Boards

At present, three different versions of STorM32-BGC boards are in use (v0.17/v1.0 boards are deprecated).

Comments:

• The boards can in principle be populated with different microcontrollers; the "typical" configuration is a STM32F103RC.
• To avoid confusion/missunderstandings please note: The boards provide many features hardware-wise, but not all are currently supported by the firmware.

STorM32-BGC v1.3

Layout of STorM32 BGC board v1.3

MCU: STM32F103RC at 72 MHz motor drivers: TC4452VMF on-board Bluetooth (optional) on-board 6DOF IMU (MPU6050) IR led Futaba S-Bus Spektrum satellite up to seven PWM/Sum-PPM inputs/outputs joystick port for each of the three axis additional I2C port (I2C#2) 3 auxiliary ports BUT port

supply voltage: 6 - 18 V or 2 - 4S motor current: max. 1.5 A per motor comment: this is not yet fully exploited and depends also on the motor driver package (SOIC or DFN); for DFN packages, motors with resistances of 15 Ohm or larger have been tested to be easily handled at 4S, it is expected that also motors with 10 Ohm or larger are handled well (for more details see here).

STorM32-BGC v1.2

STorM32 BGC board v1.2 with motor drivers in DFN package

Differences to the v1.3 board:

• voltage regulator: smaller SOT223 package
• only 2 auxiliary ports

STorM32-BGC v1.1

STorM32 BGC board v1.1 with motor drivers in SOIC package

Differences to the v1.2 board:

• no Futaba S-bus support
• Spektrum satellite is supported, but no extra Spektrum connector on board
• no extra USB voltage protection diode
• voltage regulator: smaller SOT223 package
• only 2 auxiliary ports

Comment: The order of pins on the I2C#2 port is reversed to that on the I2C#1 port; please consider this then connecting an MPU module to this port.