noise
8dafce7dfe
- top-level README.md (new): system overview, subsystem map, skills pointer, notable findings. - eg4battery README/NOTES: 3 -> 6 packs (pack 6 oddball 0x01/115200); SoC drift + calibration section; closed-loop comms evaluated and rejected (loses per-pack telemetry, no native protocol, doesn't fix drift); how to force a grid charge via output-priority SUB. - LVX6048 README: closed-loop pending item -> resolved decision; new "SoC calibration & known firmware quirks" section (POP single-digit/POP01, MCHGC charge-lock, re_discharge=re-discharge can't exceed float, PIRI lag, powermon adhoc wedge); skills pointer. - lvx-control README: POP encoding fix, POP crc-but-applies quirk, verify-by- behavior, grid-charge-via-SUB usage. - troubleshoot-inverter skill: corrected the stale "dead string per inverter" claim — both strings healthy; low PV is tilt/heat/shade/curtailment. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
solar — home power monitoring & control
Monitoring, control, and calibration tooling for an off-grid-leaning solar + storage
install, all published to one Home Assistant MQTT broker (10.0.0.41).
The system
6× EG4 LifePower4 v2 packs ──RS485 (1 FTDI each)──┐
2× MPP Solar LVX6048 inverters ──USB-HID/PI18──────┤ monitoring Pi ──MQTT──► Home Assistant
1× OpenEVSE charger (10.0.0.249) ───────────────────┘ (daemons) 10.0.0.41:1883
- 14.4 kW PV (36×400 W, 4×9s strings, 9s2p per inverter, 45° south) → 2 paralleled LVX6048 inverters → ~30 kWh EG4 LifePower4 bank (6× 100 Ah, 16S).
Subsystems
| Dir | What | Entities |
|---|---|---|
LVX6048/ |
2 inverters via powermon (PI18/USB) + lvx-flash settings tool + lvx-control HA→PI18 bridge |
lvx6048_{1,2}_* |
eg4battery/ |
6 battery packs via RS485/Modbus daemon | lifepower4_{1..6}_* |
openevse/ |
EV charger HA-discovery publisher | openevse_* |
battery/ |
legacy V1 protocol decoder (historical) | — |
Each subsystem has its own README.md / Install.md / NOTES.md.
Agent skills
Agent-runnable skills for monitoring, troubleshooting, and calibration live in
.claude/skills/ — start with
.claude/skills/REFERENCE.md (system map, real HA
entity ids, known firmware quirks, action policy):
solar-health-check— whole-system sweep + cross-checks + R/Y/G verdicttroubleshoot-inverter/troubleshoot-battery— subsystem deep-divespower-usage— load vs PV vs grid vs battery balancecalibration-charge— re-anchor drifted EG4 SoC via a full charge- helpers:
lib/solar-snapshot(live MQTT),lib/ha-history(HA recorder lookback),lib/grid-cal-monitor(supervised grid calibration with auto-revert)
Notable findings (see per-subsystem docs + the skills' REFERENCE)
- EG4 SoC drifts (counters never re-anchor without a full charge) → fixed by the
calibration-chargeskill. - "Low" PV is mostly geometry + curtailment, not a fault — both strings are healthy (~16 A @ 300 V at clear-noon peak); the shortfall is 45° tilt, heat, trees, and the battery charge cap throttling midday harvest.
- LVX6048 firmware quirks: PI18
POPis single-digit (POP1, notPOP01); MCHGC locked while charging; force a full grid charge via output-priority SUB, not the voltage thresholds; PIRI readback lags ~5 min (verify by behavior).