avr freaks stepper motor
I dont know AVRs but can give you the basics.
First you need a motor driver IC.I mean which contain transistors to switch high current into the steppers windings.
If you are using unipolar ones the best choice is ULNxxxx,UDNxxxx.
If you are using bipolar ones,you need H-Bridges as used at DC motors.
Theres a lots of info on the web on how to connect them and how to drive them.
If you want to use full and half stepping then its easy.But if you want to use microstepping you have to drive them specially.Its easy to find theories on the web but i couldnt find any practical examples for unipolar microstepping.
So summing up: need a proper drive sequence and a transistor IC.
search the google:
- determining stepper motor leads
- Jones stepper motor basics
- stepper motor drive sequence
- (and similar)
PS:if you want microstepping i cant help you because i am still experiencing errors in my microstep drive.