INAV SBUS2 Telemetry Support

Futaba SBUS2 Telemetry Support Documentation (INAV 8.0.0)
Current Support Status:

• Applicable versions: INAV 8.0.0 and above
• Supported chips: Only F7 and H7 flight controller chips
• Limitation: SBUS2 requires UART inverted communication; Common F405 flight controllers cannot support bidirectional communication on their SBUS pins, making them unsuitable for SBUS2.
  Test Information:
• Tested with Futaba T16IZ (software version 6.0E) with partial sensor data passing.
• Alternative option: Use SBS-01ML MAVLink Telemetry Sensor (untested), but not compatible with older Futaba models (such as early 16IZ).
  Wiring Method:
• SBUS2 signal wire must be connected to the TX pin (different from the traditional SBUS RX pin connection method).
• Ensure that the UART where the TX pin is located supports the inversion function.
  Sensor Mapping Table:
  | Slot Number | Sensor Type | Description |
  | --- | --- | --- |
  | Slot 1 | Voltage Sensor | Displays battery pack voltage and individual cell voltages |
  | Slot 3 | Current Sensor | Displays current consumption (capacity in mAh) |
  | Slot 6 | RPM Sensor | Displays motor RPM, gear ratio must be set to 1.0 |
  | Slot 7 | Temperature Sensor | ESC temperature |
  | Slot 8 | GPS Sensor | Displays positioning-related data |
  | Slot 16 | Temperature Sensor | IMU (Inertial Measurement Unit) temperature |
  | Slot 17 | Temperature Sensor | Barometer temperature |
  | Slot 18-25 | Temperature Sensor | Custom temperature channels 0~7 |
  ————This document is referenced from the INAV official website: https://github.com/iNavFlight/inav/blob/master/docs/SBUS2_Telemetry.md