I am a completely newbie to electronics and I am looking to build my new robot.
What I have in mind is to create a 4 wheeled robot were all wheels have a motor and both pairs of wheels can spin at different speeds allowing to steer. On top of that, I am looking to drive some other motors to control a rotary sensor to detect objects.
Anyways, the question is: is it a good idea to build my own motor controller? Controlling speed and direction is a must and I understand that the arduino cannot provide the necessary power for the motors but a search on google comes up with certain boards that can handle about only two motors.
How can I create my own motor controller? Is there any other board that can handle about 4 motors?
I also don't want to place an arduino inside the robot, a standalone atmega would be much better.
Thanks in advance.