// Progtam Prototype SmartHome
//Inisiasi & pengalamatan Dht
#include <DHT.h>
#define DHTTYPE DHT22
#define DHTPIN 2
#include <RTClib.h>
DHT dht (DHTPIN, DHTTYPE);

RTC_DS1307 RTC;
//Insialisasi servo
#include <Servo.h>
Servo myServo;
int pos = 90;

//Inisialisasi Sensor Ultrasonic
#define trigPin 4
#define echoPin 3

//Inisialisasi Relay
const int Pendingin = 5;
const int Pemanas = 8;
const int UV = 7;

// inisialisasi OLED
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <Fonts/FreeSerif9pt7b.h>
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  Serial.begin (9600);
   if (!RTC.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  RTC.adjust(DateTime(2024, 05, 11, 6, 9, 54));

if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(1000);
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(30, 20);
  // Display static text
  display.println("RTC");
  display.display();
  delay(1000);
  display.clearDisplay();

  myServo.attach(6);
  dht.begin();
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode (Pendingin, OUTPUT);
  pinMode (Pemanas, OUTPUT);
  pinMode (UV, OUTPUT);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
}
void loop() {
  DateTime now = RTC.now();
 
//looping dht
  float t = dht.readTemperature();

//Ultrasonik
  long duration, distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration * 0.034 / 2);

  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0, 0);
  display.print(now.day());
  display.print('/');
  display.print(now.month());
  display.print('/');
  display.print(now.year());

  display.setCursor(0, 10);
  if (now.hour() < 10)
  display.print('0');
  display.print(now.hour());
  display.print(':');
  if (now.minute() < 10)
  display.print('0');
  display.print(now.minute());
  display.print(':');
  if (now.second() < 10)
  display.print('0');
  display.print(now.second());
  
  display.setCursor (60, 0);
  display.print ("t = ");
  display.print (t);
  display.print((char)247);
  display.println("C");

  display.setCursor (30, 20);
  display.print ("Status Suhu :");

  display.setCursor (20, 45);
  display.print ("Status Machine :");

  display.setCursor(30, 30);
  display.println (digitalRead(Pendingin) == HIGH? "Overheat" : " Under Std");

  display.setCursor(40, 55);
  display.println (digitalRead(UV) == HIGH? "Processing" : "Ready");

   // Looping untuk stabilisasi Suhu stay di 30
  if (t > 30) {
    digitalWrite(Pendingin, HIGH);
    digitalWrite(Pemanas, LOW);
    delay (500);
  }
  if (t < 30) {
    digitalWrite(Pendingin, LOW);
    digitalWrite (Pemanas, HIGH);
    delay (500);
  }
  if (t == 30) {
    digitalWrite(Pendingin, LOW);
    digitalWrite(Pemanas, LOW);
    display.setCursor(50, 30);
    display.println("Normal");
    delay (500);
  }
  // looping spray
  if (distance <= 5) {
    myServo.write(180);
    delay(1000);
    myServo.write(90);
    delay(1000);
    digitalWrite(UV, HIGH);
    delay (500);
  }
  else {
    myServo.write(90);
    digitalWrite(UV, LOW);
    delay (500);
  }

  display.display();
  
delay(1000);

}