Audio Expansion Module with 2×5W Speakers for Raspberry Pi Pico, Waveshare WSR-20096

The Waveshare Audio Expansion Module with 2×5W Speakers for Raspberry Pi Pico provides a compact onboard audio solution specifically designed to attach to the Pico development board. The module integrates a stereo amplifier and two 5 W speakers to deliver immediate audio output for embedded projects, educational kits, prototypes and simple media playback without the need for an external amplifier or separate speakers. It mounts directly to the Pico form factor and exposes audio output functionality while keeping the overall footprint small and accessible for breadboard or enclosure use.

Advantages

This audio expansion module combines an integrated stereo amplifier and two matched 5 W speakers in a single, Pico-compatible board, reducing components and wiring for a cleaner prototype. Onboard speakers eliminate the need to source and connect separate speakers or an external amp, simplifying development and deployment. The design preserves GPIO access for common Pico use while providing a plug-and-play audio output option suitable for voice prompts, simple music, alarms and educational demonstrations.

Suitable for

• Embedded audio playback in Raspberry Pi Pico projects
• Educational electronics kits and classroom demonstrations
• Prototyping voice prompts, notifications or simple sound effects
• Portable or compact media playback devices based on Pico

Key specifications

• Output: Two integrated 5 W speakers (stereo)
• Form factor: Designed to attach to Raspberry Pi Pico
• Power: Onboard amplifier powered from Pico-compatible supply
• Connectivity: Direct header connection to Pico pins for audio and power
• Typical use: Onboard audio output without external amplifier or speakers

How to use

Attach the module to a Raspberry Pi Pico by aligning and inserting the Pico into the module's headers according to the board markings. Provide appropriate power to the Pico via USB or other recommended supply; the module draws audio power from the Pico power rails. Use the Pico's audio-capable GPIO or PWM channels and corresponding software libraries or drivers to output audio signals. Adjust software volume and audio format settings on the Pico; the onboard amplifier will drive the integrated speakers. Place the assembled Pico and module on a flat, non-vibrating surface or into a suitable enclosure that allows sound to exit without obstruction.

Usage recommendations

For reliable audio performance, ensure the power supply can deliver sufficient current for both the Pico and the amplifier under peak audio load. Avoid enclosing the module in fully sealed cases; provide vents or openings for sound to exit. When using in battery-powered applications, test runtime under typical audio usage and consider adding power-management features in firmware to reduce consumption during idle periods.