Pinchdart Arduino uno CNC Shield V3 With 4 pcs A4988 Stepper Motor Driver Electronic Components Electronic Hobby Kit

Each road stepper motors only need two IO ports. 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. Stepper motor wiring as follows: 2A, 2B is a group (red, green), 1A, 1B is a group (blue, yellow), if want to change direction, can be change the position of one group , for example 2A, 2B mutually exchanged. Note: When inserting the A4988 module, must be careful not to insert opposite