Holybro Kakute H743-Wing Flight Controller
by Holybro

The Holybro Kakute H743-Wing Flight Controller is a high-performance, feature-rich autopilot tailored specifically for fixed-wing aircraft, VTOL platforms, and long-range RC gliders. Powered by an STM32H743 MCU running at 480MHz, this flight controller delivers fast processing power, robust multi-BEC voltage regulation, and low-noise sensor telemetry required for advanced flight stabilization using INAV or ArduPilot firmware.

Engineered with a high-current power distribution board supporting 3S to 8S LiPo inputs (10V–36V), the Kakute H743-Wing incorporates an adjustable 6V/8V high-power 6A servo BEC, a 5V BEC, and a jumper-selectable 9V/12V VTX/Camera BEC with an integrated ON/OFF Pit Switch. Additional features include a low-noise ICM-42688-P IMU, onboard BMP280 barometer, AT7456E analog OSD, dual camera switching, CAN bus interface, MicroSD Blackbox logging, and a remote USB-C DFU extender for streamlined mounting in slim glider fuses and fixed-wing bays.

Key Features

• STM32H743 Processor @ 480MHz: Offers 1MB RAM and 2MB Flash memory to execute complex ArduPilot and INAV fixed-wing and VTOL navigation tasks.

• Triple High-Power BEC Outputs: Dedicated 5V (2A), adjustable Vx 6V/8V (6A continuous for servos), and 9V/12V (2A for video systems) BEC rails handle high current demands without external regulators.

• Integrated PDB & 90A Current Sensor: Direct 3S–8S LiPo input with onboard voltage sensing and high-precision current sensing rated for 90A continuous (220A peak).

• Dual Camera Input & Pit Switch: Toggle between two analog camera sources via transmitter switch, with a built-in remote ON/OFF pit switch for video transmitter power control.

• Comprehensive Fixed-Wing Connectivity: Features 14 PWM outputs, 7 UARTs, 1 CAN bus port, 3 I2C interfaces, and a MicroSD card slot for high-speed Blackbox data logging.

• Remote USB-C / Boot Button Extender: External USB Type-C extender board allows access to FC configuration and boot modes when buried deep inside airframes.

Technical Specifications

• Brand / Manufacturer: Holybro

• Model Identifier: Kakute H743-Wing

• Main Processor (MCU): STM32H743VIT6 (480 MHz, 1MB RAM, 2MB Flash)

• Inertial Measurement Unit (IMU): ICM-42688-P (SPI3)

• Barometer: BMP280 (I2C4)

• Onscreen Display (OSD): AT7456E (SPI2)

• Blackbox Storage: MicroSD Card Slot (SDMMC2)

• Input Voltage Range: 10V – 36V DC (3S – 8S LiPo)

• Current Sensor Rating: 90A Continuous / 220A Peak

• Servo BEC (Vx Output): 6V Default / 8V Jumper Selectable (6A Continuous, 8A Peak)

• Logic/Accessories BEC (5V): 5.15V DC ± 0.1V (2A Continuous, 3A Peak)

• Video/Camera BEC (9V/12V): 9V / 12V Jumper Selectable (2A Continuous, 3A Peak)

• Linear BEC (3.3V): 3.3V DC (200mA Max)

• Hardware Ports: 14x PWM Outputs, 7x UARTs (Hardware Inversion), 1x CAN, 3x I2C, 5x ADC

• Camera Inputs: Dual Camera Switchable

• Firmware Compatibility: INAV (6.1.1 & later), ArduPilot (4.4 & later)

• Mounting Pattern: 25 mm x 25 mm (M2 Holes)

• Dimensions: 45 mm x 30 mm x 13.5 mm

• Net Weight: 28 grams (including USB extender board)

What Is Included

• (1) Holybro Kakute H743-Wing Flight Controller

• (1) USB-C / DFU Button Remote Extender Board

• (1) Flexible Cable Harness for USB Extender

• (1) JST-GH Wire Harness Set for CAN, GPS, and I2C Peripherals

• (1) Electrolytic Capacitor

• (1) Complete Pin Header Set & Mounting Hardware Kit