int PIR = 14;
int buzz = 19;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(PIR, INPUT);
  pinMode(21, OUTPUT);
  pinMode(buzz, OUTPUT);
  }

void loop() {
  int Reading =digitalRead(PIR);
  Serial.println(Reading);
  if (Reading==1)
  {
    digitalWrite(21, HIGH);
    tone(buzz,250);
  
  }
  else
  {
    digitalWrite(21, LOW);
    noTone(buzz);
  }
   delay(10); // this speeds up the simulation
}