📚 Main Topics

1. Integration of Zesttec Steering Wheel Hub

   • Completion of the integration process for the Zesttec flappy paddle steering wheel hub.
   • Connection to the car's CAN bus for data flow.

2. Custom PCB Design

   • Development of a custom PCB using STM32 microcontroller with three CAN channels.
   • Purpose of the PCB: to pull data from powertrain CAN buses and broadcast to EMU CAN bus.

3. Disassembly and Wiring

   • Disassembly of the steering column to access the clock spring and repurpose airbag connector pins.
   • Removal of the shifter assembly to tap into powertrain CAN bus signals.

4. Data Logging and Tuning Devices

   • Use of a 3D scanner to create a connector housing for data logging devices.
   • Discussion of various CAN bus devices, including CSS Electronics' CANMOD router for multi-channel data logging.

5. Software for Data Logging

   • Introduction to Savvy CAN software for data visualization and reverse engineering of CAN messages.
   • Explanation of DBC files and their importance in defining CAN messages.

6. Programming and Development

   • Recommendations for programming in C over Arduino for automotive applications.
   • Use of STM32 microcontrollers and CubeMX software for project setup and coding.

7. Testing and Data Collection

   • Collection of data during a test drive to analyze CAN messages.
   • Identification of RPM signals and correlation with OBD2 data.

8. Future Plans

   • Discussion of future enhancements, including additional data signals and functionality for the hybrid system.
   • Mention of potential engine swaps for the BMW i8.

✨ Key Takeaways

• The integration of custom electronics into automotive systems can enhance functionality and performance.
• Understanding CAN bus systems and data logging is crucial for automotive projects.
• Using high-quality components and software tools can save time and improve project outcomes.
• Programming in C provides more control and reliability for complex automotive applications compared to using Arduino.

🧠 Lessons Learned

• Thoroughly test and debug custom code to ensure all components function correctly.
• Utilize available resources, such as online courses and community forums, to enhance knowledge of CAN bus systems.
• Keep an eye on industry standards and adapt to new technologies for better compatibility and performance.
• Plan for future upgrades and modifications to ensure the system remains flexible and adaptable to new requirements.