This video shows you a DVD Bipolar Mini Stepper Motor driven by a L293D via Arduino.
Schematic, Arduino and Android programs: https://github.com/pu2clr/Mini-Stepper-Motor-with-Android-and-Arduino
To do that you can use the standard Stepper motor librarie for Arduino (Stepper.h) and stepper_oneRevolution example for testing. See Arduino examples.
I intent to use this stepper motor to control a fine tuning variable capacitor.
See the video "DVD Bipolar Mini Stepper Motor managed by Arduino and Android"
(http://youtu.be/5Bsx95XI8Dw).
I will appreciate ideas about a homebrew capacitor for that.
Circuit References
DRIVING STEPPER MOTORS WITH THE L293D:
http://www.seattlerobotics.org/encoder/may98/steppers.html
Stepper Motor interfacing with Microcontrollers:
http://www.8051projects.net/stepper-motor-interfacing/stepper-motor-connections.php
