Connect one coil to A0 and A1; the other one to A2 and A3. If connected properly, this program will send characters representing the movement of the stepper. If nothing is sent, try to flip A0 and A1.

We always think it is interesting that a regular DC motor and a generator are about the same thing. Sure, each is optimized for its purpose, but inefficiencies aside, you can use electricity to rotate ...

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