#include <U8g2lib.h>
#include <Wire.h>
#include <DHT.h>

#define DHTData 2
DHT dht(DHTData, DHT22);

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, SCL, SDA, U8X8_PIN_NONE);

const char DEGREE_SYMBOL[] = { 0xB0, '\0' };

void setup() {

  u8g2.begin();
  u8g2.setFont(u8g2_font_helvR24_tf);
  u8g2.drawStr(10, 25, "Init...");
  u8g2.sendBuffer();

  dht.begin();
}

void loop() {

  float f = dht.readTemperature(true);
  float c = dht.readTemperature(false);
  int h = dht.readHumidity();

  u8g2.clearBuffer();

  u8g2.setCursor(10, 25);
  u8g2.print(c, 1);
  u8g2.print(DEGREE_SYMBOL);
  u8g2.println("C");

  u8g2.setCursor(10, 60);
  u8g2.print(h);
  u8g2.println("%"); 

  u8g2.sendBuffer();

  //delay(25);

}