First public release – CD-Changer emulator for Jaguar cars with D2B fiber optic bus

I was very happy reaching this point. I was quite a few years of effort, but finally, here it is. Something I can offer to people – a useful product. A device which emulates the car CD-changer and lets you stream music from your phone via Bluetooth.

Following a short beta test period, this is the re-designed look of the CD-Changer emulator. The fiber-optic control board is now on top of the Raspberry Pi. You can see the fiber-optic transmitter glowing in red through the connector plastic housing.

The board says V3.0 because V1 was the “beta” device and V2 never saw the light of day. The board has the D2B controller OCC8001 as well as a Cypress ARM M0 micro-controller and finally power supply circuit.

Here are a few more pictures.

Naturally, I misspelled the URL on the board, should be iQury.us. Brain does not function as well as it once was I guess.

3D printed fiber-optic connector

I could not locate any source to purchase the fiber-optic connector used inĀ  Jaguar cars, so I 3D printed one.

I managed to find an optical transmitter and receiver pair working at around 650nm wavelength. They were compatible with the signal in the car, so here it is optical connector replacement in all it’s glory.

Homebrew fiber optic loop cable

Very simple homebrew fiber optic “loop” cable. The D2B devices have to form a loop and this little gizmo comes very handy if you have to disconnect a device – just plug the loop in the empty fiber optic socket.

The connector is 3D printed, the optical “cable” is cut from SP-DIF (aka TOSLINK) cable – they use the same 1mm plastic fiber core.