Piezoelectric Vibration Sensor Module 5V TTL Output for Arduino

Piezoelectric Vibration Sensor Module – 5V DC Digital TTL Output

Detect vibrations, taps, and motion with precision using this compact Piezoelectric Vibration Sensor Module. Operating at 5V DC with a clean digital TTL output, it integrates seamlessly into Arduino, Raspberry Pi, IoT, and other microcontroller-based projects. Whether you're building a smart home alarm, motion-triggered display, or an interactive electronics prototype, this module delivers fast, reliable switching response in a tiny 20.5 × 20.5 mm metal housing.

Key Features

• Digital TTL Output: Clean HIGH/LOW signal output — easy to read directly by any microcontroller without additional ADC conversion
• 5V DC Operating Voltage: Compatible with standard Arduino, ESP8266, ESP32, and most TTL-level development boards
• Piezoelectric Sensing Element: Responds to physical tap, knock, or vibration with high sensitivity and fast response time
• Compact Metal Construction: Durable 20.5 × 20.5 mm form factor designed for embedded and breadboard use
• Onboard Sensitivity Adjustment: Knob module variant allows fine-tuning of detection threshold to suit your application
• Low Power Design: Efficient operation ideal for battery-powered or always-on IoT deployments
• Available in Multi-Packs: Choose from 1PC, 5PCS, 10PCS, or 20PCS to suit prototyping or production runs

Specifications

What's in the Box

• Piezoelectric Vibration Sensor Module(s) — quantity per selected option

Perfect For

• Arduino and microcontroller DIY projects
• IoT smart home vibration and knock detection
• Tap-triggered switches and interactive installations
• Anti-theft and security alert circuits
• Robotics and automation sensing

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Frequently Asked Questions

Q: What does the Piezoelectric Vibration Sensor Module detect?

A: This vibration sensor module detects physical taps, knocks, and vibrations on the surface it is mounted to. When a vibration event is detected, the module outputs a digital TTL HIGH or LOW signal that any 5V microcontroller — such as an Arduino or ESP32 — can read instantly, making it ideal for knock detection, motion-triggered events, and security alert systems.

Q: Is this sensor module compatible with Arduino and other development boards?

A: Yes. The module operates at 5V DC and outputs a standard TTL-level digital signal, which is directly compatible with Arduino Uno, Nano, Mega, ESP8266, ESP32, Raspberry Pi (with a logic-level converter), STM32, and most other common development platforms used in IoT and electronics prototyping.

Q: What is the difference between the "Tap the sensor" and "Knob module" variants?

A: The "Tap the sensor" variant is a fixed-sensitivity piezoelectric sensor that triggers on direct tap or vibration input. The "Knob module" variant includes an onboard adjustable potentiometer (knob) that lets you fine-tune the detection sensitivity threshold to match your specific application environment — great for filtering out background vibrations or setting a precise trigger level.

Q: Can I buy multiple units for a project or production run?

A: Absolutely. The module is available in packs of 1PC, 5PCS, 10PCS, and 20PCS, making it convenient whether you are building a single prototype or deploying multiple sensor nodes in a larger IoT or automation project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.