Why would you want to use the Automotive CAN bus in your automation projects using Raspberry Pi, BeagleBone Black, or more powerful computer?
1) the computer can control only a LIMITED number of IO pins and your project can have dozens of things to be controlled
2) you don't want to route dozens of cables back to controller, CAN bus needs only two.
To find out more come to my mini-workshop on May 14, 2014
or email me at Uki@CyberWalkAbout.com