gmcmurry:
put on lawyer hats.
Not so much lawyer. More like guy-with-some-common-sense.
I don't know where this guy is trying out his new cruise control, so I have to worry that it might be near to where I am driving.
Then I see:
I am a mechanical engineer and Math and Science teacher.
Followed by:
WHAT is the way to tie my arduino ground to the car's computer ground
and I know that this guy is either 1. a liar 2. stupid or 3. the worst engineer ever.
Either way, it doesn't instill a lot of confidence and I know that I might have to drive around some idiot trying to build a cruise control on a highway. If it isn't this guy it will be some other numb-skull who reads this thread and decides it's all good to control a 2 ton machine at 70 miles per hour with a $2 hobby microcontroller.
All I'm saying is, Do your testing on a track and not the street.
That's it. And I don't think that is too much to ask. Please consider my safety and not just your own desire to do something stupid.