A
Anonymous
Apr 15, 2026
Rating: 5/5
Reliable Knock Detector
Using this for a security alarm prototype. Triggers consistently on knocks.
Description
Vibration Sensor Piezo Element Tap Vibration Switch Module
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital Switching (0/1) |
| Sensitivity Control | Adjustable Potentiometer |
| Interface Pins | 3-Pin Header (VCC, GND, DO) |
| PCB Length | 32mm |
| PCB Width | 14mm |
| Mounting Hole Size | 3mm Diameter |
| Operating Temperature | -30°C to +70°C |
| Indicator LEDs | Power (Red) and Trigger (Green) |
| Microcontroller Compatibility | Arduino, Raspberry Pi, STM32 |
5 reviews
A
Anonymous
Apr 06, 2026
Rating: 5/5
Perfect for School Project
Easy to wire and understand. Documentation online helped too.
A
Anonymous
Apr 05, 2026
Rating: 4/5
Sensitive but needs tuning
Good module but took some time to calibrate the potentiometer for my specific use case.
A
Anonymous
Feb 06, 2026
Rating: 4/5
Good value
Compact size fits well in small enclosures. Wish it had analog output option.
A
Anonymous
Feb 04, 2026
Rating: 5/5
Great for Arduino Projects
Works perfectly with my Uno. Sensitivity adjustment is smooth and responsive.
5 FAQ
Q: Is the output analog or digital?
A: This module provides a digital switching output (HIGH/LOW).
Q: What is the detection range?
A: It detects physical contact vibrations on the surface it is mounted to.
Q: How do I connect this to Arduino?
A: Connect VCC to 5V, GND to GND, and DO to any digital pin.
Q: Can it detect voice sounds?
A: It detects vibrations/shocks, not airborne sound waves like a microphone.
Q: Does this work with 3.3V logic?
A: Yes, it operates within 3.3V to 5V DC range.
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