What does this example mean?

Other Hardware Motors, Mechanics, Power and CNC
1

So I found this code online for testing my steppermotor with a RAMPS V1.4 (the code works, so that is not the problem)
Can someone tell me how this works?
Can I change the speed, steps,... of the stepper?

#define X_STEP_PIN         54
#define X_DIR_PIN          55
#define X_ENABLE_PIN       38
#define X_MIN_PIN           3
#define X_MAX_PIN           2

#define SDPOWER            -1
#define SDSS               53
#define LED_PIN            13

#define PS_ON_PIN          12
#define KILL_PIN           -1

void setup() {
  pinMode(LED_PIN             , OUTPUT);
  pinMode(X_STEP_PIN          , OUTPUT);
  pinMode(X_DIR_PIN           , OUTPUT);
  pinMode(X_ENABLE_PIN        , OUTPUT);
  
  digitalWrite(X_ENABLE_PIN   , LOW);
 
}


void loop () {

  if (millis() %1000 <500) 
    digitalWrite(LED_PIN, HIGH);

  else
    digitalWrite(LED_PIN, LOW);

  if (millis() %10000 <5000) {
    digitalWrite(X_DIR_PIN    , HIGH);
  }
  else {
    digitalWrite(X_DIR_PIN    , LOW);
  }
  
    digitalWrite(X_STEP_PIN    , HIGH);
    delay(1);
    
    digitalWrite(X_STEP_PIN    , LOW);
 
}
2

The delay is what controls the speed. You can change to delayMicroseconds to get finer control to adjust it.

3

Robin2's simple stepper code tutorial may be of interest.

4

Does this also work with a RAMPV1.4?

5

Are you talking about the code in the tutorial? Did you read it?

6

Very probably, once you set the DIR and STEP pins appropriately. Enable may be needed too.

7 
void loop()
{
  Every half-second, 
    switch the LED between ON and OFF

  Every five seconds, 
    switch the stepper direction pin between clockwise and counterclockwise.

  Step the stepper one step
}
8

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