# LMU Setup

> Configure Le Mans Ultimate to work with Braking Lab Capture for telemetry analysis.

Capture supports Le Mans Ultimate (LMU) telemetry. Like iRacing, LMU requires a one-time setup to enable telemetry recording.

## Enabling Telemetry in LMU

1. **Open Le Mans Ultimate** and go to **Settings > Gameplay**
2. **Enable "Record Telemetry"** (DuckDB logging)
3. **Complete at least one lap** — a `.duckdb` file will be created automatically

That's it. From now on, LMU will save telemetry after every session.

## Default Telemetry Location

LMU stores telemetry files in:

```
C:\Users\<YourName>\Documents\Le Mans Ultimate\Telemetry\
```

Capture detects this path automatically during setup. If you've moved your Documents folder or use a custom location, you can configure the path in **Settings > Simulators > LMU**.

## Verifying in Capture

Capture checks your LMU installation automatically and shows a status indicator:

- **Green indicator** — LMU telemetry folder detected and working
- **Yellow warning** — Folder found but no telemetry files yet
- **Red alert** — LMU installation not detected

You can verify or change the detected path anytime in **Settings > Simulators**.

## Key Differences from iRacing

| Feature | iRacing | LMU |
|---------|---------|-----|
| Telemetry format | `.ibt` (binary) | `.duckdb` (DuckDB database) |
| Manual setup needed | Yes (enable export) | Yes (enable recording) |
| iRating data | Yes | No |
| GPS track maps | SVG library + GPS | GPS only |
| File size | Small (~2-5 MB) | Larger (~5-15 MB) |

## LMU Limits

The following limits currently apply to LMU telemetry processing:

- **Maximum file size**: 200 MB per telemetry file
- **Lap cap**: 100 laps per session — larger sessions are skipped to ensure smooth processing

These limits may be adjusted as the feature matures.

## Troubleshooting

### No LMU Files Detected

1. **Run at least one LMU session** — Telemetry files are created after completing a session
2. **Check the default path** — Look for `.duckdb` files in `Documents\Le Mans Ultimate\Telemetry\`
3. **Custom path** — If you moved your LMU installation, update the path in Capture settings

### LMU Not Showing in Capture

1. Make sure you have the latest version of Capture installed
2. Check **Settings > Simulators** to verify LMU is listed
3. Restart Capture if LMU was installed after Capture

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## Third-Party Services Disclaimer

Le Mans Ultimate™ is a product of Motorsport Games. Braking Lab is not affiliated with Motorsport Games and is not responsible for LMU's availability, functionality, or any changes to the service.