I'm looking to control a stepper motor (from an old floppy disk drive-with worm gear attached) without the use of a microcontroller or a commercial stepper motor controller. There would need to be two push buttons - one which will turn the stepper motor in one direction and the other in the other. I want the motor to spin continuously while either button is pushed down. A potentiometer for speed control would be good, but not wholly necessary. Accuracy is not important, though I would like the rotation to be as smooth as possible. I was wondering if there is a possible solution to this using, say, a 555 timer or other easily available IC's. Though I may add this onto a project later on, for now it is just intended to be a learning experience for me.
Any advice, schematics, links, or pointers would be greatly appreciated.