James Bateman (hp-laptop)andClaude Opus 4.8
a227771151
Replace the three-button emergency row (PUMP OFF / SEED OFF / SHUTDOWN) with one full-width red SHUTDOWN button, moved to the top of the view. It runs script.butterfly_edfa_shutdown (pump-1 to 0, booster off, then seed off) with no confirmation, so it acts immediately. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
butterfly-rack-homeassistant
Home Assistant configuration for the Butterfly EDFA Rack (the 1550 nm MOPA: Koheron CTL200 seed + Agiltron M511 EYDFA booster, bridged to MQTT by an ESP32). The firmware and bill of materials live in the separate koheron-esp32-bridge repo; this repo is only the HA side.
Almost everything is auto-discovered over MQTT: the firmware publishes homeassistant/.../config topics, so the rack's sensors, switches and numbers appear by themselves under one device, butterfly_edfa_rack. These files add only what discovery cannot: the derived mW power sensors, the emergency-shutdown script, and the dashboard.
Files
| File | Where it goes on the HA host | Purpose |
|---|---|---|
configuration.butterfly.yaml |
merge into /config/configuration.yaml |
mW template sensors (dBm→mW for the EDFA input, pre-amp and output PDs) + the butterfly-rack YAML-dashboard registration |
scripts.butterfly.yaml |
merge into /config/scripts.yaml |
butterfly_edfa_shutdown emergency-off script |
ui-lovelace-butterfly.yaml |
copy whole to /config/ui-lovelace-butterfly.yaml |
the dashboard itself |
deploy.sh |
run from this repo | push the dashboard to the host, validate config, restart HA |
configuration.butterfly.yaml and scripts.butterfly.yaml hold top-level keys to merge into the matching HA files; they are not standalone configs. ui-lovelace-butterfly.yaml is copied whole.
The HA host
HA runs in Docker on lab-desktop.local (broker host 192.168.0.102). The compose file bind-mounts ~/HA/homeassistant/ on the host as the container's /config, and the container is named homeassistant. The MQTT broker is anonymous, so this config needs no secrets; secrets.yaml on the host is unrelated and is git-ignored here.
Reach it with ssh lab@lab-desktop.local. The web UI is http://lab-desktop.local:8123; the dashboard shows in the sidebar as Butterfly Rack at /butterfly-rack.
Deploy
./deploy.sh # scp the dashboard, check_config, restart HA
./deploy.sh --dash-only # just the dashboard (no restart; browser refresh picks it up)
The dashboard reloads on a browser refresh. Changes to configuration.yaml or scripts.yaml need the restart. Merge the two snippet files into their targets on the host by hand the first time (or whenever their keys change); deploy.sh does not merge them for you, so it does not clobber unrelated config.
Notes
- The
*_mwsensors derive from the internal-PD dBm telemetry, which reads ~0.5 dB optimistic. Indicative, not calibrated. - The seed temperature setpoint is the CTL200 thermistor resistance (
rtset, in ohms); the °C readout is a firmware-side NTC β-model. See the firmware repo README. - Safety: Class 4, >1 W, invisible 1550 nm. The dashboard's PUMP OFF / SEED OFF / SHUTDOWN controls and the shutdown script drop the pump before the seed; they are operational conveniences, not hardware interlocks.