The Active Buzzer is an electronic sound-producing component that generates a continuous tone when DC power is applied. Unlike a passive buzzer, an active buzzer has a built-in oscillator, so it does not require an external audio-frequency signal to produce sound. It is commonly used in Arduino projects, alarms, indicators, robotics, security systems, and DIY electronics.

Features

• Built-in oscillator
• Produces sound when DC voltage is applied
• Simple two-wire connection
• Compact design
• Low power consumption
• Easy to interface with microcontrollers
• Suitable for audible alerts and indicators

Specifications

*Specifications vary according to the specific buzzer model.

Wire Configuration

Apply the appropriate DC voltage between the red and black wires. The buzzer will generate its preset tone.

Applications

• Arduino projects
• ESP32 and microcontroller projects
• Alarm systems
• Security systems
• Door and warning alarms
• Robotics
• Electronic toys
• Timer circuits
• Status indicators
• DIY electronics projects

Advantages

• Simple two-wire operation
• No external oscillator required
• Easy microcontroller interfacing
• Low power consumption
• Compact and lightweight
• Provides clear audible indication
• Easy to install

Package Includes

• 1 × Active Buzzer

Note: Check the buzzer’s rated voltage and polarity before connecting it. Applying a voltage above its specified rating may damage the buzzer. For microcontroller projects, use an appropriate transistor or driver when the buzzer’s current requirement exceeds the GPIO pin’s safe output capability.