#include "DHT.h"
#include <U8g2lib.h>
#define DHT11PIN 16

#include <Wire.h>

DHT dht(DHT11PIN, DHT11);
U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ 22, /* data=*/ 21, /* reset=*/ U8X8_PIN_NONE);   // All Boards without Reset of the Display

void setup()
{
  Serial.begin(115200);
/* Start the DHT11 Sensor */ 
  dht.begin();
  u8g2.begin();
  
//Welcome Sreen
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_logisoso30_tf);
  u8g2.drawStr(0,50,"WELCOME");
  u8g2.sendBuffer();	
  delay(3000);
}

void loop()
{
  // unsigned long currentmillis = millis();

      float humi = dht.readHumidity();
      float temp = dht.readTemperature();
      
    u8g2.clearBuffer();	
    u8g2.drawLine (0, 0, 127, 0); //top
    u8g2.drawLine (0, 0, 0, 64); //left
    u8g2.drawLine (0, 63, 127, 63);// bottom
    u8g2.drawLine (0, 46, 127, 46); // line above alti
    u8g2.drawLine (127, 0, 127, 63); //right
    u8g2.drawLine (64, 0, 64, 46); // center


  // u8g2.drawXBMP(5, 20, 128/8, 64, epd_bitmap_temp);
  u8g2.setFont(u8g2_font_ncenB08_tr);	// choose a suitable font
    u8g2.drawStr(5,11,"Temp (C)");
    u8g2.drawStr(70,11,"Humidity");
    
  u8g2.setFont(u8g2_font_crox2cb_tf);
    u8g2.drawStr(5,60,"Alti :"); //BMP280 to be added later for altitude reading
    u8g2.drawStr(65,60,"9999m");

    char hu[4];
    char tmp[4]; 
    itoa(temp,tmp,10);
    itoa(humi,hu,10);

    u8g2.setFont(u8g2_font_logisoso26_tn);
    u8g2.drawStr(10,42,tmp);
    u8g2.drawStr(80,42,hu);	
    


  Serial.print("Temperature: ");
  Serial.print(temp);
  Serial.println("ºC ");
  Serial.print("Humidity: ");
  Serial.println(humi);
  u8g2.sendBuffer();	
  delay(1000);
  }