Controlling a 28BYJ-48 Stepper Motor Using ULN2003 and Arduino

https://www.digikey.com/en/maker/projects/controlling-a-28byj-48-stepper-motor-using-uln2003-and-arduino/e984ad1419ec4f74927f8d6d9c04aef8

Hey, I’m gonna start by saying I’m not sure about this, but your firing order might not be right? I’ve been playing with this for a bit, and I’ve yet to find a reliable configuration that is able to rotate in both directions reliably. Anyway, I’ve seen other examples where the firing order is 1, 3, 2, 4, versus 1, 2, 3, 4. My only datapoint supporting this is that the performance seems slightly better this way, and the lights are cascading evenly this way.