BASICS OF DC MOTOR FOR ROBOTICSDC motors are really cheap and can be found very easily. In this post we will discuss the basic theory behind the DC motor drive system and its speed control. Having some basic understanding of how your motor driver works will play a key role in building your own circuits and debugging them.The main advantage is that, they are really easy to interface. Hook the wires on to the battery terminals and they will work just fine. The direction of rotation is based on the direction of current flow in the armature (polarity of the battery). The below image illustrates the direction on the motor with respect to the direction of the current flow. Download
