Keyestudio Passive Buzzer Sound Module For BBC micro:bit

This Keyestudio passive buzzer module is an easy-to-use audio expansion board designed specifically for the BBC micro:bit. It is ideal for students, educators, and hobbyists looking to add custom sound effects, alarms, or musical melodies to their coding projects.

Custom frequency sound generation

Because this passive buzzer lacks an internal oscillation circuit, it is driven by external pulse frequencies. By sending different digital square wave frequencies from your micro:bit, you can programme custom sound effects or even code the melody of a song.

Simple crocodile clip connections

The module features six connection rings grouped into pairs for easy wiring. The dual G rings connect to ground, the V rings to 3V power, and the S rings to signal pins 0, 1, or 2.

Designed for BBC micro:bit

This module is fully compatible with the BBC micro:bit control board, allowing for quick integration. You can easily connect the rings to your micro:bit using standard crocodile clip lines.

Low power operating voltage

Operating on a working voltage of DC 3.0V to 3.3V, this energy-efficient module is perfectly matched to the micro:bit's power output. It outputs a digital square wave signal to generate tones.

Compact and lightweight design

Measuring just 31mm by 27mm with a thickness of 4.5mm, this ultra-compact board fits easily into tight project enclosures. It weighs a mere 2.3g, making it ideal for lightweight mobile robotics.

Safe and certified construction

Built with environmental safety in mind, the module carries ROHS certification. This makes it a safe choice for classroom environments and student-led STEM projects.