I want to drive a robot, and I am using a stepper motor for this - can anyone advise on how to drive?

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Haytham M. Fayek

You may want to refer to the following link if you're using Arduino:

http://arduino.cc/en/reference/stepper

Raivo Sell

It depends much about the controller you are using and stepper motor characteristics. Here is one example of tiny drivers for robotic projects: http://www.pololu.com/catalog/category/120

Hari Krishnan Ramachandran

This is another good source: http://www.8051projects.net/stepper-motor-interfacing/stepper-motor-connections.php