hatsu_ino
hatsu (初, first sound) + ino (Arduino) — the first sound your car makes.
An Arduino-based JDM car melody box that plays a WAV audio file when you start your car. When the ignition turns on, it picks a track from an SD card, plays it through an amplifier, and enters deep sleep — drawing ~0.1µA until the next start.
Boards
| Version | Description |
|---|---|
| v0 | Arduino Nano + PAM8403 amplifier, first production run |