Features: The STSPIN220 Stepper Motor Driver Board featuring built in over current protective. This board simplifies connection with screw block for VMotor power and 4 wire bipolar steppers (26 20AWG), include STEP control pin, visible red yellow LED indicators for direction and movement, a reset/enable pin, and an integrated potentiometer for adjustable current limiting up to 1.3A. Designed for electronics enthusiasts, robotics engineers, educators, and professional requiring stepper motor driver solution for project. Perfectly suited for controlling 3D printer, positioning platforms in instrument, driving robotic joints, and operating pan tilt mechanisms in security cameras or monitoring systems. Achieve effortless motor control using just two pin from the module's low standby current and enjoy robust protective against short circuits, over temperature. Specifications: Component:Metal Size:Approx.27x24mm/0.94x1.06inch Chip: STSPIN220 Output current: 0.08A-1.3A (adjustable) Supply: 1.8V-10V Package Includes: 1Pc STSPIN220 Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.