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Anyone know how to control stepper motor ?

 Has anyone been control a stepper motor before , if you have can you give me some suggest how to begin ?

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You can use a dual "H" bridge IC to drive the motor but you need to pick one with a suitable current rating. You also need to determine if the motor is unipolar, bipolar or hybrid in order to wire it up properly.
Maybe even a ULN2803 darlington driver, depending on the type of stepper, but not even sure what is supposed to be the micro.