EasyDriver 4.4 (Stepper Motor Driver)

Overview

The EasyDriver 4.4 is a compact, bi-polar stepper motor driver board from Schmalz Haus (a.k.a. Brian Schmalz). It's designed to simplify driving small stepper motors, making it an ideal choice for hobbyist CNC machines, 3D printers, and robotics projects. With the ability to drive up to 750mA per phase, it's perfect for small NEMA 14, 17, and 23 motors. The board features an on-board voltage regulator, so you can power it with a single supply voltage from 6V to 30V, and it can accept logic signals from 3.3V or 5V microcontrollers.

Key Features

• Simple Step/Direction Interface: Control with just two pins (STEP and DIR) from your microcontroller or CNC controller.
• Adjustable Current Control: Set the motor current via a potentiometer to match your motor's specifications.
• Microstepping Support: Provides full-step, half-step, and quarter-step microstepping options via MS1 and MS2 pins.
• On-Board 5V Regulator: Can supply 5V to your logic circuit (limited current), simplifying wiring.
• Wide Voltage Range: Operates from 6V to 30V, giving flexibility for various power supplies.
• Compact Form Factor: Small footprint (0.6 x 0.8 inches) fits easily into tight spaces.
• Thermal Protection: Includes over-temperature protection to prevent damage.

Technical Specifications

• Motor Drive Voltage: 6V to 30V DC
• Motor Current: Up to 750mA per phase (adjustable)
• Logic Voltage: 3.3V to 5V (can also run from motor supply via on-board regulator)
• Microstepping: Full, Half, Quarter (1/4)
• Interface: STEP and DIR pins (two-wire)
• On-Board Regulator Output: 5V (up to 50mA for external logic)
• Dimensions: 0.6 x 0.8 inches (15.24 x 20.32 mm)
• Weight: 5 grams (approx.)

Applications & Use Cases

• Small CNC Machines: Perfect for driving steppers in small desktop CNC mills, engravers, and plotters.
• 3D Printers: Ideal for small to medium 3D printer axes.
• Robotics: Great for hobby robotics projects where precise motor control is needed.
• Automation: Use in small automated systems, camera sliders, and telescope mounts.
• Educational Projects: Excellent for learning stepper motor control and microstepping.

What's Included

• 1x EasyDriver 4.4 Stepper Motor Driver board
• (Note: Stepper motor and power supply are not included)

Compatibility

• Works with a wide range of bi-polar stepper motors, including NEMA 14, 17, and 23 (up to 750mA per phase).
• Compatible with Arduino, Raspberry Pi, and other microcontrollers via GPIO pins.
• Can be used with popular CNC software like GRBL and Mach3 (with appropriate interface).

MOKWN Recommendation

For makers in Egypt looking to build a small CNC or robotics project, the EasyDriver 4.4 is a reliable and cost-effective solution. Its simplicity and robust design make it a great choice for beginners and experienced hobbyists alike. At MOKWN, we recommend pairing it with a quality stepper motor and a 12V power supply for optimal performance. Order yours today and start creating!