#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// Pin definitions
#define ONE_WIRE_BUS 2
#define TRIG_PIN 9
#define ECHO_PIN 10

// Set up a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass oneWire reference to DallasTemperature library
DallasTemperature sensors(&oneWire);

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  // Start serial communication for debugging
  Serial.begin(9600);

  // Initialize the LCD
  lcd.begin(16, 2); // Menambahkan argumen jumlah kolom dan baris
  lcd.backlight();

  // Initialize the temperature sensor
  sensors.begin();

  // Initialize the pins for the ultrasonic sensor
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
}

void loop() {
  // Get the temperature
  sensors.requestTemperatures();
  float temperature = sensors.getTempCByIndex(0);

  // Get the distance
  long duration, distance;
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  duration = pulseIn(ECHO_PIN, HIGH);
  distance = duration * 0.034 / 2;

  // Display the results on the LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Level: ");
  lcd.print(distance);
  lcd.print(" cm");

  // Print the results to the Serial Monitor (for debugging)
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" C");

  Serial.print("Water Level: ");
  Serial.print(distance);
  Serial.println(" cm");

  // Wait a second before the next loop
  delay(1000);
}