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This kit provides a great introduction to stepper motors for your Arduino ( or other microcontroller ) project.
The stepper motor is a 5v 4 phase model and has a built in 64:1 gearbox so, although it is compact, it actually provides quite a bit of torque so is ideal for use in control systems.
The ULN2003 Based Motor Controller can handle voltages between 5v and 12v and is easy to connect up to any digital lines on your microcontroller ( requires 4 ).
It also has 4 LEDs to show you which of the outputs are firing, useful for troubleshooting.
Connecting
Connect a 5v supply to the '-' and '+' pins on the board, for short usage or just to test you can use the power from your Arduino board but we would highly recommend a seperate power supply.
Then you need to use 4 digital pins, for the below example connect pin 2 to IN1, pin 3 to IN2, pin 4 to IN3, pin 5 to IN4.
