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

#define ONE_WIRE_BUS 4  // Data wire
float tempC, tempF; // Temperature values in Celcius & Farenheit
// Setup a oneWire instance to 
// communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to 
// Dallas Temperature sensor 
DallasTemperature sensors(&oneWire);
// LCD address 0x27 for a 16x2 display
LiquidCrystal_I2C lcd(0x27,16,4);    

void setup(void) {
  lcd.init();               // Initialize the lcd 
  lcd.backlight();          // Turn On LCD backlight
 
  sensors.begin();          // Start up the library
}

void loop(void){ 
  // Call sensors.requestTemperatures() to issue a global temperature 
  // and Requests to all devices on the bus
  sensors.requestTemperatures(); 
  // Why "byIndex"? You can have more than one IC on the same bus. 
  // 0 refers to the first IC on the wire
  tempC = sensors.getTempCByIndex(0);
  lcd.setCursor(0,0); // Print on line 1 column 0
  lcd.print(tempC);
  lcd.print(" degC ");
  tempF = sensors.getTempFByIndex(0);
  lcd.setCursor(0,1);  // Print on line 2 column 0
  lcd.print(tempF);
  lcd.print(" degF ");
  delay(1000);
}