Holybro Durandal

Overview

Durandal is a flight controller designed by Holybro utilizing the STM32H7 microcontroller series. It comes with built-in vibration isolation system and integrated IMU heater for sensors temperature control.

Key Design Points:

• High performance H7 Processor with clock speed up to 480 MHz
• Redundant inertial measurement unit (IMU) from Bosch® & InvenSense®
• Built-in Vibration isolation system to filter out high frequency vibration and reduce noise to ensure accurate readings
• IMUs are temperature-controlled by onboard heating resistors, allowing optimum working temperature of IMUs
• 2 power ports & 5 general purpose serial ports
• Two Power ports for redundancy

Technical Specifications

Processors & Sensors

• Main FMU Processor: STM32H743
  • 32 Bit Arm ® Cortex®-M7, 480MHz, 2MB memory, 1MB RAM
• IO Processor: STM32F100/F103
  • 32 Bit Arm ® Cortex®
• On-board sensors
  • Accel/Gyro: ICM-20689
  • Accel/Gyro: ICM-20602 / BMI088
  • Mag: IST8310
  • Barometer: MS5611

Electrical Data

Voltage Ratings:

• Max input voltage: 6V
• USB Power Input: 4.75~5.25V
• Servo Rail Input: 0~36V

Current Ratings:

• Telem1 Max output current limiter: 1.5A
• All other port combined output current limiter: 1.5A

Mechanical Data:

• Dimensions:80*45*20.5mm
• Weight: 68.8g

INTERFACES

• 13 PWM outputs (8 from IO, 5 from FMU)
• 5 general purpose serial ports
  • 3 with full flow control
  • 1 with separate 1.5A current limit (Telem1)
• 3 I2C ports
  
• 4 SPI buses
  • 1 internal high speed SPI sensor bus with 4 chip selects and 6 DRDYs
  • 1 internal low noise SPI bus dedicated for XXX
  • Barometer with 2 chip selects, no DRDYs
  • 1 internal SPI bus dedicated for FRAM
  • Supports temperature control located on sensor module
  • 1 external SPI buses
• Up to 2 CANBuses for dual CAN
  • Each CANBus has individual silent controls or ESC RX-MUX control
• Analog inputs for voltage / current of 2 batteries
• 6 dedicated PWM/Capture inputs on FMU
• Dedicated R/C input for Spektrum / DSM
• Dedicated R/C input for CPPM and S.Bus
• Dedicated S.Bus servo output and analog / PWM RSSI input
• 2 additional analog inputs