3.3V to 5V DC for compatibility with 3.3V and 5V logic systems.
  • Normally-open (NO) digital output goes LOW upon vibration detection, ideal for microcontroller interrupt pins.
  • Compact PCB (32mm x 14mm) with mounting hole for secure installation in enclosures and prototypes.

Out of stock

Description

This vibration sensor module utilizes a spring-based, normally-open (NO) SW-18015P switch that momentarily closes upon detecting physical shock or motion. The integrated LM393 comparator converts this mechanical event into a clean, debounced digital logic signal, providing a stable LOW pulse output suitable for direct connection to microcontroller GPIO or interrupt pins.

Designed for prototyping and embedded systems, the module operates across a standard 3.3V to 5V DC range, making it compatible with Arduino, ESP32, STM32, and Raspberry Pi platforms. Its output can drive small loads directly or interface with relay modules for alarm systems, triggering events based on physical vibration or impact.

Key Features

  • High-reliability SW-18015P vibration sensor with spring-based contact mechanism.
  • LM393 voltage comparator provides robust signal conditioning and noise immunity.
  • Digital output (DO) provides a clear high/low signal for easy microcontroller integration.
  • Compact, single-sided PCB design with a pre-drilled mounting hole for secure fixture.
  • On-board power and status LED for immediate operational feedback during testing.
  • Optimized performance-to-cost ratio for educational and industrial prototyping applications.

Applications

  • Prototype security systems and theft alarm triggers for enclosures or vehicles.
  • Impact detection and event logging in DIY robotics and smart car projects.
  • Vibration monitoring for industrial equipment condition monitoring and predictive maintenance.
  • Interactive installations and educational electronics kits requiring motion-triggered events.

Technical Specifications

Model / SensorVibration Sensor Module (SW-18015P)
Operating Voltage3.3 VDC to 5 VDC
Output SignalDigital (DO), Normally Open (NO)
Output Drive Capability>15 mA
PCB Dimensions (L x W)32 mm x 14 mm
Key ComponentLM393 Comparator
Switch TypeSpring-based Vibration Switch (SW-18015P)
MountingSingle Fixing Hole

Frequently Asked Questions

What is the operating voltage range for this vibration sensor module?

The module operates from 3.3V to 5V DC, making it directly compatible with both 3.3V logic systems (like ESP32 or Raspberry Pi) and standard 5V Arduino boards without requiring a logic level shifter.

How does the digital output (DO) pin behave when vibration is detected?

The module uses a normally-open (NO) vibration switch. When no vibration is present, the DO pin outputs a HIGH signal. Upon detecting a shock or vibration, the switch momentarily closes, causing the LM393 comparator to pull the DO pin LOW for the duration of the event.

Can this sensor module directly drive a relay or buzzer?

The digital output can source or sink more than 15mA, which is sufficient to drive an LED or optocoupler directly. For driving a relay coil or a buzzer, which typically requires higher current, you should use a transistor driver circuit or connect the module's output to a dedicated relay module's control input.

What is the difference between 'normally-open' and 'normally-closed' in this context?

Normally-open (NO) means the internal sensor switch contacts are open at rest, with no connection. Vibration causes a momentary closure. This module provides a digital LOW pulse when vibration occurs. A normally-closed (NC) sensor would provide a continuous LOW signal at rest and a HIGH pulse when triggered.

Package Includes

  • 1 x Normally-Open Vibration Sensor Module

Additional Information

Weight 0.006 kg
Dimensions 3.2 × 1.4 cm

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