Mini Piano Module for micro:bit, Touch Keys to Play Music

Capacitive Touch Keyboard Interface: Features 7 piano keys (C, D, E, F, G, A, B) and 4 function keys operating via capacitive touch sensing for responsive musical input without mechanical wear.

Onboard High-Quality Buzzer: Equipped with a built-in buzzer for playing musical notes, custom melodies, and sound effects directly from the module.

TTP229 Touch Controller IC: Driven by the reliable TTP229 capacitive touch chip communicating over an I2C protocol interface, conserving precious micro:bit GPIO pins.

Programmable Onboard RGB LEDs: Integrates 4 programmable APA102 RGB LEDs to display dynamic visual light effects, note indicators, or beat matching synced to music playback.

Integrated Edge Socket Connector: Direct vertical insertion slot designed for seamless connection with BBC micro:bit V1 and V2 boards without extra wiring or tools.

Module Construction: Built on a multi-layer FR-4 glass epoxy PCB featuring gold-plated capacitive touch pads and high-density surface-mount components (85 mm x 56 mm).

Operating Voltage & Logic: Operates logic and audio circuitry on 3.3V DC supplied directly through the attached micro:bit board.

Handling Precautions: Hold carefully by the outer circuit board edges. Keep touch pad surfaces clean and free of conductive oils or moisture to ensure accurate touch sensitivity.

Environmental Limits: Operating temperature range spans 0°C to +70°C. Keep protected from static discharge, metallic debris, and direct liquid exposure.

Interactive STEM Music & Coding Companion: Market as an ideal creative starter kit for students and makers to learn hardware programming through music composition and audio synthesis.

Zero-Assembly Plug-and-Play Design: Highlight that users can slide their micro:bit straight into the board slot and start playing synthesized tunes immediately using MakeCode blocks or Python.

Recommended Cross-Sell Add-ons: Pair with BBC micro:bit V2 Boards, Micro-USB Cables, and Protective Silicone Cases.

Versatile Application Potential: Great platform for building custom mini synthesizers, touch-activated game controllers, musical memory games, and interactive sound installations.