Fix BETAFPVG473_V2 default config

[liyouluo]

Hi. Please check.

This time we will modify the default config of the board.

Summary by CodeRabbit

• New Features

  • Added barometer support (BMP280 and DPS310).
  • Introduced external gyro clock input support.
  • Enabled HD OSD display port over a dedicated UART.

• Improvements

  • Smarter default receiver setup: automatically configures SBUS or CRSF based on build options.
  • Expanded timer/IO mapping for more flexible peripheral routing.

• Configuration

  • Updated default board yaw alignment to -45°, improving orientation for compatible frames.

[coderabbitai]

Walkthrough

Adds new macros and pin mappings in BETAFPVG473_V2 config: enables gyro clock input, barometer support (BMP280/DPS310 over I2C), adjusts UART assignments for MSP display port and SerialRX based on compile-time flags, updates timer pin map with PB9, and sets board yaw alignment to -45.

Changes

Cohort / File(s)	Summary
Board config updates configs/BETAFPVG473_V2/config.h	Added USE_GYRO_CLKIN with GYRO_1_CLKIN_PIN=PB9 and TIMER_PIN_MAP(5, PB9, 1, -1); enabled barometer macros USE_BARO, USE_BARO_BMP280, USE_BARO_DPS310 with BARO_BUSTYPE=I2C; added MSP_DISPLAYPORT_UART=SERIAL_PORT_UART4 under USE_OSD_HD; conditional SERIALRX_UART selection (USART1 for SBUS, else USART3 with SERIALRX_PROVIDER=CRSF); set DEFAULT_ALIGN_BOARD_YAW=-45.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• add AEROH7DIGITAL #900 — Similar board config changes adding USE_GYRO_CLKIN, barometer macros, UART mappings, and timer pin entries.
• Fix BETAFPVH725 default config #896 — Introduces gyro clock input support and adjusts DEFAULT_ALIGN_BOARD_YAW in board config headers.
• Add HWH7 (STM32H743) config – initial #893 — Touches the same config-level entities: gyro CLKIN pin, BARO I2C settings, TIMER_PIN_MAPPING, and SERIALRX/MSP UART assignments.

Suggested reviewers

• ot0tot
• haslinghuis
• blckmn

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description Check	⚠️ Warning	The pull request description is too brief and does not follow the required repository template, as it lacks sections on hardware compliance, review requirements, housekeeping guidelines, and the checklist of validations.	Please revise the description to use the provided template, include the mandatory hardware compliance statements, note the branch and review requirements, and complete the checklist items to ensure all necessary information is covered.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.
Title Check	✅ Passed	The title accurately and succinctly describes the primary change of updating the default configuration for the BETAFPVG473_V2 board and directly reflects the content of the changeset.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[ot0tot]

Is this for the BETAFPVG473_V3?

Closing, as the V2 does not have a baro or gyro clock. The V3 will require a new target as discussed in the Discord.