stepper motor step/dir driver (bipolar stepper motor)

hello i'm looking for the simplest stepper motor driver circuit schematic for bipolar stepper motor... can saomeone help me?

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To do what? The simplest circuit is a battery and some switches nailed to a board.
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you need lots more specifics. Motor draw is one big factor. However, here are some pointers: EDE1204 bipolar stepper motor IC Allegro 2916 Dual full-bridge PWM motor driver Allegro 3955 full-bridge pwm microstepping motor driver
These are all one-chip solutions that require minimal external circuitry. google stepper motor driver and you'll find lots of resources.
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Use ucn5804; a one chip solution!

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