This kit is complete electronics package to build small CNC router, engraver, mill or robot. Kit includes CNC V3 Arduino shield, new yellow style Arduino UNO R3 Compatible board, it has all the latest changes and features and DRV8825 Stepper Drivers. UNO R3 Board has miniature micro USB connector for connection with the computer.
CNC V3 Shield features:Sketch code sample to run steppers:
# 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);
}
Package contents: