Based on Raspberry pi40PINGPO interface design, suitable for series motherboards, nano On-board two-way DRV8825 motor driver chip, built-in converter, easy to control, can drive two stepper motors Support to select six different step resolutions by DIP switch: full step, half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step Support to adjust motor drive current through potentiometer, support up to 2.5A current output Support over-current protection, thermal shutdown, under-voltage lockout The onboard 5V voltage regulator chip can directly supply power to the . Onboard a of stepper motor interfaces, it is convenient to connect to stepper motors of different specifications Motor driver chip: DRV8825 Logic level: 3.3V Motor drive voltage: 8.2V~28V Product size: 65x56mm Motor drive current: 2.5A Via diameter: 3.0mm Colour:blue Material: PCB Package Contents: 1 x Stepper Motor HAT Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.