This is quick documentation of me getting a stepper rolling on my bench — this is not a tutorial nor meant to be comprehensive — but it may help you get started.
I am using a 4-wire bipolar stepper from a surplus store. I do not have a data sheet for it. A reddit thread thread from a decade ago between two people who bought the motor at same place I did gave me a point of departure on specs.
I say in the video that it may run better at 180 steps — i actually get smooth performance and a full revolution from 100 steps — 200 hundred gives 2 full circles. If you have a data sheet or a part number that gives specs — its best to follow those.
Some links that may help
The chip datasheet — L293D equivalent
Different kind of stepper — not at all like the one in the video below.
an instructable that looks ok on the topic.
Video :: Bipolar Stepper with Huzzah32
direct link to video — if its not loading ? https://vimeo.com/693259129
In image below:
ground –> chip 4,5, 12,13
10k resistor (wire shown) to 3.3V –> chip 1,9
12V –> chip 8
5V (usb) –> chip 16
signals from huzzah –> chip 2,7,10,15
motor connections –> chip 3,6,11,14
