void setup()
{
  pinMode(A0, INPUT);
  pinMode(7, OUTPUT);
  pinMode(13, OUTPUT);

  Serial.begin(9600);
  Serial.flush();
  while (Serial.available() > 0)Serial.read();

}


void loop()
{

  if ((map(analogRead(A0), 0, 1023, 0, 100) < 80)) {
    for (int count = 0; count < 5; count++) {
      digitalWrite(7, HIGH);
      digitalWrite(13, HIGH);
      delay(300);
      digitalWrite(7, LOW);
      digitalWrite(13, LOW);
      delay(300);
    }
  }
  else {
    digitalWrite(7, LOW);
    digitalWrite(13, LOW);
    delay(500);
  }

  Serial.println(map(analogRead(A0), 0, 1023, 0, 100));

}