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HF-3DV3 CNC V3 Expansion Module - Red
The expansion board can be used as engraving machines£¬ 3D printers£¬ and other driven expansion board£¬ a total of four slots stepper motor driver module can drive four stepper motor£¬ stepper motor and each road only need two IO port£¬ that is£¬ six IO port can be be well managed three stepper motor£¬ very convenient to use£¬ say goodbye to traditional stepper motor operation cumbersome. It is noteworthy: stepper motor reverse circle£¬ stop one second£¬ and then turn around the positive£¬ so the cycle. In connector A4988 module when careful not interpolated reversed. Stepper motor wiring is: 2A£¬ 2B is a set of (red£¬ green)£¬ 1A£¬ 1B to a set of (blue£¬ yellow) wants to change direction£¬ change in the position of one group can be£¬ for example exchanged with 2A 2B.