int val;

void setup() {
  Serial.begin(9600);
  pinMode(8, INPUT);
  digitalWrite(8, HIGH);
  pinMode(2,OUTPUT);

  // put your setup code here, to run once:

}

void loop() {
  val = digitalRead(8);
  Serial.print(" the butten is : ");
  Serial.println(val);
  if(val == 0){
    digitalWrite(2, HIGH);
    
  }
  else{
    digitalWrite(2, LOW);
    
  }
  // put your main code here, to run repeatedly:

}