F435Wing Mini OSD AT32F435 Fixed-wing Flight Controller · Wiki

Documentation only. This model is not listed in the online store. Contact FlyingRC for availability.

Overview

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.

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

Hardware revision

Check the sensor markings and component layout on your board against the manual and diagrams below.

Setup 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.

CGU7: 1 MB Flash; CMU7: 4 MB Flash.
Dimensions: 27.96 x 20.29 x 11.4 mm; mounting pattern: 17.8 x 17.8 mm with M1.2 holes.
Weight: 3.1 g without pin headers, 5.1 g with soldered headers.
Battery voltage sensing and VTX passthrough range: 2.5-30 V / 1-6S LiPo; external I2C current meter supported.

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.

Wiring & pinouts

Separate examples show an external BEC and an ESC BEC. The battery-sense / video passthrough connector is not the controller 5 V power input; follow the matching example.

Connector and pin definitions · Open full-size image

Digital VTX and battery passthrough pinout · Open full-size image

Complete wiring with external BEC · Open full-size image

Complete wiring with ESC BEC · Open full-size image

Board layout & identification

The annotated drawing and MCU close-up help identify the F435 board and its component locations. Check your own sensor and controller markings before selecting firmware.