MicroPython sim that runs on https://wokwi.com/pi-pico: KY-040 encoder stands in
for the thumb-roller (rotate=tempo, press=start/stop, hold+rotate=track), an
SSD1306 OLED for the display, and a piezo buzzer for the click. Files:
diagram.json, main.py, ssd1306.py + README with the (manual) setup steps.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>