STorM32 Boards

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"Original" STorM32 Boards

At present, board versions v3.3, v4.1 and v6.2 are supported (v0.17/v1.0, v1.1, v1.2, v1.3x, v2.4 boards are deprecated).

STorM32-BGC v6.2


  • MCU: STM32H7A3RG at 280 MHz
  • motor drivers: none
  • voltage regulator: 5 V, 2.0 A low-noise switching regulator
  • on-board IMU: ICM42688P/ICM42688V
  • 2x NT port and 1x NT-X port
  • UART2/ESP port
  • USB-C connector, permits flashing per USB
  • Futaba S-Bus, CRSF, Spektrum satellite
  • up to four PWM/Sum-PPM inputs/outputs
  • joystick port for two axes
  • 2 auxiliary ports, BUT port
  • supply voltage: 6 - 27 V or 2 - 6S
  • motor current: depends on used NT motor modules
  • board dimensions: 40 mm x 25 mm, 35 mm bolt to bolt, holes Ø3 mm

STorM32-BGC v4.1


  • MCU: STM32F103RC at 72 MHz
  • motor drivers: DRV8839
  • voltage regulator: 5 V, 2 A (??) switching regulator
  • on-board IMU: ICM42688P/ICM42688V
  • 2x NT port and 1x NT-X port
  • UART2 port
  • on-board USB-TTL adapter CP2102, permits flashing per USB
  • USB-C connector
  • Futaba S-Bus, CRSF, Spektrum satellite
  • up to four PWM/Sum-PPM inputs/outputs
  • joystick port for two axes
  • 2 auxiliary ports, BUT port
  • supply voltage: 6 - 12 V or 2 - 3S (with motor drivers enabled)
    Comment: The motor drivers are enabled by closing the JP1 solder bridge. When the solder bridge is open, the board can be used with voltages up to 20 V or 4S (??).
  • motor current: 1.0 A (??)
  • board dimensions: 40 mm x 28 mm, 35 mm bolt to bolt, holes Ø3 mm

Comment: This board is design of KrattWorks, [1].

STorM32-BGC v3.3m, v3.3i


  • MCU: STM32F103RC at 72 MHz
  • motor drivers: none
  • voltage regulator: 5 V, 0.6 A low-noise switching regulator
  • on-board IMU: ICM42605/ICM42688P/ICM42688V (v3.3i), or MPU9250 (v3.3m)
  • 2x NT port and 1x NT-X port
  • UART2/ESP port
  • on-board USB-TTL adapter CP2102, permits flashing per USB
  • Futaba S-Bus, CRSF, Spektrum satellite
  • up to four PWM/Sum-PPM inputs/outputs
  • joystick port for two axes
  • 2 auxiliary ports, BUT port
  • CAN bus port (obsolete, not supported anymore)
  • supply voltage: 6 - 27 V or 2 - 6S
  • motor current: depends on used NT motor modules
  • board dimensions: 40 mm x 25 mm, 35 mm bolt to bolt, holes Ø3 mm

Comment: Tthe v3.3i version has a ICM42605/ICM42688P/ICM42688V on-board IMU, the v3.3m version has a MPU9250 on-board IMU.

Comment: This board has no motor drivers; NT motor modules are thus mandatorily required.