A4988 Stepper Motor Driver Carrier with Voltage Regulators
This is a breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver. It has two voltage regulators (5 V and 3.3 V), eliminating the need for separate logic and motor supplies. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). It operates from 8 – 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). This board ships with 0.1″ male header pins included but not soldered in.
|Description||Specs (10)||Pictures (6)||Resources (6)||FAQs (4)||On the blog (2)|
Allegro A4988 stepper motor driver datasheet (1MB pdf)
Dimension diagram of the A4988 Stepper Motor Driver Carrier with Voltage Regulators (502k pdf)
3D model of the A4988 Stepper Motor Driver Carrier with Voltage Regulators (5MB step)
Drill guide for A4988 Stepper Motor Driver Carrier with Voltage Regulators (51k dxf)
This DXF drawing shows the locations of all of the board’s holes.
Video: setting the current limit on Pololu stepper motor driver carriers
Heatsinking an A4988/A4983 stepper motor driver carrier
A4988 stepper motor driver heatsinking experiments. By Arduinodabbler, July 2012.