/*
  MSJ Researchers World
  Date - 21st OCT 2024
  Mentor - Mr. Siranjeevi M
  Contact - 7373771991
*/

// Pin assignments
const int ledPin = 4;
const int buttonPin = 6;

// Variable to store button state
int buttonState = 0;

void setup() 
{
  pinMode(ledPin, OUTPUT);     // Set LED pin as output
  pinMode(buttonPin, INPUT);    // Set button pin as input
}

void loop() {
  // Read the state of the button
  buttonState = digitalRead(buttonPin);

  // If button is pressed, blink the LED
  if (buttonState == LOW) 
  { // LOW means button pressed (with pull-up)
    digitalWrite(ledPin, HIGH);  // LED ON
    delay(500);                  // Wait 500ms
    digitalWrite(ledPin, LOW);   // LED OFF
    delay(500);                  // Wait 500ms
  } 
  
  else 
  {
    digitalWrite(ledPin, LOW);   // Ensure LED stays OFF when button not pressed
  }
}