eTiWi is an electronic tin whistle with a built-in VS1053B General MIDI synth. It generates real-time MIDI from breath and fingering, and supports MIDI play-along by mixing live performance with backing-track MIDI inside the same synth engine.
- Features: real-time whistle-style control, MIDI play-along inside the onboard synth, and USB-MIDI device mode for computer/tablet use.
- Hardware: VS1053B synth plus MCU, with audio outputs for headphones (primary), line-out, and an on-board speaker via amplifier.
- Power: designed around a 2x NiMH battery path and USB-C powered operation.
- Status: early design and documentation stage.
The project is currently in early hardware and firmware planning. Architecture notes, power/audio/interface decisions, and parts candidates are being consolidated before schematic capture, PCB work, and firmware implementation.