I was moving along on the 3D scanner and I needed to wire up the stepper motor. I bought this stepper motor #324 from Adafru.it – it seems to be a great motor. I bought a motor stepper driver from sparkfun, but I never hooked it up, nor soldered the pins I needed to it.
You can see the A and B at the top left and the power (gnd +5V) on the lower left. One of these days I’ll wire this one up. I don’t have the schematics, but I’m sure they’re easy to find.
I have an Arduino Motor Shield. As you can see below it’s mounted on my Arduino Mega 2560.
Wiring from left to right (B-, B+, A-, A+) I have red, yellow, green, brown. This is technically incorrect. It should be brown, green, yellow, red. However, I wanted to get it to work… and it did just that. It performed beautifully. I pulled some code from here: http://www.instructables.com/id/Arduino-Motor-Shield-Tutorial/step6/Stepper-Motor/ pasted it in my Arduino IDE and uploaded. It worked great. In case you are thinking I knew what I was doing with the wire colors, I actually found the answer here: http://forums.adafruit.com/viewtopic.php?f=1&t=28871
