The repo bridges both instruments (Koheron CTL200 seed + Agiltron M511
EDFA), so 'koheron-esp32-bridge' was too narrow. Align the repo name and
descriptions to the identifier the whole stack already uses
(butterfly_edfa_rack): README title, Makefile/platformio headers, and the
homeassistant/ copies. Device id, MQTT topics and entity ids are
unchanged, so no reflash or lost HA history. Sibling HA repo renamed to
butterfly-edfa-rack-homeassistant.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ESP32 firmware bridging the 1550 nm MOPA (Koheron CTL200 seed + Agiltron
M511 two-stage EDFA) to MQTT/HA as a single device. Telemetry and control
for both instruments verified end-to-end: MQTT command -> seed lasing ->
booster ramp to 27 dBm (~515 mW) at the documented 2500 mA operating point.
- PlatformIO/Arduino project, project-local venv, Makefile upload flow
- Koheron ASCII driver on UART2; Agiltron binary 0x55AA driver on UART1
- HA discovery (sensors, binary_sensors, switches, numbers); LWT availability
- Static IP, firmware current clamps on seed and booster pump
