void setup(){


  pinMode(14, OUTPUT);
  pinMode(12, INPUT);
  pinMode(27, INPUT);

}

int bt1 = 0,
    bt2 = 0,
    k1=0;


void loop(){

  bt1 = digitalRead(12);
  bt2 = digitalRead(27);

  if((bt1 == 1)||(k1 == 1)){

  k1=1;
  digitalWrite(14,HIGH);
  delay(1000);
  digitalWrite(14, LOW);
  delay(1000);

  }
  
  if(bt2 == 1){

    k1=0;
    digitalWrite(14, LOW);
  }

}