Help!! stepper motor + arduino + anti-clockwise

[shellykk]

i have installed LIFA and all required stuff for running my unipolar stepper motor with arduino. in the example vi for stepper motor, the motor can only move clockwise... kindly let me know the configuration required in the vi to make it run anti-clockwise

[Eric_BOB]

Perhapse place negative value in "# of steps to move".

Eric