# LED Blink rev_01

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    - Project: # LED Blink
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2026-01-22 16:08:55

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* Manage a lite LED component on Arduino Uno D2 pin */
    /* to enable basic lighting control with digital */
    /* output functionality for prototyping. */
/****** END SYSTEM REQUIREMENTS *****/


/****** DEFINITION OF LIBRARIES *****/
// No external libraries required for basic digital output control

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void ledOn(void);
void ledOff(void);
void ledBlink(int blinkCount, int delayMs);

/****** DEFINITION OF DIGITAL OUTPUT PINS *****/
// LED Pin Variable - Lite LED connected to Arduino Uno D2 pin
const int LED_PIN = 2;  // LED connected to digital pin 2

/*
 * setup() - This function runs once when you turn your Arduino on
 * We configure the D2 pin as a digital output for LED control
 */
void setup()
{
  // Set D2 pin to output mode for controlling the lite LED
  pinMode(LED_PIN, OUTPUT);

  // Initialize LED to OFF state
  digitalWrite(LED_PIN, LOW);
}

/*
 * loop() - This function will start after setup finishes and then repeat
 * Demonstrates basic LED control with blinking pattern
 */
void loop()
{
  // Turn LED on for 1 second
  ledOn();
  delay(1000);

  // Turn LED off for 1 second
  ledOff();
  delay(1000);

  // Blink the LED 3 times with 300ms interval
  ledBlink(3, 300);
  delay(1000);
}

/*
 * ledOn() - Turns on the lite LED on D2 pin
 * Provides digital HIGH output to enable the LED
 */
void ledOn(void)
{
  // Set D2 pin to HIGH to turn on the LED
  digitalWrite(LED_PIN, HIGH);
}

/*
 * ledOff() - Turns off the lite LED on D2 pin
 * Provides digital LOW output to disable the LED
 */
void ledOff(void)
{
  // Set D2 pin to LOW to turn off the LED
  digitalWrite(LED_PIN, LOW);
}

/*
 * ledBlink() - Blinks the lite LED on D2 pin
 * Parameters:
 *   blinkCount - Number of times to blink the LED
 *   delayMs - Delay in milliseconds between each blink state change
 */
void ledBlink(int blinkCount, int delayMs)
{
  // Perform the blink cycle the specified number of times
  for(int i = 0; i < blinkCount; i++)
  {
    // Turn LED on
    ledOn();
    delay(delayMs);

    // Turn LED off
    ledOff();
    delay(delayMs);
  }
}

/* END CODE */