You can read some more info on the cheap yet worthy 28BYJ-48 stepper motor here.
CheapStepper uses an 8 mini-step sequence to perform all moves
(a.k.a half-stepping): A-AB-B-BC-C-CD-D-DA
Depending on whom you ask, the 28BYJ-48 motor has an internal gear ratio of either:
64:1 gear ratio * 64 steps (1 step = 8 mini-steps) per internal motor revolution =
4096 total mini-steps / revolution
or ~4076 (4075.7728) if the gear ratio is 63.68395:1
CheapStepper library defaults to 4096 mini-steps but you can call:
CheapStepper::set4076StepMode()
to use 4076 steps
or CheapStepper::setTotalSteps(int numSteps)
to use a custom amount
CheapStepper assumes a 5v power source for RPM calculations.
It's best to use an external power supply like this, wired directly to the ULN2003 driver board, rather than draw from the Arduino's onboard power, which may have insufficient amperage (>100mA needed).
The Arduino sketch "pauses" during move()
The Arduino sketch will continue running during the move.
You must call run() on your stepper during loop()
e.g.
move (true, 8);
is the same asmoveCW (8);
newMoveDegrees (false, 90);
is the same asnewMoveDegreesCCW (90);