That drawing looks like it is for the Version 3.
Not much to it.
The ATX power supply might be "over-kill".
the only thing is the program use 4 pins in this drawing it used 2 pins... i wish u understand me
I think I understand you.
But which "program"? Don't use the sketch from the tutorial, that is for a different situation (different set-up).
Your sketch should simply:
Make "DIR" HIGH or LOW (that determines the direction of rotation)
Pulse the Step pin to make the motor advance.
I suppose that something like this
void motor_go ()
for (int spin = 0; spin < 20; spin ++)
delay (100); // try different values
delay (500); // try different values
will make it "go".
* * * *
I am not sure whether the Easy Driver needs 5V from the Arduino.
The drawing does not show a connection, but I am not so convinced.
I'm guessing that it may.