Before I start asking you for help let you know that I am newbie in electronic field.
All I want to know is the principle of wheel rotation (left-right) from remote car gadget. I am not talking about changing the spin rotation of DC motor (up,down buttons from remote), I am asking about left and right movement of wheel.
I know that spin change depends on polarity of DC motor, so changing polarity changes spin, but what is the principle of changing the left and right positions of front wheels.