EFeru/hoverboard-firmware-hack-FOC
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Page: Sideboards
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Battery Buying a used hoverboard Compiling and flashing the firmware Debug Serial Diagnostics Dual Inputs Firmware Compatibility Home Hoverboard Wheels How to Unlock MCU Flash Input Calibration Parameters Setup current and speed limits Sideboards Test Troubleshooting Variant ADC Variant BBCAR Variant HOVERBOARD Variant HOVERCAR Variant IBUS Variant NUNCHUK Variant PPM Variant PWM Variant SKATEBOARD Variant TRANSPOTTER Variant USART Variants
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Sideboards
Candas1 edited this page 2024-01-25 12:50:49 +01:00

2 custom firmwares are available for flashing the sideboards that are coming with the hoverboard mainboards.

Those sideboards handle:

  • Leds 1/2/3 to show battery status for any variant except the transpotter variant
  • Led 5 for reverse and braking with Hovercar variant
  • Optical sensors that can let you turn on/off some of the features (e.g. Hovercar variant )
  • RC receiver with iBUS protocol can be connected to the AUX serial Rx pin (Hovercar variant)
  • An Inertial Measurement Unit that is meant to be used with the Hoverboard variant ( ⚠️ The balancing is not implemented yet ⚠️ )

Those are not meant to control motors.

The GD firmware can be used on boards with following chips:

  • GD32F130C6T6
  • GD32F130C8T6

The STM firmware can be used on boards with following chips:

  • STM32F103C8T6
  • GD32F103C8T6

⚠️ Don't mix mainboards and sideboards that don't belong together unless you checked the polarity on the connectors is not reversed ⚠️

Those boards can have different IMUs, not all are fully supported:

IMU Datasheet Raw
Accel.
Data		 Raw
Gyro
Data		 DMP
Available		 DMP
Supported		 Comment
MPU6050 Link ✔️ ✔️ ✔️ ✔️
MPU6050C ✔️ ✔️ ✔️ ✔️ same as MPU6050C?
MPU6052C Link ✔️ ✔️ ✔️ ✔️
MPU6050A Link ✔️ ✔️ ✔️ ❌ It's actually an ICM-20689
Raw data available if DMP disabled in config.h
ICM-20618 Link ❓ ❓ ✔️ ❓
ICM-20630
ICM-20681
BNO055

The Digital Motion Processor handles the calculation of Euler Angles and Quaternions.

If you find a board with a different IMU, please use the debug variant and try:

  • a command : you should see raw Accelerometer data, if you see non zero data, it proves the firmware supports the Accelerometer
  • g command : you should see raw Gyroscope data, if you see non zero data, it proves the firmare supports the Gyroscope
  • e command : you should see Euler angles, if you see non zero data, it proves the firmware supports the DMP

Please share your findings so that we can enrich the wiki.