Pololu DRV8825 Stepper Motor Driver Carrier
Overview
The Pololu 2133 is a compact breakout board for the TI DRV8825 bipolar stepper motor driver. It supports a wide operating voltage range from 8.2V to 45V and can deliver up to 1.5A per phase without a heat sink.
Why Choose This Part
It offers six different microstep resolutions down to 1/32-step and includes an adjustable current limiting potentiometer to prevent motor damage. The module features built-in protection against over-temperature, over-current, and under-voltage conditions.
Applications
Getting Started
Connect a 8.2V to 45V power supply to VMOT and GND, ensuring a large electrolytic capacitor is placed near the board to prevent LC voltage spikes. Interface the STEP and DIR pins with any 3.3V or 5V microcontroller, and adjust the current limit via the onboard trimmer while measuring VREF.
