Arduino sensor – Hamtech Electronics Technologies https://hamtechtechnologies.com Wed, 12 Nov 2025 07:19:09 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.3 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp Arduino sensor – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 SW-420 Vibration Sensor https://hamtechtechnologies.com/product/sw-420-vibration-sensor/ https://hamtechtechnologies.com/product/sw-420-vibration-sensor/#respond Wed, 12 Nov 2025 07:19:09 +0000 https://hamtechtechnologies.com/?post_type=product&p=159 The SW-420 Vibration Sensor Module is a reliable and easy-to-use vibration detection unit that uses an SW-420 vibration switch and an LM393 voltage comparator to detect motion or shocks. It outputs a digital signal (HIGH or LOW) when vibration is detected.

The onboard 10KΩ potentiometer (preset) allows you to adjust the vibration sensitivity threshold. The LM393 comparator compares the voltage from the vibration sensor and the preset reference voltage, triggering a digital output when vibration exceeds the threshold.

This module operates on 3.3V to 5V, making it compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers. It includes onboard LED indicators for power and signal output, plus a mounting hole for easy installation in various enclosures or control panels.

Key Features:

  • Operating Voltage: 3.3V – 5V

  • Output Type: Digital (0 or 1)

  • Adjustable sensitivity using onboard potentiometer

  • LM393 wide voltage comparator for stable output

  • Power and signal indicator LEDs

  • Operating Current: ~15mA

  • PCB Size: 3.2 cm x 1.4 cm

  • Mounting Hole for easy installation

Applications:

  • Security and vibration detection systems

  • Earthquake or motion sensing projects

  • Smart alarm systems

  • Motor vibration monitoring

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