WSAL14542 – Speaker for micro – bit/en
Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.
Summary
This expansion connects an integrated speaker and the audio amplifier IC NS8002 to a micro:bit. It provides a headphone jack, a switch for device selection, and a rotary volume control.
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Technical overview
- Integrates the audio power amplifier IC NS8002, a high-quality speaker, and a headphone jack.
- Dimensions: 36.52 mm × 30.72 mm.
- Operating voltage: 2.0 V to 5.5 V.
- The switch selects the playback device: right position routes to the headphone output; left position uses the onboard speaker.
- The rotary knob controls volume: turning it left increases volume, turning it right decreases volume.
- Connects using either DuPont wires or alligator clip wires, both included in the package.
- Pin mapping: 3V3 (power positive), GND (ground), and pin 0 (audio output).
- Officially recommended programming paths are TypeScript (graphical, makecode.microbit.org) or MicroPython (online or offline via the Mu application).
Commands and examples – verify before use:
music.playTone(440, 1)
music.startMelody([440, 494, 523], 1)
Notes and version constraints
- Exact API syntax for music commands is version-dependent; consult the current micro:bit documentation.
- The source material does not contain explicit command strings; the examples shown are generic representations.
- No information on compatibility with specific micro:bit versions or firmware states.
- No safety, certification, or warranty details appear in the source text.
Source and revision record
- Speaker for micro:bit - Waveshare Wiki
- Source revision: 69129
- Captured: 2026-08-30T04:22:17+00:00
- SHA-256:
037ec3c5455c3c231f8898a5c1c459812faed614b6886f9d6dbf565b6f8ef7e5