Holybro Kakute H743-Wing

Contents

Holybro Kakute H743-Wing Flight Controller User Manual

Model: Kakute H743-Wing

Brand: Holybro

1. Introduction

The Holybro Kakute H743-Wing is a full-featured flight controller designed specifically for fixed-wing and VTOL (Vertical Take-Off and Landing) FPV drone applications. It integrates a powerful STM32 H743 Processor, CAN Bus support, dual camera switching, and multiple BEC outputs, providing a robust solution for advanced aerial platforms.

This product is intended for hobbyist and professional use in remote-controlled aircraft. Please use it for its intended purpose and avoid any improper or unauthorized modifications or applications.

2. Safety Warnings

WARNING:

  • Keep away from fire, high temperature, and humidity.
  • Keep out of reach of children and infants.
  • Choking hazard – small parts, not for children under 3 years.
  • Do not disassemble, modify, or repair the product without proper knowledge and tools.
  • Stop use immediately if the product is damaged or malfunctions.

3. Package Contents

The standard package includes the following items:

  • 1x Kakute H743-Wing Flight Controller
  • 1x Power Board
  • 1x Top Board
  • 1x USB-EXT Board
  • 1x GPS Module (Optional, may vary by package)
  • 1x Electrolytic capacitor: 220uF 62v
  • 2x XT60 60mm Power Cable
  • 3x 2.54 DuPont Pin
  • 2x 15cm JST-GH 4Pin Cable (For CAN & I2C Port)
  • 1x 15cm JST-SH 6Pin Cable (For USB-EXT Board)
Holybro Kakute H743-Wing Flight Controller and accessories
Image: Kakute H743-Wing Flight Controller and included accessories.

4. Specifications

4.1. Flight Controller

  • MCU: STM32H743, 480 MHz, 1MB RAM, 2MB Flash
  • IMU: ICM-42688P (SPI3) - High-Precision / low-noise
  • Barometer: BMP280 (I2C4) - Integrated
  • OSD: AT7456E (SPI2)
  • Blackbox: MicroSD card slot on SDMMC2
  • Uarts: 7x (1,2,3,5,6,7,8) with built-in inversion
  • PWM Outputs: 14x
  • CAN: 1x
  • ADC: 5x (Bat1/Curr1, Bat2/Curr2 and RSSI)
  • I2C: 3x (I2C1 and I2C2 for external devices, I2C4 for onboard sensors)
  • LEDs: 3x for FC STATUS (Blue, Red) and 3.3V indicator (Green)
  • USB: USB/DFU Key Extender with USB Type-C
  • Camera: Dual Camera Inputs switch
  • Power Switch: 5V/9V(12V) for Camera/VTX power switch
  • Current Sense: High-precision (90A continuous, 220A peak)
  • Battery Voltage Sensor: 5K:25.5K (Scale 1800 in INAV, BATT_VOLT_MULT 18.18 in ArduPilot)
  • Static Power: 160mA@5V

4.2. Power Distribution Board (PDB)

  • Input Voltage Range: 10~36V (3~8S LiPo)
  • ESC Power Pads: 1x
  • Current Sense: 90A continuous, 220A peak (Scale 275 in INAV, 36 A/V in ArduPilot)

4.3. Built-in BEC Outputs

  • BEC 5V Output:
    • Designed for FC, Receiver, OSD, Camera, 2812 LED Strip, Buzzer, GPS, Air Speed Sensor, etc.
    • Output: 5.15 +/- 0.1V DC
    • Continuous Current: 2 Amps, 3A Peak
  • BEC 9V / 12V Output:
    • Designed for Video Transmitter, Camera, Gimbal, etc.
    • Continuous Current: 2 Amps, 3A Peak
    • 12V option available with Jumper pad
  • BEC Vx Output:
    • Designed for Servos
    • Voltage Adjustable: 6V Default, 8V option with Jumper pad
    • Continuous Current: 6 Amps, 8A Peak
  • BEC 3.3V Output:
    • Type: Linear Regulator
    • Continuous Current: 200mA

4.4. Mechanical

  • Mounting: 25 x 25mm, M2 hole
  • Dimensions: 45 x 30 x 13.5 mm
  • Weight: 28g (with USB extender)
Detailed diagram of Holybro Kakute H743-Wing Flight Controller components and ports
Image: Detailed overview of the Flight Control Board and Power Board, showing labeled components and ports.

5. Setup Instructions

The Kakute H743-Wing Flight Controller requires careful wiring and configuration. Refer to the wiring diagram below for typical connections. For detailed firmware setup and calibration, please consult the official documentation links provided in the Firmware Support section.

Sample wiring diagram for Kakute H743-Wing Flight Controller
Image: Sample wiring diagram illustrating connections for various peripherals including telemetry radio, FPV camera, ESC, motors, GPS, buzzer, air unit, analog VTX, and digital air speed sensor.

5.1. Firmware Support

The Kakute H743-Wing supports the following flight control firmware:

  • Ardupilot Target: KAKUTEH7-Wing (Ardupilot 4.4 or newer)
  • INAV Target: KAKUTEH7Wing (INAV 6.1.1 or newer)

For comprehensive guides on flashing firmware, configuration, and calibration, please visit the official documentation pages:

6. Operating Instructions

Once the flight controller is correctly wired and the chosen firmware (INAV or Ardupilot) is installed and configured, the operation of your drone will depend on the specific settings and flight modes defined within the firmware. Always perform pre-flight checks and ensure all components are functioning correctly before flight.

Refer to the respective firmware documentation for detailed instructions on flight modes, calibration, and advanced features.

7. Maintenance

  • Keep the product clean and dry.
  • Store in a cool and dry place, away from direct sunlight and extreme temperatures.
  • Avoid strong pressure, dropping, or collision to prevent damage to sensitive electronic components.
  • Regularly inspect all connections and wiring for signs of wear or damage.

8. Troubleshooting

If you encounter issues with your Kakute H743-Wing Flight Controller, consider the following general troubleshooting steps:

  • No Power: Check battery connections, power board integrity, and ensure correct voltage input.
  • No Communication: Verify USB cable connection, driver installation, and correct UART settings in your ground station software.
  • Sensor Errors: Recalibrate IMU and barometer. Check for physical damage or interference.
  • Unstable Flight: Review PID tuning, motor/ESC calibration, and ensure proper mounting of the flight controller to minimize vibrations.
  • GPS Issues: Ensure clear sky view, correct GPS module connection, and proper configuration in firmware.

For specific issues, refer to the troubleshooting sections of the INAV or Ardupilot documentation.

9. User Tips

No specific user tips were available from reviews or Q&A for this product at this time. Always ensure to follow the official documentation for best results.

10. Warranty and Support

For any after-sales problems or technical support, please contact the seller, RC FPV Drone Store, via the AliExpress platform. You may also refer to the official Holybro documentation for detailed product information and support resources.

A PDF version of the user manual is available for download: Holybro Kakute H743-Wing User Manual (PDF)

11. Compliance Information

  • CE Compliance: This product complies with EU safety and environmental protection standards.
  • FCC Statement: This device complies with Part 15 of FCC Rules.
  • RoHS: This product is RoHS compliant.

EU Authorized Representative:
Name: MJCM SARL
Address: 78 avenue des Champs Elysees Bureau 326, PARIS, FR (France)
Email: mjcm190928@gmail.com
Contact Number: 0033 752907452

Manufactured in China.

© 2024 Holybro. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.