USD 13.40/pieceUSD 9.22/pieceUSD 11.57/pieceUSD 8.98/pieceUSD 8.98/pieceUSD 12.58/pieceUSD 53.68/pieceUSD 17.50/piece
A4988 Driver CNC Shield Expansion Board for Arduino V3 Engraver 3D Printer FZ1350
100% brand new and high quality
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.
IO corresponding figure above
UNO for Arduino———————- expansion board
8 ———————— EN ( stepper motor driver enable , active low )
7 ———————– Z.DIR (Z -axis direction control )
6 ———————– Y.DIR (Y -axis direction control )
5 ———————– X.DIR (X -axis direction control )
4 ———————- Z.STEP (Z -axis stepper control )
3 ———————- Y.STEP (Y -axis stepper control )
2 ———————- X.STEP (X -axis stepper control )
/ / The following is a simple stepper motor control procedures,
# define EN 8 / / stepper motor enable , active low
# define X_DIR 5 / / X -axis stepper motor direction control
# define Y_DIR 6 / / y -axis stepper motor direction control
# define Z_DIR 7 / / z axis stepper motor direction control
# define X_STP 2 / / x -axis stepper control
# define Y_STP 3 / / y -axis stepper control
# define Z_STP 4 / / z -axis stepper control
/ / Function : step . function: to control the direction of the stepper motor , the number of steps .
/ / Parameters : dir direction control , dirPin corresponding stepper motor DIR pin , stepperPin corresponding stepper motor ” step ” pin , Step number of step of no return value.
void step (boolean dir, byte dirPin, byte stepperPin, int steps)
digitalWrite (dirPin, dir);
for (int i = 0; i <steps; i + +)
digitalWrite (stepperPin, HIGH);
digitalWrite (stepperPin, LOW);
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|
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