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Reference design kit for Gimbal controller for drones and handheld applications

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Parameter NameParameter Value
Core ProductLSM6DSL, STM32F303RE, STSPIN233
ECCN US3A991.a.2
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

The STEVAL-GMBL02V1 reference design kit is a complete triple motor field-oriented control (FOC) demonstration and evaluation platform. The kit is as an integrated environment for three axis Gimbal controller applications in the 6.0 V to 8.4 VDC bus voltage range (2 LiPo batteries), which you can increase up to 11 V with a maximum output current of 1.3 A for each motor drive.

The design features the STM32F303RE microcontroller with ARM® Cortex®-M4 32-bit core and the STSPIN233 low voltage three phase and three sense motor driver.

The STEVAL-GMBL02V1 is equipped with a USB interface for real-time data exchange. The kit includes an STEVAL-UKI001V1 ST-LINK adapter for serial wire debug (SWD) and corresponding cable. If you mount the STEVAL-UKI001V1 on the ST-LINK/V2-1 debugging section of an STM32 Nucleo-64 board, you can program and debug the STM32F303RE microcontroller with a compatible toolset via USB.

Key features
  • Up to three-axis Gimbal controller.
  • Compact (50 x 50 mm) design, suitable for mounting on:
    • drones
    • handheld cameras
  • Three STSPIN233 low voltage three phase and three sense motor drivers.
  • STM32F303RE microcontroller with ARM® Cortex®-M4 core able to simultaneously drive three PMSM motors:
    • MCU runs a high efficiency field oriented control (FOC) algorithm compatible with the most common position sensors on Gimbal motors (PWM or analogic inputs)
    • compatible with open loop sensorless algorithm
  • Operating voltage from 6.0 V to 8.4 V (2 LiPo batteries).
    • maximum output current 1.3 ARMS.
  • Protection mechanisms:
    • triple single shunt current sensing network
    • non-dissipative overcurrent protection
    • short-circuit protection
    • thermal shutdown
    • hardware overvoltage and polarity inversion protection
  • Measurement units:
    • on-board inertial measurement unit LSM6DSL (frame IMU)
    • compatible with external SPI/I2C inertial measurement units (camera IMU)
  • Interfaces:
    • STEVAL-UKI001V1 Serial Wire Debug (SWD) board with cable
    • USB connector for real-time data communication
    • three connectors for Pitch, Roll and Tilt axis target angle inputs (PWM mode)
    • one channel DAC output and one GPIO test point for debugging purpose
  • 2 Kbit serial I²C bus EEPROM for data storage
  • WEEE and RoHS compliant
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