#011 Using the X113647Stepper Library
A standard Stepper-compatible Arduino library that supports half-stepping the 28BYJ-48 unipolar stepper motor with a ULN2003A/X113647 Stepper Motor Driver Board.
It’s common to find the 28BYJ-48 stepper motor and a X113647 Stepper Motor Driver Board in Arduino starter kits.
However documentation is scant and the board is not exactly compatible with the standard Stepper library. See LEAP#431 28BYJ-48 for more details.
One thing that is not possible for the 28BYJ-48 to do with the standard Stepper library is half-stepping.
The X113647Stepper library is a demonstration of a library that is drop-in compatible with the standard Stepper library, but also supports other modes such as half-stepping.
The library is in a separate GitHub repository. See the X113647Stepper repo for more details.