What it is
The SW-420 Vibration Sensor Module for Arduino is a simple shock and vibration detector that can trigger a fast response when your project senses tapping, movement, impact, or machine vibration. It is useful for Arduino alarms, anti-tamper devices, robotics, and equipment monitoring, and it uses a basic signal connection rather than I2C, SPI, or UART.
Pins
Refer to the silkscreen labels on the board/module and the listing photos for exact pin names. Pinout and datasheet details can vary by module revision, so confirm the labels before wiring to Arduino, ESP32, or Raspberry Pi GPIO.
Technical Specifications
| Item | Details |
|---|---|
| Product | SW-420 Vibration Sensor Module for Arduino |
| Model | SW-420 |
| Function | Detects shock, tapping, movement, impact, and vibration |
| Output / Interface | Basic signal connection; not an I2C, SPI, or UART module |
| Best for | Alarms, anti-tamper devices, robotics, equipment monitoring, DIY automation |
| Compatible platforms | Arduino and other microcontroller platforms |
| Operating voltage | Varies by module revision |
| Pinout / datasheet | See listing photos |
Frequently Asked Questions
How do I connect the SW-420 vibration sensor module to an Arduino?
Use the module's power and signal connections as labeled on the board, then read the output from an Arduino input pin. Check the silkscreen and listing photos for the exact pinout on your module revision.
Does the SW-420 vibration sensor use I2C, SPI, or UART?
No. This module uses a basic signal connection for simple shock and vibration detection, so it is not used like an I2C, SPI, or UART sensor.
Can I use the SW-420 with ESP32 or Raspberry Pi?
It can be used with other microcontroller platforms through a basic signal connection. Confirm the module pinout and voltage compatibility for your specific board before wiring it to ESP32 or Raspberry Pi GPIO.
What can the SW-420 sensor detect?
It is designed to detect tapping, movement, impact, shock, and machine vibration. It is meant for quick vibration detection rather than precise measurement.
Where can I find the SW-420 pinout or datasheet?
Start with the board silkscreen and the listing photos, since labels and layout can vary by module revision. If you need deeper integration details, search the SW-420 model name with datasheet and compare it to your board.