Hello,
I bought this motor driver but it did not have any documentation
Does any one know of any or could someone help to understand what those pins do. I guess the two by motor A and motor B are to turn that motor left and right, but what about the others? I will play but at the same time I don't want to break it. Thanks for any help.
Your best bet is the L298N datasheet, since the 6 inputs go to pins of the L298N. You could also see http://www.ebay.com/itm/L298-Based-Stepper-DC-Motor-Driver-Board-Arduino-L298N-Controller-Module-USA-/150765336052?ssPageName=ADME:B:EOIBSA:US:3160 which appears to be a similar (but not identical) design with instructions on what to connect the pins to. I haven't checked those instructions for correctness.