kcx bt003 (BT and usb flash) and arduino nano, to Ford Sony, with Steering Wheel button controls.
Arduino reads wheel buttons and says BT what to do, next or prev track on phone or usb flash.
Buttons on PCB its volume up and down.
A board to break out Raspberry PI GPIO into db9 Sega ports and gamecon supported devices
Gamecon and db9 driver rules apply. There's no magic here, just a simple breakout board.
The I2C port is only usable when using just the DB9 ports.