Hey guys -
Had a question. I've been looking at driving stepper motors, just experimenting with an Arduino.
I have a bunch of ULN2803 and I know i can use those to drive a stepper, requiring 4 IO pins. This seems straight forward enough if my stepper current requirements are met.
Now what are the advantages of dedicated stepper drivers like the A3967 or seemingly more common, the l297+L298 combo which costs almost $15 US bucks for both?
I know they include chopper circuit support which as I understand is to limit current? Is this provided so they support a wide range of steppers?
Confused.
Shane