Using a motor driver with arduino

I have an arduino uno board and a motor driver.But i cant us the driver move the motors in reverse.I guess i have some problem with the connection between the arduino-motor driver-sensors.I need some help with the connections.I am attaching the manual with the driver.Please help.:slight_smile:

OptoCardManual.pdf (402 KB)

The 'documentation' is nearly useless.

It looks like for each motor there are two inputs, associated by color code. Let's call them A and B. I think that you set A HIGH and B LOW to go one direction and A LOW/B HIGH to go the other direction.

Without a schematic diagram it is hard to tell.

Thanks for the reply,but it still does not help.