a google search for "avr gcc stepper motor" found two good links about controlling a stepper motor on the cheap with an atmega on the first result page: http://www.vimms.org/dbfstepper/docu.html http://www.instructables.com/id/Drive-a-Stepper-Motor-with-an-AVR-Microprocessor/still looking forward to the arduino shield design. Can the existing DC motor shield be used to drive two stepper motors?peter
Another price item you might want to check out are the Schottky diodes: you'll need 24 of them, and they are not cheap: count on 50 cents each in small quantities. You have to buy in quantity 500 or 100 to get a good price.
Tony:the 293D has the diodes, but the L298 doesn't.. which is too bad, because they're eeeexpeeeensive D
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