Features :

1 axis stepper motor driver
2.Compatible with micro-drive laser engraving machine, three-axis CNC engraving machine.
3.2A can be controlled within the two-phase four-wire stepper motor.
4.Released the digital IO interface, easy to connect to other modules, such as ENDSTOP.
5.Released the I2C interface, you can connect to the LCD I2C or other I2C module.
6.power DC5v interface, 7.5-12V voltage input.
7.GRBL compatible
8.worked with arduino nano.