A trick this person found, is running a stepper motor with a driver board connected up without Arduinos or any computer.

To do this is make a small circuit monostable 555 oscillator.

Then output with a 10k resistor to “step”pin and motor will spin.

Low pulses and high pulses will operate as a regular dc motor.

The Rx and Cx on the 555 circuit the “RPM”also “dir”still

Operates. Cool trick.