V3 Engraver 3D Printer New CNC Shield Expansion Board A4988 Driver for Arduino E, US $740 – Picture 0

V3 Engraver 3D Printer New CNC Shield Expansion Board A4988 Driver for Arduino E, US $740 – Picture 1

V3 Engraver 3d Printer New Cnc Shield Expansion Board A4988 Driver For Arduino E

US $740

Hong Kong, Hong Kong
Nov 10th

Open on mobile:
QR code

V3 Engraver 3D Printer New CNC Shield Expansion Board A4988 Driver for Arduino E Features: 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. e.g.UNO module IO port correspondence introduction: IO corresponding figure above UNO 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 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 include: 1Pcs Cnc shield v3 engraving machine -We Only accept Paypal payment. *We are unable to ship to PO Boxes or APO/FPO addresses -International Buyers-Please Note: a)Import dutiesm taxes and charges are not included in the item price or shipping charges .These charges are the buyer's responsibility. b)Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. Thank you! -All our products have been checked and packaged in good condition. If the items you received is defective, please inform us within 7 days upon receipt of item, we will replace another new one or refund if stock out (shipping fee is not refundable) -Buyers have to pay for the return cost and we pay the cost for reshipping. -Please add a piece of paper written your eBay ID accompanied with the returned item so that we could process the replacement/refund accordingly. Fackback: If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week. We will reply you ASAP. If no response within 24 Hours, please check the spam in your mail box. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help. Our aim is to provide Top Level Customer Service, so we will try our best to solve any problem. Please DON’T leave negative or neutral feedback if you haven’t received item in 30 days, because we have mentioned the shipping time repeatedly. On Nov-10-16 at 11:00:05 PST, seller added the following information:On Nov-10-16 at 11:05:31 PST, seller added the following information: