Features: The ULN2003 stepper motor driver board paired with 5V stepper motor delivers stable and performances, featuring easy plug and play installation via standard interfaces and LED indicators to monitor motor for seamless operations. This module includes ULN2003 driver chip, supports directly connection to development boards with A, B, C, D phase outputs, and incorporates four phase LED lights to visually display the 28BYJ 48 stepper motor working states for precise control. for enthusiasts, electronics hobbyists, and 3D printing users seeking components for robotics, automation projects, or educational experiments requiring motor integration. for scenarios like 3D printer part upgrades, robotic arm assemblies, or classroom demonstrations where efficient stepper motor driver functionality for smooth motion control. from circuit board materials, this stepper motor driver module ensures long quality and dependable use across various electronic applications for consistent results. Specifications: Rate voltages: DC5V 4 phases not-load absorption frequency: >600Hz not-load extraction frequency: >1000Hz Package Includes: 1PC ULN2003 Stepper Motor Driver Board 1PC 5V Stepper Motor note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.