const int buttonPin = 2;     
const int ledPin =  13;      
int buttonState = 0;         
boolean pressed = false;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT); 
  pinMode(buttonPin, INPUT_PULLUP);  
     
}

void loop(){
  
 buttonState = digitalRead(buttonPin);  
 if (buttonState == pressed){
   while(buttonState == pressed)
   {
    buttonState = digitalRead(buttonPin);
    delay(55); 
   
   }
   static boolean output = HIGH;
   
    output = !output;
    if (output == LOW){
    digitalWrite(ledPin,HIGH);
    Serial.println("ON");
    }
    else{
    digitalWrite(ledPin,LOW);
     Serial.println("OFF");
    }
   
 } 
 
}