Nokia 3310 CAN Bus Interface

Turn your Nokia 3310 into a powerful car diagnostic tool! This project allows you to use a Nokia 3310 phone to send CAN bus commands to your car through an OBDLink SX adapter, either via PC or standalone with our custom adapter.

Educational Project by Khanfar
Project: https://github.com/khanfar/Nokia-3310-CAN-Bus-Interface

This project is designed for educational purposes to help people learn about:

• Vehicle diagnostics and OBD-II protocols
• Embedded systems and microcontroller programming
• Hardware interface design
• Classic Nokia phone protocols

See LICENSE for usage terms and conditions.

🌟 Features

• Store and execute custom OBD-II commands
• Real-time vehicle data monitoring
• DTC reading and clearing
• Standalone operation (with custom adapter)
• Simple Nokia 3310 menu interface
• Command storage in phone memory

📁 Project Structure

nokia3310-canbus/
├── src/                    # Source code
│   ├── fbus/              # Nokia FBUS protocol
│   ├── canbus/            # CAN bus interface
│   ├── storage/           # Command storage
│   ├── ui/                # User interface
│   └── tools/             # Utility tools
├── firmware/              # Custom adapter firmware
│   └── adapter/           # Direct connection adapter
├── hardware/              # Hardware designs
│   └── schematics/        # Circuit diagrams
└── docs/                  # Documentation

📚 Documentation

Documentation Index

User Guides

• User Guide - Getting started and basic usage
• Hardware Guide - Hardware setup and connections
• Nokia Protocol - FBUS protocol details
• Command Reference - OBD-II commands and usage
• Compatibility Guide - Supported devices and vehicles
• Troubleshooting Guide - Common issues and solutions

Technical Documentation

• Circuit Diagrams - Detailed schematics
• Direct Connection Guide - Standalone adapter
• Assembly Guide - Building instructions
• Alternative Access - Alternative CAN bus connection points
• Immobilizer Guide - Key programming procedures

🛠️ Setup

PC Mode Setup

1. Install Python dependencies:

pip install -r requirements.txt

2. Connect hardware:

• Nokia 3310 via FBUS cable
• OBDLink SX to car's OBD-II port

3. Run the software:

python src/main.py --port COM3

Direct Connection Setup

1. Build custom adapter following Assembly Guide
2. Flash firmware using AVR programmer
3. Store commands via PC
4. Use standalone in garage

🔧 Tools

Command Storage Utility

# Store a new command
python src/tools/store_command.py --port COM3 --name "RPM" --type 0x01 --data "010C"

# List stored commands
python src/tools/store_command.py --port COM3 --list

🚗 Compatible Vehicles

• Works with all OBD-II compliant vehicles (1996 and newer)
• Tested with major manufacturers:
  • Toyota
  • Honda
  • Ford
  • Volkswagen
  • BMW
  • Mercedes-Benz

📱 Hardware Requirements

PC Mode

• Nokia 3310 phone
• DKU-5 or compatible FBUS cable
• OBDLink SX adapter
• USB to Serial adapter (if needed)

Direct Connection Mode

• Nokia 3310 phone
• Custom adapter (DIY or purchased)
• OBDLink SX adapter
• Components listed in Circuit Diagrams

🔐 Safety Notes

• Always connect to OBD-II port with ignition off
• Don't disconnect while engine running
• Test commands in safe conditions first
• Keep backup of stored commands
• Follow vehicle manufacturer guidelines

🆘 Troubleshooting

Common issues and solutions:

1. Connection Problems

   • Check cable connections
   • Verify COM port settings
   • Ensure proper power supply

2. Command Issues

   • Verify command format
   • Check vehicle compatibility
   • Test basic commands first

3. Display Problems

   • Check phone battery
   • Verify FBUS connection
   • Reset if necessary

🤝 Contributing

1. Fork the repository
2. Create feature branch
3. Commit changes
4. Push to branch
5. Open pull request

📄 License

This project is licensed under the MIT License - see LICENSE file.

👥 Support

• GitHub Issues: Report bugs and feature requests
• Documentation: Check guides and references
• Project Link: https://github.com/khanfar/Nokia-3310-CAN-Bus-Interface
• Contact: Through GitHub issues

🙏 Acknowledgments

• Nokia for the legendary 3310
• OBDLink for the SX adapter
• All contributors and testers
• The car hacking community

🔗 Related Projects

By Same Developer

• OBD2-PYTHON - Python library for OBD-II diagnostics
  • Pure Python implementation
  • Supports multiple adapters
  • Real-time data logging
  • Compatible with this project

Recommended Tools

• python-obd
• pyserial
• python-can

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Copyright (c) 2025 Khanfar - Educational Project
https://github.com/khanfar/Nokia-3310-CAN-Bus-Interface