Piezo Buzzer Module for Arduino & DIY Projects – 5V Active Buzzer
Piezo Buzzer – 5V Active Buzzer Module with Built-in Oscillator
The Piezo Buzzer is an active sound module that produces a sharp, consistent 2.3kHz tone when powered. No external oscillator or complex code is needed—just connect a DC voltage between 3V and 5V. Ideal for alarms, alert systems, and beginner Arduino projects.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 3V – 5V DC |
| Frequency | 2.3 ±0.3kHz |
| Sound Output | 85dB at 10cm |
| Diameter | 12mm |
| Pin Count | 2 (VCC, GND) |
| Type | Active (with built-in oscillator) |
What You Can Build With This
- Simple door alarm using a magnetic switch
- Temperature threshold alert with a thermistor
- Timer notification buzzer for cooking or study
- Obstacle warning indicator for a robot
Compatibility
Works directly with Arduino Uno, Mega, and Nano (5V logic). Can be used with ESP32 or Raspberry Pi if powered via 5V pin; the 3.3V logic will trigger it without issues. Pairs well with relay modules, sensor boards, and basic LED circuits.
Wiring Notes
Connect the long pin (anode) to a digital output on your microcontroller and the short pin (cathode) to GND. This active buzzer draws less than 30mA, so no current-limiting resistor is required for standard 5V operation.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes. Connect the positive pin to any digital I/O (set as OUTPUT) and the negative pin to GND. No extra components needed.
Can this buzzer play melodies or different tones?
No, this is an active buzzer that produces a fixed 2.3kHz tone. For melodies, use a passive buzzer and control frequency via PWM.
Does it need an external transistor or driver circuit?
Not if powered at 5V. The buzzer’s current draw is under 30mA, which most microcontroller I/O pins can handle directly.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items