#include <DHT.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <Fonts/FreeSerif9pt7b.h>
#include <LiquidCrystal_I2C.h>
#include <Stepper.h>

#define dht_pin 2
#define led_merah 4
#define led_kuning 12
#define led_biru 13
#define buzzer 7
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define DHTTYPE DHT22
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
DHT dht(dht_pin, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); 

const int stepsPerRevolution = 200; 
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11); 

void setup() {
  Serial.begin(9600);
  dht.begin();
  delay(100);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  pinMode(buzzer, OUTPUT);
  pinMode(led_merah, OUTPUT);
  pinMode(led_kuning, OUTPUT);
  pinMode(led_biru, OUTPUT);
  lcd.init();
  lcd.backlight(); 
  myStepper.setSpeed(200);

}

void loop(){
  
  display.setFont(&FreeSerif9pt7b);
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 40);

  float suhu = dht.readTemperature();

  if (suhu <29) {
    digitalWrite(led_merah, LOW);
    digitalWrite(led_kuning, LOW);
    digitalWrite(led_biru, HIGH);
    display.println("SUHU RENDAH");
    display.display();
    lcd.setCursor(0, 0); 
    lcd.print("Suhu: "); 
    lcd.print(suhu); 
    lcd.print(" C"); 
    noTone(buzzer);

  }

  else if (suhu <=35 && suhu >=29){
    digitalWrite(led_merah, LOW);
    digitalWrite(led_kuning, HIGH);
    digitalWrite(led_biru, LOW);
    display.println("SUHU CUKUP");
    display.display();
    lcd.setCursor(0, 0); 
    lcd.print("Suhu: "); 
    lcd.print(suhu); 
    lcd.print(" C"); 
    noTone(buzzer);
    myStepper.step(25);

    
  }
  else if (suhu >35){
    digitalWrite(led_merah, HIGH);
    digitalWrite(led_kuning, LOW);
    digitalWrite(led_biru, LOW);
    display.println("SUHU PANAS");
    display.display();
    tone(buzzer, 1000); // Start beeping continuously
    lcd.setCursor(0, 0); 
    lcd.print("Suhu: "); 
    lcd.print(suhu); 
    lcd.print(" C"); 
    
    myStepper.step(stepsPerRevolution);
  }
  else {
    digitalWrite(led_merah, LOW);
    digitalWrite(led_kuning, LOW);
    digitalWrite(led_biru, LOW);
    display.println("    ");
    display.display();
    lcd.setCursor(0, 0); 
    lcd.print("Suhu: "); 
    lcd.print(suhu); 
    lcd.print(" C"); 
    noTone(buzzer);

  }
}