#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define WIDTH 128
#define  HEIGHT 64
#define  RESET -1

#include <DHT.h>
#define DHTPin 8
#define DHTTYPE DHT22
float temp, humi;

Adafruit_SSD1306 OLED(WIDTH, HEIGHT, &Wire, RESET);
DHT dht(DHTPin,DHTTYPE);


void setup() {
  OLED.begin(SSD1306_SWITCHCAPVCC,0x3C);
  OLED.clearDisplay();
  dht.begin();
}

void loop (){
  DataTemp();
  OLED.display();
  delay(3000);

   DataHumi();
   OLED.display();
   delay(3000);
   
}

void DataTemp(){
  temp = dht.readTemperature();
  
  if (isnan(temp)) {
   Serial.println('DHT Senor Temperature Failed !');
    delay(200);
  }
  OLED.setTextColor(WHITE, BLACK);
  OLED.setTextSize(1);
  OLED.setCursor(25,5);
  OLED.print("Temperature");
  OLED.setTextSize(2);
  OLED.setCursor(20,25);
  OLED.print(temp);
  OLED.drawCircle(88, 25, 3, WHITE);
  OLED.setCursor(95,25);
  OLED.print('C');
}
void DataHumi(){
  humi = dht.readHumidity();
  
  if (isnan(humi)) {
   Serial.print('DHT Senor Humidity Failed !');
    delay(200);
  }
 
  OLED.setTextColor(WHITE, BLACK);
  OLED.setTextSize(1);
  OLED.setCursor(30,5);
  OLED.print("Humidty");
  OLED.setTextSize(2);
  OLED.setCursor(20,25);
  OLED.print(humi);
  OLED.print('%RH');
}