Feature On-board DIP switch, you can easily adjust the drive segments Terminal power connector for easy connection drive power Compatible

This expansion board as a driver expansion board, can be used for engraving machines, 3D printers, CNC. It is a

The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate. It operates

3 way signal generator LCD can display frequency and duty data, easy to upgrade Output of three channel PWM at