Making vehicle stop in front of wall using stepper motor and ultrasonic (HELP)

Robin2:
That code does not attempt to move the motor one step at a time as suggested in Reply #1 yet you said in Reply #3 that you had tried doing it one step at a time.

It is the one step at a time code that I want to see.

...R

I'm a little stuck on that to be honest, this was the best i could come up with