Welcome to the store! 1. 6 Different Step Resolutions: The stepper motor driver board supports 6 step resolutions selectable via DIP switch: full step, half step, 1/4 step, 1/8 step, 1/16 step, and 1/32 step. 2. HR8825 Motor Driver Chip: Features two built-in HR8825 motor drivers with an integrated converter, making control easy and capable of driving two stepper motors. 3. GPIO Interface Design: Based on the for Raspberry Pi 40 PIN GPIO interface design, suitable for Raspberry Pi series motherboards and for Jetson for Nano. 4. 2.5A Current Output: The motor controller supports adjusting the motor drive current via a potentiometer, with an output of up to 2.5A. 5. Overcurrent Protection: Motor controllers support overcurrent protection, thermal shutdown, and undervoltage lockout. The built-in 5V voltage regulator chip can directly power the Raspberry Pi. Various built-in stepper motor interfaces allow for easy connection to different specifications of stepper motors. Item Type: Stepper Motor HAT Material: PCB Motor Driver: HR8825 Motor Drive Voltage: 8.2-28V Motor Drive Current: 2.5A Logic Level: 3.3V Package Includes: 1 x Stepper Motor Driver Board 1 x Cooling Aluminum Block 3 x Screws 3 x Nuts 2 x Standoffs Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately for the best solution!