Active Buzzer Module 5V DC, Plug-and-Play Beeper Sounder Board for Arduino, Simple ON/OFF Alarm Output, 2-Pack Electronic Buzzer for DIY Projects, Sensors, Robotics & Alerts
The Active Buzzer Module (5V DC) is a simple, reliable sound component for Arduino and DIY electronics projects. Because it’s an active buzzer, it contains an internal oscillator, so it will produce a steady beep sound as soon as you apply a HIGH signal (or power, depending on module pinout).
The Active Buzzer Module (5V DC) is a simple, reliable sound component for Arduino and DIY electronics projects. Because it’s an active buzzer, it contains an internal oscillator, so it will produce a steady beep sound as soon as you apply a HIGH signal (or power, depending on module pinout). This makes it much easier than a passive buzzer, which requires a PWM/tone signal to generate sound.
Use this module for alarm systems, warning indicators, timers, door alerts, sensor triggers, robotics status beeps, and educational projects. It’s perfect for beginners because it needs only basic ON/OFF control and works well with common microcontrollers.
Active vs Passive (Quick Difference)
- Active buzzer: Beeps with simple ON/OFF (digital HIGH/LOW)
- Passive buzzer: Needs a tone/PWM frequency signal to make sound
If you want the easiest buzzer for alarms and alerts, active is the right choice.
Key Features & Benefits
- Plug-and-Play Sound Output: Simple digital control for instant beep
- 5V Compatible: Great match for Arduino UNO/Nano and 5V systems
- Loud and Clear Alarm: Good for notifications, warnings, and status signals
- Module Format: Easy wiring with breadboard-friendly pins
- 2-Pack Included: Ideal for multiple builds, replacements, or classroom use
Typical Pinout (Common 3-Pin Modules)
| Pin | Function |
|---|---|
| VCC | 5V power |
| GND | Ground |
| SIG / IN | Digital control input (HIGH = ON) |
Note: Some boards label pins as S, +, -. Always match VCC and GND correctly.
Typical Specifications
| Item | Details |
|---|---|
| Type | Active buzzer module (internal oscillator) |
| Operating Voltage | 5V DC |
| Control | Digital ON/OFF (HIGH/LOW) |
| Use | Alarm, buzzer alert, beeper indicator |
| Quantity | 2-Pack |
Common Applications
- Motion sensor alarms and door alerts
- Arduino timers and countdown beeps
- Robotics status indication (start/stop/error)
- Water level / gas / flame sensor alerts
- School projects and STEM learning kits
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