This expansion board as a driver expansion board, can be used for engraving machines, 3D printersor CNC.
It is a total of three slots, can drive three A4988 stepper motor. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use.

Spesifcation:

• 3 axis stepper motor driver
• Compatible with micro-drive laser engraving machine, three-axis CNC engraving machine
• Can control the two-phase four-wire stepper motor up to 2A
• Digital IO interface enables easy connections to other modules, such as ENDSTOPs
• I2C interface enables connection to the LCD I2C or other I2C module
• DC5v interface, 7.5-12V voltage input
• GRBL compatible
• This model is designed to do full steps only
• Dimensions: 71.5 x 58 x 12.5mm