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Jeremy EwingJeremy Ewing
Jeremy Ewing
authored and
Jeremy Ewing
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data(captures): add 2026-08-05 BMS parsed frames and capture README
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‎captures/README.md‎

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# lux-mon captures
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Reference data captured from live EG4 200Ah battery BMS on `/dev/ttyUSB0` using the A5/5A protocol.
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| File | Description |
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|------|-------------|
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| `bms-capture-20260805-0801.json` | 30 parsed frames (60 s), Aug 5 07:58 CDT. Full decoded record from `collector/rs485/eg4_a5_bms.py`. |
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| `bms-capture-20260805-0801.ndjson` | Same data, newline-delimited JSON for streaming analysis. |
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| `a5-status-20260805-020156.csv` | Raw/status frame hex dump from earlier overnight capture. |
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| `all-frames-20260805-021312.csv` | All raw A5/5A frames from earlier capture. |
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| `all-frames-now.csv` | Snapshot of all frames at a single point. |
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| `api-snapshots-*.csv` | Inverter API snapshots taken alongside the BMS captures for cross-reference. |
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Notes from 2026-08-05 capture:
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- Pack voltage: ~53.45 V
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- Current: ~-0.4 A (small discharge)
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- PCB temp: 29 °C
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- Cell voltages: 3.337–3.343 V, delta ~5 mV
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- `field_25_26` varied 51–53 across 30 frames — not yet confirmed as cycle count.
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- SOC is still not decoded from the A5/5A status frame.

‎captures/a5-status-20260805-020156.csv‎

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‎captures/all-frames-20260805-021312.csv‎

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‎captures/all-frames-now.csv‎

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‎captures/api-snapshots-20260805-020156.csv‎

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ts,soc,battery_voltage,battery_current,charge_power,grid_import_power,cycle_count,soh,temp_battery
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2026-08-05T02:01:56.722533+00:00,1.0,51.1,9.96,5000.0,6000.0,53.0,87.0,33.0
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‎captures/api-snapshots-20260805-021312.csv‎

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ts,soc,battery_voltage,battery_current,charge_power,grid_import_power,cycle_count,soh,temp_battery
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2026-08-05T02:13:12.885155+00:00,7.0,53.1,9.68,5000.0,6000.0,53.0,87.0,34.0
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