confusion about stepper motor step size

[a4speaker]

I am new with stepper motors and have a confusion.

I want to use a bipolar motor. The tutorials on net show pulse sequences for 4 or 8 steps. This means rotate angle of 90 or 45 degrees respectively. While practical motors i see have step angle of 2-3 degrees.
Do they need unique pulse sequences for 360/2 = 180 degrees? or do we have to provide 4 or 8 step sequence repeatedly to make a 1 complete rotation?

 

[alexan_e]

The four step sequence you refer to rotates the motor by 4 full steps. For a 200 step motor this is 4 x 1.8 degree , not four times 90 degree.

The 8 step sequence rotates the motor in 0.5 steps, for a 200 step motor this is 8 x 0.9 degrees

Also check https://youtu.be/t-3VnLadIbc

 

[a4speaker]

Thanks Alexan... that helped.