const int sensePin = 2;
const int alertSound = 3;
const int lightYes = 4;
const int lightNo = 5;

void setup() {
  pinMode(sensePin, INPUT);
  pinMode(alertSound, OUTPUT);
  pinMode(lightYes, OUTPUT);
  pinMode(lightNo, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int sensorState = digitalRead(sensePin);
  if (sensorState == HIGH) {
    digitalWrite(alertSound, HIGH);
    digitalWrite(lightYes, HIGH);
    digitalWrite(lightNo, LOW);
    Serial.println("Motion detected.");
  } else {
    digitalWrite(alertSound, LOW);
    digitalWrite(lightYes, LOW);
    digitalWrite(lightNo, HIGH);
    Serial.println("No motion.");
  }
  delay(1000);
}