#include <Wire.h>
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <EasyUltrasonic.h>
#include "DHT.h"

#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 64

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

double distance;
float temp;
float hum;


#define DHTPIN 13
#define DHTTYPE DHT22

#define TRIGPIN 15 
#define ECHOPIN 2

EasyUltrasonic ultrasonic; 

DHT dht(DHTPIN, DHTTYPE);  

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

  ultrasonic.attach(TRIGPIN, ECHOPIN); 

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

  display.clearDisplay();

  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);

  display.println("Distance:");

  display.display();

  delay(20);

  dht.begin();
}

void loop() {
  
  temp = dht.readTemperature();
  hum = dht.readHumidity();

  display.clearDisplay();

  display.setCursor(1, 1);

  display.println("Distance:");


  distance = ultrasonic.getPreciseDistanceCM(temp, hum); 

  display.setCursor(1, 32);

  
  display.println(distance);

  display.setCursor(96, 32);

  
  display.println("cm");

  display.display();


  delay(100);
}