STorM32 Boards

"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).

The STorM32 boards offer two types of NT bus ports, the NT and NT-X ports. They both are different from the NT bus connectors on the NT modules in that they have swapped Rx, Tx pins.

Comment: The Rx, Tx pins of the NT and NT-X ports on the STorM32 board must be connected to the Tx, Rx pins on the NT modules.

Comment: The v3.3 and v6.2 STorM32 boards have no motor drivers on-board, i.e., NT motor modules are needed in addition.

In addition to the boards shown here, also other variants exist, such as e.g. micro versions.

The design schemes are located in https://github.com/olliw42/storm32bgc

STorM32-BGC v6.2

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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 USB-C connector, VCP & DFU UART2/ESP port CRSF, Futaba S-Bus up to four PWM/Sum-PPM inputs/outputs joystick port (ADC) for two axes 2 auxiliary ports (digital), 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

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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 USB-C, wired to on-board CP2102 USB-TTL adapter UART2/ESP port CRSF, Futaba S-Bus up to four PWM/Sum-PPM inputs/outputs joystick port (ADC) for two axes 2 auxiliary ports (digital), BUT port

supply voltage: with motor drivers enabled: 6 - 12 V or 2 - 3S with motor drivers disabled: 6 - 20 V or 2 - 4S Comment: The motor drivers are enabled by closing the JP1 solder bridge. 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

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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 USB-C, wired to on-board CP2102 USB-TTL adapter UART2/ESP port CRSF, Futaba S-Bus up to four PWM/Sum-PPM inputs/outputs joystick port (ADC) for two axes 2 auxiliary ports (digital), 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.