const int buttonPin = 2;  // Pin for the button
const int ledPin = 3;     // Pin for the LED
bool buttonPressed = false; // Variable to track if the button is pressed
unsigned long buttonPressTime = 0; // Variable to store the time the button was pressed
unsigned long ledOnTime = 0; // Variable to store the time when LED turned on
int waittime = 5000; // Variable to store the Wating time after button pressed
int duty = 2000; // Effective duty time  
void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Check if the button is pressed
  if (digitalRead(buttonPin) == HIGH && !buttonPressed) {
    buttonPressed = true;
    buttonPressTime = millis(); // Record the time when the button is pressed
  }

  // Check if 5 seconds have elapsed since button press
  if (buttonPressed && millis() - buttonPressTime >= waittime ) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    ledOnTime = millis(); // Record the time when the LED turned on
    buttonPressed = false; // Reset button state
  }

  // Check if 2 seconds have elapsed since LED turned on
  if (digitalRead(ledPin) == HIGH && millis() - ledOnTime >= duty) 
  {
    digitalWrite(ledPin, LOW); // Turn off the LED
  }
}