Arduino Bipolar Stepper Circuit

I got a cool little 4-wire bipolar stepper motor and wanted to drive it via Arduino.

I based the design on this reference: 

http://arduino.cc/en/Reference/StepperBipolarCircuit (credit for following image belongs there as well)

 

 

bipolar_stepper_four_pins

Here is how it looks for real.  Kind of a mess of wires, but you know what?  It works great.

IMG_2031

 

 

 

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