BMW iDrive controller keyboard simulator for Raspberry Pi

Python script to capture BMW iDrive CANbus messages and simulate predefined keyboard strokes. I used to integrate BMW F10 idrive rotary controller into OpenAuto (Crankshaft project) Android auto solution. Demo video in action on youtube

Script relies on:

• python-can library - for cature of CAN bus messages.
• uinput library - for simulation of keyboard input. This method acts as virtual keyboard.

Hardware:

• Raspberry pi board
• cheap MCP2515 board. Keep in mind that you need to connect board VCC to Raspberry 3.3V pin, not 5V pin. It works fine.
• power supply to power raspberry pi from car

Installing:

Run supplied setup.sh script or analyze it and do it manually.

Using:

Make sure to enable keyboard keys in Crankshaft Settings Input tab

Idrive key bindings to OpenAuto keyboard keys:

KEY_UP      # up
KEY_ESC     # up hold
KEY_DOWN,   # down
KEY_H,      # down hold (Home)
KEY_0,      # release
KEY_ENTER,  # press enter
KEY_1	    # rotary knob rotate counter clock
KEY_2       # rotary knob rotate clockwise

Links:

• Very detailed and nice tutorial how to connect everything. Note, that board modification isn't needed. It works fine of 3.3V PIN.