Suggestion on how to use 4 DC motors

This may be a newbie Arduino/Robotics question:

I am looking to to build a 4 wheeled robot that can drive around outdoors. I have been looking at the Devantech RD02 [1] system (motor controller + 2x 12v-DC motors). It offers Arduino support but the controller that comes with the RD02 can only drive 2 motors at a time, thus I would need 2 RD02’s.

However; I currently have an Arduino Uno which only has 1 set of serial/I2C pins, which are needed to communicate with the motor controller.

My question is:

What suggestions does everyone have on how I can go about controlling 4 motors rated for outdoor use. What motors? What motor controllers? Arduino Uno or Mega?

Any help would be greatly appreciated!! Thank you! :slight_smile:


You can have more than one device on an I2C bus.

You need to check if you can change the I2C address of the controllers so one is different to the other.

Hope this helps…Tom… :slight_smile:

Your other post has answers. Please do not cross post.