Minimal, hardware‑synced metronome / bar counter for live electronic musicians.
| Feature | Status |
|---|---|
| MIDI Clock (24 PPQN) input | ✅ |
| Beat / Bar / 16th counters | ✅ |
| BPM auto‑detect with smoothing | ✅ |
| 4‑bar phrase wrap | ✅ (configurable) |
DIN‑5 pin4 ──220Ω──►| 6N138 LED |──220Ω── DIN‑5 pin5 6N138 pin6 → ESP32 GPIO16 Shield 3V3, GND shared
git clone https://github.com/tini2n/midi-metronome.git
cd esp32-midi-metronome
pio run -t upload -e esp32dev # requires PlatformIO
pio device monitor -b 115200