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FlyingRC F435Wing Mini OSD AT32F435 Fixed-wing Flight Controller
An ultra-compact AT32F435 fixed-wing flight controller that combines stabilization, navigation interfaces, servo and ESC outputs, an AT7456F analog OSD, and a digital VTX connector on one board.
Best used for
- Small and micro fixed-wing aircraft that need analog OSD or digital VTX connectivity.
- INAV 9.1.0 builds that need a compact board with seven PWM outputs.
- Builders choosing between the CGU7 1 MB and CMU7 4 MB hardware variants.
Key features
- AT32F435CGU7 or AT32F435CMU7 MCU at 288 MHz with 384 KB SRAM.
- BMI270 six-axis IMU, SPA06-003 barometer, dual sensor LDOs, and AT7456F analog OSD.
- Seven PWM outputs with one output shared with WS2812 LED, three UARTs, I2C, SBUS, passive buzzer output, and USB-C.
- Six-pin digital VTX interface provides UART4 RX/TX, SBUS, two grounds, and battery passthrough power.
Setup / wiring notes
- Power the flight controller itself from an external regulated 5 V source.
- Use the SH1.0 2P VBAT connector only for voltage sensing and battery passthrough power to the digital VTX.
- Flash the matching INAV 9.1.0 target in INAV Configurator: FLYINGRCF435WINGMINI for CGU7 or FLYINGRCF435WINGMINI_CMU7 for CMU7.
Check before use
- The VBAT/SH1.0 connector cannot power the flight controller.
- Verify that the digital VTX supports the connected battery voltage before using passthrough power.
- Only INAV is supported; do not flash ArduPilot, Betaflight, or PX4 firmware.
Key specs
- AT32F435CGU7 (1 MB Flash) or AT32F435CMU7 (4 MB Flash), 288 MHz, 384 KB SRAM
- BMI270 six-axis IMU, SPA06-003 barometer, and AT7456F analog OSD
- 27.96 x 20.29 x 11.4 mm; 17.8 x 17.8 mm M1.2 mounting pattern
- 3.1 g without pin headers; 5.1 g with soldered headers
- 7 PWM outputs (one shared with LED), 3 UARTs, I2C, SBUS, and passive buzzer output
- External regulated 5 V flight-controller power; external I2C current meter supported
- INAV only; ArduPilot, Betaflight, and PX4 are not supported
Downloads
INAV / INAVFlight
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