I'm a total beginner at arduino and controlling steppermotors showed to be more than I could handle, so I need your help.
I'm trying to complete the "stepper motor knob" project in the arduino learning examples library and I'm all out of ideas of why it's not working.
I'm using the 57BYGH420 unipolar stepper motor together with the UNL2004AN Darlington array. And I changed the "#define STEPS" in the code to 200. I'm feeding the motor with 3Volts from an external power supply.
Here's a link to the motor's data sheet. http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Robotics/57BYGH420.PDF
Can anyone get why it doesnt work?
I'll attach images to show how I put it together:
Hope someone can help me with this. Cheers!!