Pololu 2128 A4988 Stepper Motor Driver Breakout Board

This stepper motor carrier is a breakout board designed for use with the A4988 DMOS microstepping bipolar stepper motor driver. The increased performance from the 4-layer PCB improves thermal performance, allowing the driver to deliver 20% more current than previous carriers. The breakout board gives five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step, and there is adjustable current limiting, over-current and over-temperature protection.

The board operates from 8 to 35V and can deliver up to 2A per coil with adequate thermal management. The driver carrier ships with all surface-mount components - including the A4988 driver IC - installed, and is packaged with 0.1in male header pins included but not soldered in.

* Simple step and direction control interface

* Adjustable current control

* Intelligent chopping control

* Under voltage lockout

* Crossover current protection

* Short-to-ground and shorted-load protection

* Exposed solderable ground pad on bottom of PCB

This breakout board is just one of the many Pololu accessories carried by Rapid.

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