2PCS A4988 Driver CNC Shield Expansion Board for Arduino V3 Engraver 3D Printer, US $9.78 – Picture 0

2PCS A4988 Driver CNC Shield Expansion Board for Arduino V3 Engraver 3D Printer, US $9.78 – Picture 1

2pcs A4988 Driver Cnc Shield Expansion Board For Arduino V3 Engraver 3d Printer

US $9.78

ShenZhen, China
Jun 9th

Open on mobile:
QR code

Description 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); delay (50); for (int i = 0; i <steps; i + +) { digitalWrite (stepperPin, HIGH); delayMicroseconds (800); digitalWrite (stepperPin, LOW); delayMicroseconds (800); } } void setup () {/ / The stepper motor used in the IO pin is set to output pinMode (X_DIR, OUTPUT); pinMode (X_STP, OUTPUT); pinMode (Y_DIR, OUTPUT); pinMode (Y_STP, OUTPUT); pinMode (Z_DIR, OUTPUT); pinMode (Z_STP, OUTPUT); pinMode (EN, OUTPUT); digitalWrite (EN, LOW); } void loop () { step (false, X_DIR, X_STP, 200); / / X axis motor reverse 1 ring, the 200 step is a circle. step (false, Y_DIR, Y_STP, 200); / / y axis motor reverse 1 ring, the 200 step is a circle. step (false, Z_DIR, Z_STP, 200); / / z axis motor reverse 1 ring, the 200 step is a circle. delay (1000); step (true, X_DIR, X_STP, 200); / / X axis motor forward 1 laps, the 200 step is a circle. step (true, Y_DIR, Y_STP, 200); / / y axis motor forward 1 laps, the 200 step is a circle. step (true, Z_DIR, Z_STP, 200); / / z axis motor forward 1 laps, the 200 step is a circle. delay (1000); } Note: 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 want to change direction, can be change the position of one group , for example 2A, 2B mutually exchanged. Package included: 2 x A4988 Driver CNC Shield Expansion Board for Arduino V3 Engraver 3D Printer NEW Shipping Terms 1. WORLDWIDE Free SHIPPING. (Except China) 2. Orders processed within 24 hours of payment verification. 3. We only ship to confirmed eBay addresses. Your eBay address MUST MATCH your Shipping address. 4. The images shown are not the actual item and are for your reference only. 5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. No Tracking Number The shipping cost is very low,we are not responsible for any loss in the mail if the item not insured(no-registered mail). Registered Post Shipping cost: Would better to Add 3 USD to Upgrade---- Registered Post(Choose "Standard Int'l Shipping" for one item,and others choose free shipping.we can send all your items in one box with tracking number.) Express Courier Need URGENT? We offer a varienty of shipping methods (Expedited Int'l Shipping) to meet your needs.If you need it Urgent, please contact us to Upgrade the shipping to Express. Payment Terms 1.We accept payment via PAYPAL ONLY. 2. Payment must be made within 4 days of auction closing. (Non-payment may result in a UPI (Unpaid Item) being put on your account. eBay will automatically close your account if you accumulate 4 UPI's total.) 3. TOTAL AMOUNT DUE includes the final auction price plus S&H(Shipping and Handling). 4. S&H will be determined based upon the SHIP TO address. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. 5. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. Links for related products Engineered for professional eBay sellers! On Oct-18-14 at 00:20:08 PDT, seller added the following information:

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Unbranded/Generic
Country/Region of Manufacture	China
Model	V3 CNC Shield
UPC	Does not apply
MPN	V3 CNC Shield