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I want to build a 6 axis robot arm. Probably i will use Nema 17 and 14 stepper motors with 2A-3A. For these motor types i need stepper drivers. I searched for driver arrays but can not find a product. Do you know one? If not:

  • Are all steppers working with 5V?
  • Did someone build a driver (PCB with chip)?
  • Which chips can i use?

Thank you.

closed as off-topic by gre_gor, user31481, per1234, Dave X, Avamander Dec 16 '17 at 0:23

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question does not appear to be about Arduino, within the scope defined in the help center." – gre_gor, Community, per1234, Dave X
If this question can be reworded to fit the rules in the help center, please edit the question.

  • Welcome to Arduino SE. Please realize that this is not a free design house, homework-answering service or an on-line technical encyclopedia, copied out to you on demand. People will help you take the next step if your question shows that you've done as much as you possibly could on your own - which your post doesn't. Please revise your question showing your work and findings so far. Or delete the question if Internet searches give you your answer anyway. – user31481 Dec 13 '17 at 0:13
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The NEMA specification dictates the dimensions of the motor, but generally not the electrical specifications. The voltage used to drive the coils on steppers is part of the motor's electrical specifications, found on the data sheet for the motor.

5V is probably not the most common coil voltage for a stepper, unless it's relatively small or weak motor.

There are several stepper motor modules, making use of a variety of discrete components and/or dedicated driver ICs.

Hobby type steppers are often bi-polar, and have 2 sets of coils, and thus you need 2 independent H-Bridges to properly drive it.

Some available driver ICs and modules that use them include:

Allegro MicroSystems' A4988

TI DRV8825, TI DRV8880, TI DRV8834

AMIS-30543

It should be easy to find boards based around chips like these to drive your stepper from an Arudino.

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