Servos vs Motors with a Motor Driver

Hello all.

I am trying to make a robot using my arduino but while planning for it one question arose, do I get some servos or, since I have a motor driver shield do I get some motors. The thing is, I don't know much about the difference between the two. And that is why I am here, I need to know the difference between getting a servo vs getting a motor with a motor driver shield.

Thanks for replying.

do I get some servos or, since I have a motor driver shield do I get some motors.

A servo rotates, typically, from 0 to 180 degrees and back.

A bastardized servo that has been modified for continuous rotation is not a servo (by definition) but the speed and direction can be controlled by the Arduino.

They are limited in the amount of torque that they can provide.

If you have a little robot, continuous rotation no-longer-a-servos are fine. If you have a large, heavy robot, they won't work worth a damned.

Simple bots are often made with continuous rotation servos used to drive the wheels.