#include <LiquidCrystal_I2C.h>
#include <Servo.h>
#include <DHT.h>

// Pin setup
const int trigPin = 12;
const int echoPin = 13;
const int servoPin = 9;
const int buzzerPin = 10;
const int dhtPin = 3;
const int pirPin1 = 11; // Pin untuk sensor PIR 1
const int pirPin2 = 1; // Pin untuk sensor PIR 2
const int pirPin3 = 2; // Pin untuk sensor PIR 3
const int ledPin1 = 0; // Pin untuk LED 1
const int ledPin2 = 4; // Pin untuk LED 2


// LCD setup
LiquidCrystal_I2C lcd(0x27, 16, 2);

// DHT sensor setup
#define DHTTYPE DHT22
DHT dht(dhtPin, DHTTYPE);

// Servo setup
Servo myServo;

// Variabel
int jarak;
float suhu, kelembaban;
int batasJarak = 80; // Sesuaikan batas jarak aman
int sudutMax = 180; // Sudut maksimum pergerakan servo
int statePIR1 = LOW;
int statePIR2 = LOW;
int statePIR3 = LOW;


void setup() {
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(pirPin1, INPUT);
  pinMode(pirPin2, INPUT);
  pinMode(pirPin3, INPUT);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);

  myServo.attach(servoPin);
  lcd.begin(16, 2);
  dht.begin();

  for (int i = 0; i <= 6; i++) {
  lcd.clear();
  lcd.setCursor(i, 0);
  lcd.print("Hallo");
  lcd.setCursor(1,1);
  lcd.print("SELAMAT DATANG");
  delay(1000);
  }
}

void loop() {
  // Baca jarak
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  jarak = pulseIn(echoPin, HIGH) / 2 / 29.1; // Konversi waktu ke jarak

  // Baca suhu dan kelembaban
  float h = dht.readHumidity();
  float t = dht.readTemperature();

   // Baca nilai sensor PIR
  int valPIR1 = digitalRead(pirPin1);
  int valPIR2 = digitalRead(pirPin2);
  int valPIR3 = digitalRead(pirPin3);

  // Kontrol servo
  if (jarak < batasJarak) {
    myServo.write(sudutMax);// Gerakkan servo ke sudut maksimum
    tone(buzzerPin, 1000); // Bunyikan buzzer
    delay(1000);
  } else {
    myServo.write(0); // Kembalikan servo ke posisi awal
    noTone(buzzerPin);
  }

  // Kontrol LED berdasarkan sensor PIR
  if (valPIR1 == HIGH || valPIR2 == HIGH || valPIR3 == HIGH) {
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, HIGH);
    tone(buzzerPin, 1000);
    myServo.write(sudutMax);
  } else {
    digitalWrite(ledPin1, LOW);
    digitalWrite(ledPin2, LOW);
    noTone(buzzerPin);
    myServo.write(0);
  }

  // Tampilkan data pada LCD
  lcd.clear();
  lcd.print("jarak: ");
  lcd.print(jarak);
  lcd.print("cm");
  lcd.setCursor(0, 1);
  lcd.print("Suhu: ");
  lcd.print(t);
  lcd.print("C");
  delay(1000);
}