Mạch ArduinoS CNC Shield Mở Rộng Cho A4988

Mạch ArduinoS CNC Shield Mở Rộng Cho A4988

- Chức năng: Là bo mạch mở rộng có thể sử dụng như mạch điều khiển (Driver) cho động cơ, máy in 3D, động cơ bước..

- Arduino UNO ---------------------- expansion board
8 ------------------------ EN (stepper motor drive enable, active low)
7 ----------------------- Z.DIR (direction control of Z axis)
6 ----------------------- Y.DIR (direction control of the Y axis)
5 ----------------------- X.DIR (X-axis direction control)
4 ---------------------- Z.STEP (Z-axis step control)
3 ---------------------- Y.STEP (stepping control of Y axis)
2 ---------------------- X.STEP (X-axis step control)

/The following is a simple stepper motor control program.
#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 step control
#define Y_STP 3 //y axis step control
#define Z_STP 4 //z axis step control

/ / Function: step Function: control the direction of the stepper motor, the number of steps.
//Parameter: dir direction control, dirPin corresponds to the DIR pin of the stepper motor, stepperPin corresponds to the step pin of the stepper motor, steps step number of steps

//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(){//Set the IO pin used by the stepper motor 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 reverses 1 turn, 200 steps for one turn
Step(false, Y_DIR, Y_STP, 200); //y-axis motor reverses 1 turn, 200 steps for one turn
Step(false, Z_DIR, Z_STP, 200); //z-axis motor reverses 1 turn, 200 steps for one turn

Delay(1000);
Step(true, X_DIR, X_STP, 200); //X-axis motor is rotating 1 turn, 200 steps is a circle
Step(true, Y_DIR, Y_STP, 200); //y-axis motor rotates one turn, 200 steps for one turn
Step(true, Z_DIR, Z_STP, 200); //z-axis motor rotates one turn, 200 steps for one turn
Delay(100