# BabyLIN SDK placement (DEPRECATED)

> The BabyLIN adapter is deprecated and retained for backward compatibility only. New deployments should target the MUM (Melexis Universal Master) adapter — see `automated_lin_test/README.md` and `../docs/16_mum_internals.md`. This guide is kept so existing BabyLIN rigs can still be set up.

Place the SDK's Python wrapper and platform-specific libraries here so the test framework can import and use them.

## Required files

- BabyLIN_library.py
- BabyLIN library/ (directory provided by the SDK containing platform-specific binaries)
  - Windows: `BabyLIN library/Windows/x64/*.dll`
  - Linux x86_64: `BabyLIN library/Linux/x86_64/*.so`
  - Raspberry Pi (ARM): `BabyLIN library/Linux/armv7/*.so` (or as provided by your SDK)
- Optional: Example SDF file (e.g., `Example.sdf`)

Folder structure example:

```
vendor/
├─ BabyLIN_library.py
├─ Example.sdf
└─ BabyLIN library/
   ├─ Windows/
   │  └─ x64/
   │     ├─ BabyLIN.dll
   │     ├─ BabyLIN_FTDI.dll
   │     └─ ... (other DLLs from SDK)
   ├─ Linux/
   │  ├─ x86_64/
   │  │  └─ libBabyLIN.so
   │  └─ armv7/
   │     └─ libBabyLIN.so
   └─ ...
```

Notes:
- Keep the directory names and casing exactly as the SDK expects (often referenced in `BabyLIN_library.py`).
- Ensure your Python environment architecture matches the binaries (e.g., 64-bit Python with 64-bit DLLs).
- On Linux/RPi, you may need to set `LD_LIBRARY_PATH` to include the directory with the shared libraries.

## Configuration

Point your config to the SDF and schedule:

```yaml
interface:
  type: babylin            # deprecated; emits a DeprecationWarning at runtime
  channel: 0
  sdf_path: ./vendor/Example.sdf
  schedule_nr: 0
```

## Troubleshooting

- ImportError: BabyLIN_library not found
  - Ensure `vendor/BabyLIN_library.py` exists or add the vendor folder to `PYTHONPATH`.
- DLL/SO not found
  - On Windows, ensure the DLLs are in PATH or next to `BabyLIN_library.py` per SDK instructions.
  - On Linux/RPi, export `LD_LIBRARY_PATH` to the folder with the `.so` files.
- Device not found
  - Check USB connection, drivers, and that no other tool holds the device open.
