//Include libraries
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>

// Data wire is plugged into pin 2 on the Arduino
#define ONE_WIRE_BUS 2
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);

char array1[]=" SunFounder               "; //the string to print on the LCD
char array2[]="hello, world!             "; //the string to print on the LCD
int tim = 500; //the value of delay time
// initialize the library with the numbers of the interface pins
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display

const int buzzer = 9; //buzzer to arduino pin 9

void setup(void)
{
  lcd.init(); //initialize the lcd
  lcd.backlight(); //open the backlight

  pinMode (13, OUTPUT); // For laser

  pinMode(buzzer, OUTPUT); // Set buzzer - pin 9 as an output

  pinMode (13, OUTPUT); // For 7 color flash

  Serial.begin(9600); //Begin serial communication
  Serial.println("Arduino Digital Temperature // Serial Monitor Version"); //Print a message
  sensors.begin();

}

void loop(void)
{
  /************************* Temperature Section *****************************/
  // Send the command to get temperatures
  sensors.requestTemperatures();
  Serial.print("Temperature is: ");
  Serial.println(sensors.getTempCByIndex(0)); //Why "byIndex"? You can have more than one IC on the same bus. 0 refers to the first IC on the wire
  //Update value every 1 sec.
  delay(1000);

  /************ I2C and LCD chunk ***************************************/
  // This is inspired from the the Lesson 1 Display by I2C LCD 1602 on SunFounder.com

  lcd.setCursor(15,0); // set the cursor to column 15, line 0
  for (int positionCounter1 = 0; positionCounter1 < 26; positionCounter1++)
  {
    lcd.scrollDisplayLeft(); //Scrolls the contents of the display one space to the left.
    lcd.print(array1[positionCounter1]); // Print a message to the LCD.
    delay(tim); //wait for 250 microseconds
  }
  lcd.clear(); //Clears the LCD screen and positions the cursor in the upper-left  corner.
  lcd.setCursor(15,1); // set the cursor to column 15, line 1
  for (int positionCounter = 0; positionCounter < 26; positionCounter++)
  {
    lcd.scrollDisplayLeft(); //Scrolls the contents of the display one space to the left.
    lcd.print(array2[positionCounter]); // Print a message to the LCD.
    delay(tim); //wait for 250 microseconds
  }
  lcd.clear(); //Clears the LCD screen and positions the cursor in the upper-left corner.

  /************ Laser ***************************************/
  digitalWrite (13, HIGH); // open the laser head
  delay (1000); // delay one second
  digitalWrite (13, LOW); // turn off the laser head
  delay (1000); // delay one second

  /************ Buzzer ***************************************/
  tone(buzzer, 1000); // Send 1KHz sound signal...
  delay(1000);        // ...for 1 sec
  noTone(buzzer);     // Stop sound...
  delay(1000);        // ...for 1sec

  /************ 7 Color Flash ******************************/
  digitalWrite (13, HIGH); // set the LED on
  delay (2000); // wait for a second
  digitalWrite (13, LOW); // set the LED off
  delay (2000); // wait for a second
}