The A4988/DRV8825 Stepper Motor Control Extension Board is a compact, easy-to-use module designed to simplify the control of stepper motors with just two digital I/O pins. This board is compatible with the widely used A4988 and DRV8825 stepper drivers, making it an excellent solution for a variety of automation and motion control projects. It features screwless PCB terminals, allowing quick and secure wire connections without tools, and a built-in DIP switch to easily adjust driving modes and achieve different micro-stepping configurations for precise motor control. With separate connectors for 5V logic power and 9V–24V motor power, this board ensures stable performance and flexible power management. The module is well-suited for CNC machines, 3D printers, robotics, and any project requiring efficient stepper motor control. Its small size and powerful features make it popular among hobbyists and professionals alike.

Features:

• Compatible with A4988 and DRV8825 Stepper Drivers: Direct plug-in for these popular motor drivers.
• Simple Control: Controls stepper motors using only two digital I/O pins.
• Screwless PCB Terminals: Fast and secure cable connections without the need for screwdrivers.
• Built-in DIP Switch: Adjust driving modes for different micro-stepping settings (16 or 32 steps).
• Dual Power Inputs: Separate connectors for 5V signal power and 9V–24V motor driver power.
• Compact Design: Small size makes it easy to integrate into various projects.
• Wide Voltage Range: Supports motor power from 9V to 24V for flexible compatibility.

Specifications:

• Compatible Drivers: A4988 / DRV8825
• Control Pins: 2 digital I/O (Step and Direction)
• Power Input (Signal): 5V DC
• Power Input (Motor): 9V–24V DC
• Micro-stepping Support: 16 segments (A4988) / 32 segments (DRV8825)
• Connector Type: Screwless PCB terminals
• Operating Current: Based on connected driver specifications
• Board Dimensions: Compact and lightweight for easy integration

Pinout :

Connection Guide:

1. Connect Stepper Driver: Carefully insert the A4988 or DRV8825 driver into the board, ensuring correct orientation to avoid damage.
2. Wire the Motor: Connect the stepper motor wires to the Jm terminal.
3. Power Supply:
   • Connect 5V DC to the Jv terminal for logic power.
   • Connect 9V–24V DC for motor power.
4. Control Pins: Connect the Step, Dir, En, and Gnd pins to your microcontroller’s digital I/O.
5. Adjust Micro-stepping: The built-in DIP switch sets the desired micro-stepping mode.

Package Includes:

• 1x A4988/DRV8825 Stepper Motor Control Extension Board