quick help

hey
so im new to the whole arduino coding and what not, i need help with making my leds pulse. i have coding for them to do that but its constants, i only want it to fade 3 to 4 times
could anyone help me?

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Welcome.
Lots here can help.
Show us your code as mentioned
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ahaha sorry, im new to this forum stuff ahaha
here is the code i got off the public domain

/*
 Fade

 This example shows how to fade an LED on pin 9
 using the analogWrite() function.

 The analogWrite() function uses PWM, so if
 you want to change the pin you're using, be
 sure to use another PWM capable pin. On most
 Arduino, the PWM pins are identified with 
 a "~" sign, like ~3, ~5, ~6, ~9, ~10 and ~11.

 This example code is in the public domain.
 */

int led = 9;           // the PWM pin the LED is attached to
int brightness = 0;    // how bright the LED is
int fadeAmount = 5;    // how many points to fade the LED by

// the setup routine runs once when you press reset:
void setup() {
  // declare pin 9 to be an output:
  pinMode(led, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  // set the brightness of pin 9:
  analogWrite(led, brightness);

  // change the brightness for next time through the loop:
  brightness = brightness + fadeAmount;

  // reverse the direction of the fading at the ends of the fade:
  if (brightness == 0 || brightness == 255) {
    fadeAmount = -fadeAmount ;
  }
  // wait for 30 milliseconds to see the dimming effect
  delay(30);
}

This will do 3 pulses, if you need 3 or 4 then you can use randomSeed() and random() in setup() to set the value of pulses, if you give that a try and have trouble post your code and I’ll help you out.

/*
  Fade

  This example shows how to fade an LED on pin 9
  using the analogWrite() function.

  The analogWrite() function uses PWM, so if
  you want to change the pin you're using, be
  sure to use another PWM capable pin. On most
  Arduino, the PWM pins are identified with
  a "~" sign, like ~3, ~5, ~6, ~9, ~10 and ~11.

  This example code is in the public domain.
*/

int led = 9;           // the PWM pin the LED is attached to
int brightness = 0;    // how bright the LED is
int fadeAmount = 5;    // how many points to fade the LED by
byte pulses = 3; // how many pulses to do before stopping
byte pulseCount;  // used to keep track of how many pulses have been done

// the setup routine runs once when you press reset:
void setup() {
  // declare pin 9 to be an output:
  pinMode(led, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  if (pulseCount <= pulses) {  // check if enough pulses have happened
    // set the brightness of pin 9:
    analogWrite(led, brightness);
    if (brightness == 0) {  // the pulse is complete
      pulseCount++; // increment the pulse count value
    }
    // change the brightness for next time through the loop:
    brightness = brightness + fadeAmount;

    // reverse the direction of the fading at the ends of the fade:
    if (brightness == 0 || brightness == 255) {
      fadeAmount = -fadeAmount ;
    }
    // wait for 30 milliseconds to see the dimming effect
    delay(30);
  }
}

So if this is incorporated in a larger program and you need to do another set of pulses then just do:

pulseCount = 0;