#include <OneWire.h>
#include <DallasTemperature.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>


#define SCREEN_WIDTH 128 // OLED width,  in pixels
#define SCREEN_HEIGHT 64 // OLED height, in pixels

// Data wire is connected to pin 2 on the Arduino
#define ONE_WIRE_BUS 2

// create an OLED display object connected to I2C
Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

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


// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);

void setup() {
  Serial.begin(9600);

  // Start up the library
  sensors.begin();

  // initialize OLED display with I2C address 0x3C
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }

  delay(2000);         // wait two seconds for initializing
  oled.clearDisplay(); // clear display

  oled.setTextSize(1);         // set text size
  oled.setTextColor(WHITE);    // set text color
  oled.setCursor(0, 2);       // set position to display (x,y)
  oled.println("Robotronix"); // set text
  oled.display();              // display on OLED
}

void loop() {

    // call sensors.requestTemperatures() to issue a global temperature
  // request to all devices on the bus
  sensors.requestTemperatures();

  // Print the temperature in Celsius
  Serial.print("Temperature is: ");
  Serial.print(sensors.getTempCByIndex(0));
  Serial.println(" C");
  delay(1000);
}