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Active Buzzer
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A simple 5V active buzzer that generates a tone using its built-in oscillator. Just apply a DC voltage and it sounds — no additional signal generation or dri...
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A simple 5V active buzzer that generates a tone using its built-in oscillator. Just apply a DC voltage and it sounds — no additional signal generation or driver circuit required. Ideal for adding audible alerts, alarms, or feedback tones to Arduino and microcontroller projects.
Key Features
- Active Type – Built-in oscillator generates tone with DC voltage only
- 5V Operation – Connects directly to microcontroller I/O pins
- Compact Size – 12mm diameter × 9.5mm height
- Simple Wiring – Just power and ground, no signal generation needed
Specifications
- Type: Active (built-in oscillator)
- Operating Voltage: 5V DC
- Diameter: 12mm
- Height: 9.5mm
Tip: An active buzzer has a built-in oscillator and produces a fixed tone when powered. A passive buzzer requires an external signal (e.g. PWM) to generate sound, allowing you to control the frequency and play different tones.
Also Available
Ideal For
- Arduino and microcontroller alert systems
- Alarm and notification circuits
- Button press feedback
- Electronics learning projects
Package Contents
- 1× Active Buzzer (5V)
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one direction, like from USB ports, batteries, and many plug-pack power supplies. For this fan controller, it matters because it is meant for low-voltage DC fans rather than mains-powered AC fans.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
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Related Tutorials
Free guides on learn.littlebird.com.au
