const int buttonPin = 8;
const int ledPin = 9;
int buttonState = LOW;
int lastbuttonState = LOW;
bool buttonToggled = false;
int dt = 100;

void setup() {
  Serial.begin(9600);
  pinMode(buttonPin, INPUT_PULLUP);
  //pinMode(ledPin, OUTPUT);
}

void loop() {
  buttonState = digitalRead(buttonPin);
 // Serial.print("Button State = ");
 // Serial.println(buttonState);

  if(buttonState != lastbuttonState)
  {
    if(buttonState == LOW)
    {
      buttonToggled = !buttonToggled; 
      if(buttonToggled){
        Serial.println("Button is Pressed");
      }
      else{
        Serial.println("Button is not pressed");
      }
    }
   delay(dt);
  }
  lastbuttonState = buttonState;
 
}