The DRV8825 Stepper Motor Driver with Aluminum Heat Sink is a breakout board based on TI’s DRV8825 microstepping bipolar stepper motor driver.
This module features a pinout and interface nearly identical to the A4988 stepper motor driver, making it an ideal drop-in replacement for higher performance in many applications.
The DRV8825 offers adjustable current limiting, overcurrent and overtemperature protection, and supports six microstep resolutions, down to 1/32-step. It operates within a voltage range of 8.2V to 45V and can deliver up to 1.5A per phase without a heat sink or forced airflow (up to 2.2A per coil with additional cooling).
 
Features:
Microstep resolutions: full-step, 1/2-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
Simple step and direction control interface
Adjustable current control via a potentiometer, allowing use of higher voltages than your stepper motor's rated voltage to achieve faster step rates
Intelligent chopping control that automatically selects the appropriate current decay mode (fast decay or slow decay)
45V maximum supply voltage
Built-in regulator, no need for an external logic voltage supply
Compatible with 3.3V and 5V systems
Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout protection
Protection against short-to-ground and shorted-load conditions
4-layer, 2 oz copper PCB for better heat dissipation
Exposed solderable ground pad below the driver IC for enhanced cooling
Package Includes: 1 x DRV8825 Stepper Motor Driver with Aluminum Heat Sink