I'm looking to build a remote steering system in a car, not terribly unlike the standard full size remote control cars you see running all over town nowadays....
sadly, i'm more of a physical control guy than i am a logic control guy.
instead of a remote control car, tho, i'm just trying to electrically replicate the steering shaft the car would have come with originally.
in my mind, i can put a 4 turn potentiometer on the steering wheel, and another on the steering box (it's just over 3 turns lock to lock). with an appropriately sized electric motor and some gearing, i assume Arduino can compare the wheel pot to the rack pot and power the motor in the proper direction to have the rack mimic the wheel.
(i understand the steering will lose all feel, and there will be little more than the pot to create a positive stop at the wheel, but for my purposes, this is fine)
i'm sure this is foolishly simple, and possibly even answered a half dozen times already, but searching turned up little in practical application (likely because this is nearly obvious to those who regularly dabble in this world). I find a lot of "we did this!" in the RC car world, but much less "...and this is how".
any help, or even a decent nudge in the proper direction would be greatly appreciated.
thanks
justin