int temp;
void setup() {
  // put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(A2, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  temp = analogRead(A2);
  Serial.println(temp);
  if(temp<454){
    digitalWrite(13, HIGH);
    digitalWrite(2, HIGH);
    tone(2,100,10);
  } else{
    digitalWrite (13, LOW);
  }
}