NullString1 / VWCDC

VW CD Changer Emulator

VWCDC - ESP32

CD Changer Emualtor For VW Radios
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Table of Contents

1. About The Project
2. Getting Started
   • Using platformio
3. Usage
4. Car Radio Models
5. Roadmap
6. Contributing
7. License
8. Contact
9. Related Projects For Different Architectures
10. Useful information

About The Project

This project emulates the CD Changer in older VW / Audi / Skoda / Siat cars to allow the radio to accept AUX input from phone or bluetooth module.

Port of VAG CDC Faker by shyd for the ESP32

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Getting Started

Using platformio

1. Install vscode
2. Install platformio
3. Install Espressif 32 platform
4. Download and extract project
5. Connect ESP32
6. Run Upload task in platformio with ESP32 in download mode

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Usage

Connect ESP32 to radio following the wiring diagram

Name	ESP32 Pin	Radio Pin	Purpose
SCLK	18	CDC CLOCK	SPI Clock Signal 62.5MHz
MOSI	23	DATA IN	Data from ESP to radio
MISO / Radio Out	17	DATA OUT	Data from radio to ESP

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Car Radio Models

Tested

• RCD200 mp3 (VW POLO 2008)

Unverified

Untested with this port but working with related projects using same protocol (https://github.com/tomaskovacik/vwcdpic)

• Audi concert 1(blaupunkt)
• Audi concert 1(philips)
• Audi concert 2
• Chorus1(blaupunkt)
• Symohony I
• VW blaupunkt RadioNavigationSystem MCD
• VW Passat Blaupunkt Gamma (similar to Gamma V)
• Audi Symphony II BOSE
• Volkswagen
  • New Beetle
  • Touareg
  • Passat B3/B4 (1993+)
  • EOS 3.2 (2008)
  • Single DIN Monsoon
  • Single DIN Monsoon with In-Dash CD Player
  • Double DIN Monsoon
  • Multi-Function Display (MFD)
  • Gamma IV
  • Gamma V
  • RCD300
  • Blaupunkt R100
  • RNS300
  • RN S2 DVD
• Seat
  • Leon
  • Ibiza
• Skoda
  • Symphony
• Audi
  • Audi Chorus II

Roadmap

• Media control via bluetooth
  • CDs mapped to playlists

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Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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License

Distributed under the GPL-3.0 license. See LICENSE for more information.

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Contact

Daniel Kern (NullString1) - @nullstring1_ - [e-mail]

Website: https://nullstring.one Project Link: https://github.com/NullString1/VWCDC

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Related Projects For Different Architectures

• AVR https://github.com/tomaskovacik/vwcdavr
• AVR https://schuett.io/2013/09/avr-raspberry-pi-vw-beta-vag-cdc-faker/
• PIC https://github.com/tomaskovacik/vwcdpic
• STM32 https://github.com/tomaskovacik/vwcdstm32

Useful information

• http://kuni.bplaced.net/_Homepage/CdcEmu/CdcEmu_Versions_e.html
• https://web.archive.org/web/20220810224519/https://martinsuniverse.de/projekte/cdc_protokoll/cdc_protokoll.html
• https://q1.se/cdcemu/details.php (Different protocol but related)

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