Hello, its first time i get on this forum, i just bought arduino mega 2560. i was wondering how can drive stepper motor using it, i bought easy driver as well. i found code on arduino site "http://www.arduino.cc/en/Tutorial/StepperBipolar " but they using ULN2003A driver, is anybody has an ideal how can i use the same program but with the easy driver which is in the website "http://www.trossenrobotics.com/easydriver-v3-stepper-motor-driver.aspx?relatedid=1261". thanks alot.
That "StepperBipolar" tutorial is incorrect; that's actually for a "unipolar" motor.
How many wires does your stepper motor have? The EasyDriver is designed for a bipolar motor (which has 4, 6, or 8 wires).