Motor Stepper Example

[Ioannis]

The actual steps have nothing to do with what your are feeling turning it by hand.

If you follow the step pulses then you will confirm the 1.8 degrees/step. With microstepping even less, but this is complicated for now.

Ioannis

[astanapane]

thanks for the clarification.

i will do my tests and will upload my code.

[HenrikOlsson]

The 50 detents you feel when rotating the shaft by hand comes from the 50 magnetic poles of a standard 1.8° 2-phase motor. Had it been a 0.9° 2-phase motor you would have felt 100 detents.
Moving the rotor between two "natural resting positions" (the detents) takes 4 electrical steps (the 90° phase shifted signal you use to drive the motor). 4*50=200 steps.

/Henrik.

[astanapane]

That is really interesting.

I learn from you guys everyday. Thanks a lot.

New i only need to understand how To give a step and a direction at the same time

[HenrikOlsson]

Basically you don't.
You set the direction signal high or low depending on the desired direction, then you start sending out the step-pulses. You want to make sure the direction signal is in its correct state before the step-pulse goes out. If it's not the motor might move a step in the wrong direction.

[astanapane]

This sounds much easier than i thought.
Thanks:-D

[astanapane]

This morning i dissasembled the stepper Motor.

I found out that There are 8 magnets with 6 teeth magnets each.

That in the middle you can find the axis shaft with a gear which the 50 teeth slighty touch the outer magnets teeth.

That is interesting.