hsohail:
HiI am doing a university project and need some help. I want to read a car's speed using OBD-II connector. I need some help on how to interface the OBD-II connector with arduino mega and the relative code to read the speed of vehicle from that.
Regards
Do you know the pinout? Did you search and find any docs for this?
Those are skills that your grade will say you have, it's the can find own way around to complete assignments part.
And then comes next level that assumes you are ready to run having already learned and practiced walking.
So what have you done so far besides ask for help on schoolwork?