Gravity: Digital Buzzer for Arduino / ESP32 / micro:bit / Raspberry Pi

The Gravity Digital Buzzer is an easy-to-use passive sound generator designed for interactive electronics and acoustic alert systems. Operating from 3.3V to 5V, it is ideal for students, hobbyists, and educators working with platforms such as Arduino, micro:bit, ESP32, and Raspberry Pi.

Frequency-controlled audio output

This passive buzzer produces sound based on the input signal frequency driven by high and low logic states. Varying the oscillation frequency allows you to create different tones, beeps, and simple tunes for interactive projects.

Gravity plug-and-play connectivity

Equipped with the standard Gravity digital interface, this module allows effortless wiring when paired with an IO expansion shield. Clear digital labelling and functional silkscreen icons make connection straightforward for beginners and students.

Broad microcontroller compatibility

Supporting an operating voltage range from 3.3V to 5V DC, the buzzer integrates smoothly with both 3.3V and 5V logic levels. This ensures out-of-the-box compatibility with Arduino, BBC micro:bit, ESP32, and Raspberry Pi controllers.

Durable hardware design

The module is manufactured with an immersion gold surface finish and a robust connector for reliable long-term performance. Standard 3mm mounting holes spaced at intervals of 5cm enable easy mechanical assembly into enclosures and chassis.

Included package contents

Each unit comes with one digital buzzer module and one Gravity digital sensor cable (FIT0011). This provides the necessary wiring to connect directly to your development board or expansion shield.

Downloads & documentation

• Product wiki (DFRobot)