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Home / Computer Hardware, Monitors & Peripherals / Vibration Sensor Piezo Element Knock Switch Module with Program Data Included

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Sensor Type Piezoelectric Ceramic
Operating Voltage 3.3V to 5V DC
Output Signal Digital Switch Output (TTL)
Sensitivity Adjustable via Potentiometer
Interface 3-Pin Header (VCC, GND, OUT)
PCB Dimensions 32mm x 14mm x 5mm
Weight 3 grams
Mounting Hole 3mm Diameter
Compatibility Arduino, Raspberry Pi, ESP32
Package Includes 1x Module, 1x Header, Documentation Link

5 reviews

A

Anonymous

Mar 10, 2026

Rating: 4/5

Good value

Solid build quality. Had to tweak the sensitivity pot a bit.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable sensor

Bought 10 for our club project. All working perfectly.

A

Anonymous

Mar 04, 2026

Rating: 3/5

Okay but sensitive

Picks up too much noise sometimes. Needs careful calibration.

A

Anonymous

Feb 05, 2026

Rating: 5/5

Great for learning

The sample code made integration with Arduino super easy.

A

Anonymous

Feb 01, 2026

Rating: 5/5

Perfect for alarm projects

Works exactly as described. Very sensitive to taps.

5 FAQ

Q: Is the output analog or digital?

A: This module provides a digital TTL output signal.

Q: Can I mount this on a metal surface?

A: Yes, but ensure the back does not short circuit with conductive materials.

Q: Where can I find the sample code?

A: A link to the GitHub repository is included in the documentation PDF.

Q: How do I adjust sensitivity?

A: Use the small blue potentiometer on the board to tune detection levels.

Q: Does this work with 3.3V logic?

A: Yes, it operates comfortably between 3.3V and 5V.

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