Arduino Forum

Topics => Robotics => Topic started by: juanps90 on Nov 15, 2012, 03:10 pm

Title: Controlling several DC motors
Post by: juanps90 on Nov 15, 2012, 03:10 pm
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.
Title: Re: Controlling several DC motors
Post by: dxw00d on Nov 15, 2012, 03:41 pm
Quote
Is there any other board that can handle about 4 motors?


http://www.adafruit.com/products/81
Title: Re: Controlling several DC motors
Post by: oric_dan on Nov 15, 2012, 06:29 pm
Note the L293D chips on the board from Adafruit will only power small motors, 600mA max.