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Wolley Motor ECU

This is the KiCad project for the PCB that is used as ECU for the Wolley Wheel and Fan modules.

It's a circular PCB that a brushed DC motor can be directly mounted on to be controlled by the driver and MCU onboard through CAN.

PCB rendered in KiCad


Name Value
PCB layers 2
PCB diameter 61 mm
Max motor diameter 28 mm
Motor center hole diameter 10 mm
Motor voltage 6 - 36 V
Max motor current 6 A
Control Interface CAN

Key Components

Component Part Details
MCU Infineon XMC1404_F064X200A ARM Cortex-M0, 32-bit, 48 MHz, 200 kB flash
Motor driver Infineon IFX9201SG 6 A and 36 V H-bridge with SPI diagnostics
CAN transceiver Infineon TLE7251VSJ
Speed sensor Infineon TLE4964-4M High precision unipolar hall effect switch
Temperature sensor TI LM35DM Precision centigrade temperature sensor

Motor Alternatives

  • Mabuchi RS-385PV-2465
  • Mabuchi RS-365

Release Notes

Version 1.4:

  • Replaced the 4-pin connector with the new 5-pin connector.
  • Removed the battery power connector.

Version 1.3:

  • Moved the connectors closer to the middle to allow for more space and therefore better mounting.
  • Added a key hole to prevent the PCB from spinning when used as the CentrifugalFan ECU.
  • Joined the mount holes with the motor hole.
  • Smaller silk screen improvements.

Version 1.2 (same as CentrifugalFanECU v1.0):

  • Added a dedicated connector for the motor power.
  • Added a temperature sensor.
  • Added a status LED.
  • Removed two of the mount holes.
  • Made the motor hole bigger to fit a Mabuchi RS-380.

Version 1.1:

  • Replaced the motor driver with a better one that can handle up to 36 V.
  • Other improvements.


Licenced under the CERN Open Hardware Licence v1.2.


The KiCad project for the PCB that is used as ECU for the Wolley Wheel and Fan modules.








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