How to control stepper motor angle using potentiometer & Arduino with comments on program

we will learn
how to control stepper motor angle??
connections
Arduino programming?
using potentiometer

[@Whathefishbro]

How can we control both the directions to rotate

[@Whathefishbro]

For the code the motor is rotating in one direction only

[@omerkaplan7711]

What is enPin 8 ?

[@B.electric]

Enable pin is for make the stepper motor free when it is connected to power

[@nicovelasco8304]

is this possible without arduino?

[@B.electric]

it is possible with controllers have pulses outputs that you can program them as pulses source for stepper drive like plc siemens s7-1200 or any AVR controllers