With this A4988/DRV8825 Stepper Motor Control Extension Board, you can easily control the stepper motors. Easy connection of cables via screw-less PC Terminals. Built-in DIP switch for adjusting driving microstep and to obtain different rotational speeds. 

 Features

• Directly plug-in famous A4988 or DRV8825 stepper driver
• Easily control the stepper motors via just 2 digital I/O.
• Easy connection of cables via screwless PC terminals
• Build-in DIP switch for adjusting driving modes

Steppr motor driver control board user manual