If it has 4 wires my guess is it's a standard bipolar stepper motor. Use something like this to figure out the wire pairs:
Once you know that, you can use something one of these to connect it to an Arduino:
Good luck!
If it has 4 wires my guess is it's a standard bipolar stepper motor. Use something like this to figure out the wire pairs:
Once you know that, you can use something one of these to connect it to an Arduino:
Good luck!