Holybro Durandal only

Holybro Durandal Flight Controller

The Holybro Durandal Flight Controller is a high-performance autopilot for drones, designed with a focus on powerful processing, stable sensors, and robust construction. It uses the STM32H7 processor and features a redundant IMU system, integrated vibration damping, and temperature protection for the sensors. This makes it particularly suitable for complex autonomous applications with demanding computational requirements.

Technical Data

• Processors & Sensors:
  • Main FMU: STM32H743, 32-bit Arm® Cortex®‑M7, 480 MHz, 2 MB Flash, 1 MB RAM
  • IO Processor: STM32F100 / STM32F103 (32-bit Cortex-M3)
  • Integrated Sensors:
    • Accel/Gyro: ICM-20689 + optional BMI088 / ICM-20602
    • Magnetometer: IST8310
    • Barometer: MS5611

• Electrical Specifications:
  • Maximum Input Voltage: 6 V
  • USB Power Supply: 4.75 – 5.25 V
  • Servo Rail Input: 0 – 36 V
  • Current Limiting: Telemetry port max. 1.5 A, other ports combined max. 1.5 A

• Interfaces & I/O:
  • PWM Outputs: 13 (8 from IO processor, 5 from FMU)
  • 6 dedicated PWM / capture inputs on FMU
  • 5 serial ports (UART), some with flow control
  • 3 × I²C ports
  • 4 × SPI buses: internal high-speed sensor SPI, quiet SPI, barometer SPI, external SPI bus
  • Up to 2 × CAN buses for dual-CAN support
  • Analog inputs for voltage/current measurement from 2 batteries + 2 additional analog inputs
  • Receiver inputs: Spektrum / DSM, CPPM, S.Bus + analog/PWM RSSI

• Mechanical & Temperature:
  • Dimensions: approx. 80 × 45 × 20.5 mm
  • Weight: approx. 68.8 g
  • Operating Temperature: up to approx. 85 °C

• Special Features:
  • Vibration isolation to reduce high-frequency noise
  • Integrated heating elements for IMU temperature control
  • Dual power inputs for redundancy

Scope of delivery

• Durandal Flight Controller (main board)
• Cable set (for power, UART, PWM, etc.)

The Durandal supports common flight stacks such as PX4 and ArduPilot, making it suitable for both research and industrial drone applications.