#include <Servo.h>
const int gasPin = 4;
const int servoPintu = 5;
const int echoPin = 6;
const int trigPin = 7;
const int pirPin = 8;
const int servoKeran = 9;
const int Pintu = 12;
const int buzzer = 13;
Servo myPINTU;
Servo myKERAN;

void setup() {
  Serial.begin(9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(pirPin, INPUT);
  pinMode(gasPin, INPUT);
  pinMode(Pintu, OUTPUT);
  pinMode(buzzer, OUTPUT);
  myPINTU.attach(servoPintu);
  myKERAN.attach(servoKeran);
  myPINTU.write(0);
  myKERAN.write(0);
}
void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration / 58);
  int motionDetected = digitalRead(pirPin);
  int gasLevel = digitalRead(gasPin);
  if (distance < 5) {
    digitalWrite(Pintu, HIGH);
    Serial.println("Pintu Terbuka");
      myPINTU.write(180);
      delay(500);
  } else {
    digitalWrite(Pintu, LOW);
    Serial.println("Pintu Terkunci");
    delay(500);
    myPINTU.write(0);
  }

  if (motionDetected) {
    myKERAN.write(180);
    Serial.println("Gerakan Terdeteksi: Keran Menyala");
  } else {
    myKERAN.write(0);
    Serial.println("Tidak ada gerakan: Keran Mati");
  }

  if (gasLevel) {
    digitalWrite(buzzer, HIGH);
    Serial.println("Gas Terdeteksi: Alarm Emergency Aktif");
  } else {
    digitalWrite(buzzer, LOW);
    Serial.println("Gas Aman: Alarm Mati");
  }
  Serial.print("Jarak: ");
  Serial.print(distance);
  Serial.println(" cm");
  Serial.println(" ");
  delay(500);
}