LilyPad Buzzer

LilyPad Buzzer is a compact sound output module designed for wearable electronics and e‑textile projects. Developed for the LilyPad wearable platform created by Leah Buechley and SparkFun, this miniature buzzer board features large sewable pads that integrate directly into fabric circuits. The lightweight audio module generates tones through digital I/O toggling, enabling audible feedback for interactive garments, soft robotics, and embedded textile prototypes. A thin 0.8 mm PCB profile keeps the component comfortable inside clothing while maintaining reliable electrical connections through conductive thread, making this buzzer module well suited for wearable computing, creative coding garments, and interactive textile installations.

Note: Avoid washing any portion of a project that contains this buzzer module, as washing may damage the component.

Designed for Sewable Wearable Circuits

This LilyPad-compatible audio module features large conductive pads specifically shaped for sewing with conductive thread. The circular board layout integrates naturally into fabric-based circuits, allowing designers to embed sound functionality directly into clothing or soft accessories. Unlike traditional rigid electronics, this wearable buzzer board maintains comfort and flexibility within textile systems while supporting stable electrical connections required for interactive garments and smart fabric prototypes.

Simple Digital Tone Generation

Audible signals are produced by toggling two digital I/O pins on a LilyPad main board at different frequencies. This simple control method enables programmable tones, alerts, and sound effects without additional audio circuitry. The compact inductive buzzer responds directly to frequency changes, making the component suitable for notification sounds, wearable feedback systems, and interactive fabric projects where lightweight audio output is required.

Low‑Profile and Pocket‑Friendly Sound Output

The ultra-thin PCB construction and small 20 mm diameter allow this wearable buzzer board to remain unobtrusive inside garments. Sound output is loud enough to be heard through clothing or inside a pocket without becoming excessively noisy. This balance makes the module useful for subtle alerts, wearable interaction cues, and discreet feedback in smart clothing prototypes.

Applications include interactive garments, textile-based alarms or notifications, soft robotics projects, wearable gaming accessories, and experimental STEM Education demonstrations involving e‑textiles and programmable clothing.