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  • StepStick A4988 Stepper Driver Module
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    • images/l/Geeetech_A1_1.jpg images/l/Geeetech_A1_1.jpg
StepStick A4988 Stepper Driver Module


Shipping Weight:50g

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This product is a carrier board or breakout board for Allegro's A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection by Pololu; we therefore recommend careful reading of the A4988 datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil.



    * Short-to-ground and shorted-load protection

    * Adjustable current control

    * Intelligent chopping control

    * Over-temperature thermal shutdown

    * Under-voltage lockout

    * Crossover-current protection

    * Simple step and direction control interface

    * Full-step, Half-step, Quarter-step, Eighth-step, and Sixteenth-step

Main board that needs the A4988  stepper motor driver and the quantities are as follow:

Rumba — 6

mega 2560 + ramps 1.4 — 5

sansuinololu  — 4

mighty board — 5



More details please visit wiki page.



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  • Richard Kincses | 06/02/2016

    Hi i got this stepper motor driver, the Rs on top has R200 laber, but when i test it with a multimeter set to 200 ohm it says 01.0, My extruder motor is Nema 17 42SHD0217-24B and my board is a gt 2560 , the printer is an i3x pro. How much current should my stepper driver vref needs to be set to ?

    • rita xiang | 06/03/2016

      Hello Richard, Can you please provide your order number or the purchase link if it not bought from here.

      • Richard Kincses | 06/03/2016

        it was 6520

        • rita xiang | 06/07/2016

          0.4V-0.6V, 0.4A-0.6A

  • Salvador Richter | 04/13/2015

    Hi there, I bought some of those control boards for a robot project. Now two questions where I not found answer on wiki. How to Adjustable current control? There is no pin out. And on what default current setting are the red boards delivered? Thanks

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