Bảng Mạch Mở Rộng Cnc Shield V3 A4988 Cho Máy In 3d

Product description:
The expansion board can be used as a driver extension board for engraving machine, 3d printer, etc., with a total of 4-way stepper motor drive module slot,(Note that this board does not contain a4988 stepper motor drive module, need to be purchased in our store)Drive the 4-way-out motor, and each stepper motor requires only 2 io ports, that is, 6 io ports can manage 3 stepper motors well, it is very convenient to use, leaving the traditional stepper motor cumbersome to operate.

Introduction to the correspondence between arduino uno and module io
The basic control of stepper motor requires the pins, other pins are used only in the engraving machine, or 3d printer. we do not elaborate here.
Arduino uno--extension board
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// here are simple stepper motor control procedures,







// function: step function: control step motor direction, step number.
// parameters: dir direction control, dirpin corresponding to stepper motor dir pins, stepperpin corresponding stepper motor stepper stepper stepper stepper stepper stepper step