Products

Flight Controllers

FlyingRC F4Wing Mini MK1 F405 Fixed-wing Flight Controller

Name: FlyingRC F4Wing Mini MK1 F405 Fixed-wing Flight Controller
Brand: FlyingRC Official

An ultra-small fixed-wing autopilot board. It is the central controller for a small plane: it reads sensors, runs ArduPilot/INAV-style flight firmware, outputs servo/PWM control, and provides connectors for receiver and HD video equipment.

Fixed-wingFlight controllerSTM32F405ArduPlaneINAVPWM outputsUART / serialDJI O4

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FlyingRC F4Wing Mini MK1 F405 Fixed-wing Flight Controller

Best used for

Small and micro fixed-wing aircraft where board size and weight matter.
Builders who want ArduPlane/INAV capability in a compact airframe.
HD digital video builds using DJI HD, Walksnail HD, OpenIPC, or similar HD OSD workflows.

Key features

STM32F405RGT6 MCU with BMI270 IMU on current units released from May 25, 2026; earlier units used ICM42688P/ICM42605.
SPL06/SPA06 barometer, with dual independent sensor LDOs to improve sensor power stability.
3 UARTs plus SBUS, 6 PWM outputs, I2C, Type-C USB, HD VTX plug-in, and ELRS receiver plug-in support.
Supports AP, Betaflight, and INAV; ArduPlane is recommended for fixed-wing use.

Setup / wiring notes

Use the SH1.0 2P connector only for battery voltage detection and HD VTX direct-power input, not as the flight-controller power input.
For fixed-wing aircraft, start from ArduPlane wiring examples and check UART/SERIAL mapping carefully.
Use USB-C for configuration; mobile ground-station setup is possible with a USB-C to USB-C cable.

Check before use

Analog OSD is not supported on this board.
Because there is no onboard BEC, plan a clean 5 V supply for the flight controller.

Key specs

STM32F405 fixed-wing autopilot controller
27.9 x 20.3 x 11.2 mm board size
6 PWM outputs, 3 UARTs, SBUS, I2C, USB-C, and HD VTX connector

Downloads

ArduPilot

Latest stable

ArduPlane 4.7.0 firmware with bootloader Latest stable4.7.0ArduPlaneStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduPlane
SHA256: 0d4cd35ef451d2f57266e2873be73a4bf993567267b418cfeb4a84b5a340b710
Compatibility note: ArduPlane 4.7.0 firmware with bootloader for the F4Wing Mini target.

ArduCopter 4.7.0 firmware with bootloader Latest stable4.7.0ArduCopterStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduCopter
SHA256: 0994c85ebc882058b8af35f54f60ca327c67d9971febe3ac32cd08e686806e8a
Compatibility note: ArduCopter 4.7.0 firmware with bootloader for the F4Wing Mini target.

ArduRover 4.7.0 firmware with bootloader Latest stable4.7.0ArduRoverStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduRover
SHA256: 7798dba0a4d55071cba5ade2549974eb757c8b01acbf1689fe099941d672abb9
Compatibility note: ArduRover 4.7.0 firmware with bootloader for the F4Wing Mini target.

ArduSub 4.7.0 firmware with bootloader Latest stable4.7.0ArduSubStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduSub
SHA256: 39666b26fc3eefc74368924151e5b17c9cb2d03a773f6fe2d4398d5479645b2c
Compatibility note: ArduSub 4.7.0 firmware with bootloader for the F4Wing Mini target.

Past / unstable releases (2)

ArduPlane 4.6.3 firmware with bootloader Archived4.6.3ArduPlaneStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduPlane
Compatibility note: ArduPlane 4.6.3 firmware with bootloader for the F4Wing Mini target.

ArduCopter 4.6.3 firmware with bootloader Archived4.6.3ArduCopterStable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FlyingRCF4WingMini / ArduCopter
SHA256: c21551141b9ee8c941d784d895ba994c534056b0c9335abbc2cec76211411adc
Compatibility note: ArduCopter 4.6.3 firmware with bootloader for the F4Wing Mini target.

Betaflight

Latest stable

Betaflight 2026.6.1 firmware Latest stable2026.6.1Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: STM32F405 / FLYINGRCF4WINGMINI
SHA256: 178a45fc9325b5747f254b926658ef9b7191b6a5b2caab96985824a970320830
Compatibility note: Betaflight 2026.6.1 firmware for the FLYINGRCF4WINGMINI target.

Past / unstable releases (3)

Betaflight 2025.12.5 firmware Archived2025.12.5Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: STM32F405 / FLYINGRCF4WINGMINI
SHA256: 74455393edd9609c3e422dcb60de122b9dddfeaeba5ee26ff02a308ae483c097
Compatibility note: Betaflight 2025.12.5 firmware for the FLYINGRCF4WINGMINI target.

Betaflight 4.5.5 firmware Archived4.5.5Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: STM32F405 / FLYINGRCF4WINGMINI
SHA256: 28372661b9200f2b14ad75ae4c8085745929c5d773582da281ff97527c89e4e4
Compatibility note: Betaflight 4.5.5 firmware for the FLYINGRCF4WINGMINI target.
Release note: Retained Betaflight 4.5.5 stable maintenance-line build for users who need the 4.5.x series; use Betaflight 2026.6.1 for the current recommended stable build.

Betaflight 2025.12.4 firmware Archived2025.12.4Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: STM32F405 / FLYINGRCF4WINGMINI
SHA256: 21f94fb8a6a6a195bbb71895b6fc255f12d552639b7bf2108c15a873809083f2
Compatibility note: Betaflight 2025.12.4 firmware for the FLYINGRCF4WINGMINI target.
Release note: Older stable Betaflight build retained for users who need the previous tested release.

INAV / INAVFlight

Past / unstable releases (3)

INAV 9.1.0 firmware Archived9.1.0Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FLYINGRCF4WINGMINI
SHA256: de2009e9f90bbced7f05a11387c0dcc2bca69ee1d0aa1ec283dc27756b7c32a3
Compatibility note: INAV 9.1.0 firmware for the FlyingRC F4Wing Mini target.

INAV 9.1.0 custom INA226 I2C firmware Archived9.1.0-custom-INA226INA226 I2CUnstable

Board revision: F4Wing Mini MK1; external INA226 on PB8 SCL / PB7 SDA at default address 0x40.
Firmware target: FLYINGRCF4WINGMINI / INA226 on I2C1
SHA256: d80855722b3cc6b20bf1a90b86e49dd0c19e04a09864349116091d3155161cb8
Compatibility note: Select INA226 for current and voltage after flashing, then set ina_shunt_res_uohm to the module's actual shunt resistance.
Release note: Custom build based on official INAV 9.1.0 with FlyingRC INA226 support; it is not an official INAV release asset.

INAV 9.0.1 firmware Archived9.0.1Stable

Board revision: F4Wing Mini MK1; verify IMU and barometer revision before flashing.
Firmware target: FLYINGRCF4WINGMINI
SHA256: c4b6fe0b33c65f49c937d5a3287bbf4de0980171aa0fa09bda7d6f69d4804657
Compatibility note: INAV 9.0.1 firmware for the FlyingRC F4Wing Mini target.
Release note: Older stable INAV build retained for users who need the previous tested release.

Product manual SHA256 checksums

Reference files

ArduPilot F4Wing Mini target branch INAV F4Wing Mini target branch

Wiring / dimensions / specs

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