#include <OneWire.h>
#include <DallasTemperature.h>
//display
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

Adafruit_SSD1306 display = Adafruit_SSD1306(128, 64, &Wire);
#define SENSOR_PIN  14 // ESP32 pin GPIO14 connected to DS18B20 sensor's DATA pin

OneWire oneWire(SENSOR_PIN);
DallasTemperature DS18B20(&oneWire);

float tempC; // temperature in Celsius


void setup() {
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);

    // Display the splash screen (we're legally required to do so)
    display.display();
   

   
    display.clearDisplay();
   

  Serial.begin(9600); // initialize serial
  DS18B20.begin();    // initialize the DS18B20 sensor
}

void loop() {
  DS18B20.requestTemperatures();       // send the command to get temperatures
  tempC = DS18B20.getTempCByIndex(0);  // read temperature in °C

  Serial.println(tempC); 
display.clearDisplay();
  display.setTextSize(3);             
  display.setTextColor(WHITE);        
  display.setCursor(0,20);             
  display.println(tempC);
  display.display();
    
  
  delay(1000);
}