Interface between RaspberryPi and VW MFD Radio Navigation System
The RPi_MFD_Interface is a Atmega16-based device to connect the RaspberryPi with the CarAudio head unit. Its main purpose is to read the buttons of the car audio and send it to the pi. The second purpose is to power the pi with control over booting up and shutting down of the raspberry pi to prevent it killing the cars battery.