docs: clarify rangefinder interfaces and availability

[T1mn]

The rangefinder guide mixes sensor interfaces with the interfaces implemented by INAV, and gives the same serial setup steps for dedicated rangefinder drivers and MSP input.

This update:

• Uses the exact TOF10120_I2C CLI value and identifies the native TeraRanger Evo interface as I2C.
• Moves the US-D1 V0 protocol to the radar section, with a link to the manufacturer's description.
• Explains that a CLI option does not guarantee the driver is compiled in, including the current SRF10 default.
• Documents the fixed 115200-baud Rangefinder port used by Benewake/NRA/USD1 and the separate MSP setup.

Validation: checked the CLI values, detection guards, serial initialization and MSP message routing against the current source; checked relative links and git diff --check. No firmware behavior changes or hardware tests.

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PR Summary by Qodo

Clarify rangefinder interfaces and firmware availability

📝 Documentation 🕐 Less than 10 minutes

AI Description

• Corrects rangefinder names, sensor categories, and supported INAV interfaces.
• Distinguishes compiled driver availability from exposed CLI configuration values.
• Documents dedicated serial and MSP port requirements separately.

Diagram

graph TD
  A["CLI Selection"] --> B{"Driver Available?"}
  B -->|No| C["No Detection"]
  B -->|Yes| D{"Interface Type"}
  D -->|I2C| E["I2C Bus"]
  D -->|Serial| F["Rangefinder Port"] --> G["115200 Sensor"]
  D -->|MSP| H["MSP Messages"]

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High-Level Assessment

Keeping the corrections in the existing rangefinder guide is the best approach because interface choice, firmware availability, and port configuration are closely related user concerns. Splitting the material into separate guides or generating it from source metadata would add maintenance complexity without clear benefit for this focused documentation correction.

Files changed (1) +23 / -11

Documentation (1) +23 / -11

Rangefinder.mdCorrect rangefinder interfaces, availability, and serial setup +23/-11

Correct rangefinder interfaces, availability, and serial setup

• Clarifies exact CLI values, native sensor interfaces, protocol categories, and build-time driver availability, including SRF10's default status. Separates fixed 115200-baud dedicated Rangefinder-port drivers from MSP-based input and links the US-D1 protocol description.

docs/Rangefinder.md