🔔 The piezoelectric sensor is a thin, round element that generates voltage in response to mechanical stress or vibrations. It’s widely used for knock detection, pressure sensing, or even as a basic microphone or audio buzzer. Its simplicity and effectiveness make it ideal for Arduino and ESP32 projects involving touch, impact, or sound detection.
- ✅ Specifications:
- Sensor Type: Piezoelectric Disk Element
- Outer Diameter: 27mm (typical)
- Output Voltage: Depends on applied pressure/knock
- Terminals: 2 wires (Positive & Ground)
- Fast response to vibrations or taps
- Usable as:
- Vibration sensor
- Knock sensor
- Audio transducer or buzzer
- Can be amplified using Op-Amps for sensitive detection
🔹 Key Features:
✔️ Compact and lightweight
✔️ No external power required – self-generating voltage
✔️ Instant response to mechanical impact
✔️ Great for alarm or interactive input systems
✔️ Works well with analog or digital circuits
📌 Common Applications:
- Knock detection alarms
- Vibration-based triggers
- Interactive music pads or drum kits
- Piezo audio output
- Sound/impact sensor projects
🔸 Product Weight:
Product Weight: 2g
