Drv8825 Stepper Motor module

The DRV8825 Stepper Motor Module is a high-performance stepper driver offering up to 1/32 microstepping and higher current capacity than the A4988. It is ideal for high-torque stepper applications and precision motion control.

Key Features

• Up to 1/32 microstepping for ultra-smooth motion
• 2.2A per coil max with adequate cooling
• Adjustable current limiting via potentiometer
• Higher current capacity than A4988
• Lower RDS(on) for reduced heat generation
• STEP/DIR interface for simple control
• Protections: over-current, over-temperature, UVLO

Technical Specifications

Applications

• High-torque stepper applications
• Precision CNC milling
• High-resolution 3D printing
• Smooth motion camera sliders
• Precision liquid handling
• Automated testing equipment

Important Notes

• CRITICAL: Adjust current limit BEFORE connecting motor
• Formula: Current Limit = Vref × 2 (for DRV8825)
• Heatsink + cooling fan REQUIRED for >1.5A operation
• Higher microstepping reduces torque – balance resolution vs power
• Do not disconnect motor while powered – will destroy driver
• MODE0, MODE1, MODE2 pins set microstep resolution