/*****
Proyek Arduino dengan Simulator Wokwi
Judul     : Sensor Suhu dengan DS 18B20 dan LCD I2C
Deskripsi : Mengukur suhu rungan dengan sensor DS18B20 yang 
            ditampilkan pada LCD I2C
Dimodifikasi oleh : Yosep Prasetya Budi
Terakhir diedit : 27-08-2024	15:05
*****/

/* DS18B20 1-Wire digital temperature sensor with 
Arduino example code. More info: https://www.makerguides.com */

#include <LiquidCrystal_I2C.h>
#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

#include "OneWire.h"
#include "DallasTemperature.h"

// Define to which pin of the Arduino the 1-Wire bus is connected:
#define ONE_WIRE_BUS 7

// initialize the library with the numbers of the interface pins
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

// Create a new instance of the oneWire class to communicate with any OneWire device:
OneWire oneWire(ONE_WIRE_BUS);

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

void setup() {
  // Begin serial communication at a baud rate of 9600:
  Serial.begin(9600);
  // Start up the library:
  sensors.begin();
  // set up the LCD's number of rows and columns:
  lcd.begin(16, 2);
  lcd.clear(); // start with a blank screen
  lcd.setCursor(0,0); // set cursor to column 0, row 0 (the first row)
  lcd.print("ELECTRICAL GEN Z"); // change this text to whatever you like. keep it clean.
  lcd.setCursor(0,1); // set cursor to column 0, row 1
  lcd.print("SMKN KRANGPUCUNG");
  delay(3000);
}
void loop()
{
    // Send the command for all devices on the bus to perform a temperature conversion:
  sensors.requestTemperatures();

  // Fetch the temperature in degrees Celsius for device index:
  float tempC = sensors.getTempCByIndex(0); // the index 0 refers to the first device
  // Fetch the temperature in degrees Fahrenheit for device index:
  float tempF = sensors.getTempFByIndex(0);

  // Print the temperature in Celsius in the Serial Monitor:
  Serial.print("Temperature: ");
  Serial.print(tempC);
  Serial.print(" \xC2\xB0"); // shows degree symbol
  Serial.print("C  |  ");

  // Print the temperature in Fahrenheit
  Serial.print(tempF);
  Serial.print(" \xC2\xB0"); // shows degree symbol
  Serial.println("F");
  
  // Print temperatur di LCD
  lcd.setCursor(0,1); // set cursor to column 0, row 1
  lcd.print("Temp : ");
  lcd.setCursor(7,1); // set cursor to column 7, row 1
  lcd.print(tempC);
  lcd.setCursor(12,1); // set cursor to column 7, row 1
  lcd.print(" \337C "); // shows degree symbol dan C

  // Wait 1 second:
  delay(1000);
}