V3 Engraver 3D Printer CNC Shield Expansion Board A4988 Driver for Arduino

Features: 100% brand new and high quality This expansion board can be used for engraving machines & 3D printers 4 stepper motor connection. Each connection can control one A4988 moter That means you can connect 4 stepper motors into this board Each road stepper motors only need two IO ports In other words, six IO ports can be well managed Connection Instruction When inserting the A4988 module, must be careful not to insert opposite Stepper motor wiring as follows:2A, 2B is a group (red, green), 1A, 1B is a group (blue, yellow) If you want to change direction, change the position of one group Example: 2A and 2B can mutually be exchanged Package Includes: 1 x V3 Engraver 3D Printer CNC Shield Expansion Board A4988 Driver for Arduino