#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <RTClib.h>
#include <AccelStepper.h>
#include <NewPing.h>

LiquidCrystal_I2C lcd(0x27, 20, 4); // Alamat I2C LCD 0x27, dengan 20 kolom dan 4 baris
RTC_DS1307 rtc;
AccelStepper stepper(1, 8, 9); // Inisialisasi stepper motor pada pin 8 (STEP) dan 9 (DIR)
NewPing sonar(2, 3); // Inisialisasi ultrasonic sensor pada pin 2 (TRIG) dan 3 (ECHO)

const int buzzerPin = 11;
const int pirPin = 7;
const int potPin = A0;

float speed = 0;
float volume = 0;
bool alarm = false;

void setup() {
  lcd.begin(20, 4); // Inisialisasi LCD dengan 20 kolom dan 4 baris
  lcd.backlight();

  stepper.setMaxSpeed(1000); // Set maksimum kecepatan stepper motor (contoh)

  pinMode(buzzerPin, OUTPUT);
  pinMode(pirPin, INPUT);

  Serial.begin(9600);

  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  if (!rtc.isrunning()) {
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
}

void loop() {
  DateTime now = rtc.now();

  int potValue = analogRead(potPin);
  speed = potValue / 1023.0 * 100; // Kecepatan dalam persen

  stepper.setSpeed(speed); // Set kecepatan stepper motor berdasarkan nilai potensiometer

  unsigned int distance = sonar.ping_cm(); // Mengukur jarak dari ultrasonic sensor dalam cm
  volume = distance / 10.0; // Konversi jarak menjadi volume (contoh)

  if (digitalRead(pirPin) == HIGH) {
    alarm = true;
    digitalWrite(buzzerPin, HIGH);
  } else {
    alarm = false;
    digitalWrite(buzzerPin, LOW);
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Speed: ");
  lcd.print(speed);
  lcd.print("%");
  lcd.setCursor(0, 1);
  lcd.print("Volume: ");
  lcd.print(volume);
  lcd.print(" ml");
  lcd.setCursor(0, 2);
  lcd.print("Time: ");
  lcd.print(now.hour());
  lcd.print(":");
  lcd.print(now.minute());
  lcd.print(":");
  lcd.print(now.second());
  lcd.setCursor(0, 3);
  if (alarm) {
    lcd.print("ALARM!!!");
  } else {
    lcd.print("System OK");
  }

  delay(500);
}