GRBL Compatible-CNC Shield to DRive 4x Ramps A4988 Stepper Driver Boards
- This expansion board as a driver expansion board, can be used for engraving machines, 3D printers.
- It is a total of four slots, can drive four 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.
- UNO for Arduino module IO port correspondence introduction.