Holybro Kakute F405-Wing Mini Flight Controller
by Holybro

Product Description

The Holybro Kakute F405-Wing Mini Flight Controller (SKU: 11071) is an ultra-compact 20x20mm stack-based autopilot specifically engineered for micro fixed-wing aircraft, sub-250g wings, VTOL platforms, and small autonomous UAVs. Driven by an STM32F405 processor running at 168MHz and equipped with a low-noise InvenSense ICM-42688-P IMU, this mini wing FC provides stable attitude processing and navigation capability within tight electronics bays.

Featuring a modular 3-layer stack design that separates processing, power distribution, and external interface components, the Kakute F405-Wing Mini includes an integrated SPL06 barometer, AT7456E analog OSD, 128Mbit SPI Blackbox flash memory, and an external USB Type-C extender board with a DFU button for easy firmware flashing. Its power distribution board supports 2S to 8S LiPo input (7.4V–36V), provides dual high-current BEC outputs (5.3V for avionics and selectable 5.3V/7.2V for standard or high-voltage servos), and incorporates a 110A continuous current sensor.

Key Features

• STM32F405 MCU @ 168MHz: 32-bit Arm Cortex-M4 core with 1MB Flash memory provides fluid processing for INAV, ArduPilot, and Betaflight flight stacks.

• Low-Noise ICM-42688-P IMU & SPL06 Baro: Low-drift 6-axis gyro/accelerometer paired with an onboard digital barometer for precise altitude tracking and Return-to-Home (RTH) modes.

• Compact 20x20mm Stack Design: Lightweight 3-layer architecture maximizes component spacing in small fuselages and sub-250g airframes.

• Dual BEC Regulators (5.3V & Selectable 7.2V Servo BEC): Dedicated 5.3V/3A BEC powers flight electronics and receivers, while a jumper-selectable 5.3V/7.2V 3A BEC supplies standard or HV servos.

• 2S to 8S LiPo Power Input Range: Integrated power board accepts 7.4V to 36V DC input with onboard 110A continuous (132A peak) current sensing.

• External USB Type-C Extension Board: External USB/DFU module allows flexible mounting on the outside of airframes for easy configuration and log downloads.

Technical Specifications

• Brand / Manufacturer: Holybro

• Model Identifier: Kakute F405-Wing Mini Flight Controller

• Manufacturer SKU: 11071

• Processor (MCU): STM32F405RGT6 (168 MHz, 192KB RAM, 1MB Flash)

• Inertial Measurement Unit (IMU): ICM-42688-P (SPI1)

• Barometer: SPL06 (I2C2)

• Onscreen Display (OSD): AT7456E (SPI2 Analog OSD)

• Onboard Blackbox Storage: 128 Mbit (16 MB) SPI Flash

• Input Voltage Range: 7.4V – 36V DC (2S – 8S LiPo)

• Current Sensor: 110A Continuous / 132A Peak

• 5V BEC Output: 5.3V ± 0.1V DC / 3A Continuous (4.8A Peak)

• Servo BEC Output (VS): 5.3V Default / 7.2V Selectable / 3A Continuous (4.8A Peak)

• 3.3V Output: Linear Regulator, 150mA Max

• Hardware UARTs: 5x UARTs (UART1, UART2, UART3 with hardware inversion, UART5, UART6)

• PWM Outputs: 7x PWM Channels (PWM7 assigned to NeoPixel LED by default)

• Peripheral Interfaces: 1x I2C Port, 2x ADC (Battery Voltage / Current)

• USB Interface: External USB Type-C & DFU Key Extension Board via 6-Pin JST-SH

• Firmware Targets: INAV (KakuteF405WingMini 7.1.2+), ArduPilot (KakuteF405WingMini 4.5.6+), Betaflight (KakuteF405WingMini 4.5.2+)

• Mounting Pattern: 20 mm x 20 mm (M2 Mounting Holes)

• Dimensions: 25 mm x 30 mm x 20 mm (Stack Assembly)

• Net Weight: 17.0 grams (including USB extension board)

What Is Included

• (1) Holybro Kakute F405-Wing Mini Flight Controller (SKU: 11071)

• (1) Power Board

• (1) Bottom Shield Board

• (1) USB Type-C Extension Board

• (1) 2000uF 35V Electrolytic Low-ESR Capacitor

• (1) 15cm JST-SH 6-Pin Cable (for USB Extension Board)

• (3) Sets of 2.54mm DuPont Headers