int LED = 12;
int button = 13;
int mode = 0;
int pin_Mode = 0;

void setup() {
  pinMode(LED, OUTPUT);
  pinMode(button, INPUT);
  Serial.begin(9600);
  }

void loop() {

  int mode = digitalRead(button);
  if (mode == HIGH){
    pin_Mode = !pin_Mode;
    delay(500);
    }
  if (pin_Mode == HIGH){
    digitalWrite(LED, HIGH);
    Serial.println(pin_Mode);
    }
   else{
    digitalWrite(LED, LOW);
    Serial.println(pin_Mode);
   }
}