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. For further resources please see here.

Adjustable	current control
Type	Breakout board A4988