The pul is pulse the dir is direction you connect them to any arduino output pin. The dir controls the direction of the motor and a pulse on the pul advances the motor by one step.
Ok i did it, for the people who googling this topic and have the same prob. I did somting stupid, i downloaded the wrong image of the wire collers from my motor..
Now if i just send a puls (200 for 180 degrees) its working perfect (put switch 5-6 on) 800 for switch on 5-6 off!