int speaker = 13;                
int inputPin = 2;               
int pirState = LOW;             
int val = 0;   
int                  

void setup() {
  pinMode(speaker, OUTPUT);     
  pinMode(inputPin, INPUT);

  Serial.begin(9600);
}

void loop() {
  val = digitalRead(inputPin);  
  Serial.println(val);
  if (val == HIGH) {            
    tone(speaker, 1000);
    }
   
  
  }