Basically you are using a stepstick (motor controller) like board with some resistors and caps to make a user controlled motor.
http://www.instructables.com/id/Stepper-Motor-Speed-and-Direction-Control-Without-/
Basically you are using a stepstick (motor controller) like board with some resistors and caps to make a user controlled motor.
http://www.instructables.com/id/Stepper-Motor-Speed-and-Direction-Control-Without-/