int ledPin = 3;
int buttonPin = 2;
bool state = false;


void setup() {
 
  pinMode(ledPin,OUTPUT);
  pinMode(buttonPin, INPUT);

}

void loop() {
  
  if(digitalRead(buttonPin)==1)
  {
    while(digitalRead(buttonPin)==1){}
    if(state)
    {
      state=false;
      digitalWrite(ledPin, HIGH);
    }
    else
    {
      state = true;
       digitalWrite(ledPin, LOW);
    }  
  }
  



  
 

}