I have a very simple question:
I am trying to power five 28BYJ-48 stepper motors attached to some ULN2003 driving boards but I am confused about the amperage I need. Each of the stepper motors needs 5V and 250mA to run and my driving boards take up to 500mA.
I'm wondering if I need to buy a power supply that's 5V/250mA or 5V/1.25A? If its the latter I'm worried that my driving boards may fry under the high amperage, what should I do about that?
Many thanks to anyone that can help.