const int button = 6;   
const int led = 3;     

bool buttonPressed = false; 
int buttonPressCount = 0;   

void setup() 
{
  pinMode(button, INPUT_PULLUP); 
  pinMode(led, OUTPUT);          
}

void loop() 
{
  bool buttonState = digitalRead(button);
  if (buttonState == LOW && !buttonPressed) 
  {
    delay(50); 
    buttonPressed = true;
    buttonPressCount++; 
    if (buttonPressCount == 2) 
    {
      buttonPressCount = 0;
    }
  } 
    else if (buttonState == HIGH && buttonPressed) 
  {
    delay(50); 
    buttonPressed = false;
  }
  if (buttonPressCount == 1) 
  {
    digitalWrite(led, HIGH); 
  } 
  else 
  {
    digitalWrite(led, LOW); 
  }
}