#include <Wire.h>
#include <Arduino.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "Adafruit_SHT31.h"
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET     -1
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3C for 128x64
#define LOGO_HEIGHT   16
#define LOGO_WIDTH    16
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
bool enableHeater = false;
Adafruit_SHT31 sht31 = Adafruit_SHT31();

const unsigned char termo [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x86, 0x00, 0x00, 0x03, 0xcf, 0x00, 0x00, 
  0x06, 0xc9, 0x38, 0x00, 0x06, 0x4f, 0x70, 0x00, 0x06, 0x46, 0x40, 0x00, 0x06, 0x40, 0xc0, 0x00, 
  0x06, 0x40, 0xc0, 0x00, 0x06, 0x40, 0x60, 0x00, 0x06, 0x40, 0x38, 0x00, 0x06, 0x40, 0x18, 0x00, 
  0x02, 0x40, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 
  0x06, 0x60, 0x00, 0x00, 0x0c, 0x20, 0x00, 0x00, 0x0c, 0x30, 0x00, 0x00, 0x0c, 0x30, 0x00, 0x00, 
  0x0c, 0x60, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00
};
const unsigned char humi [] PROGMEM = {
  0x00, 0x60, 0x00, 0x00, 0x60, 0x00, 0x00, 0xf0, 0x00, 0x01, 0xf8, 0x00, 0x03, 0xfc, 0x00, 0x03, 
  0xfc, 0x00, 0x07, 0xfe, 0x00, 0x0f, 0xff, 0x00, 0x0e, 0x3f, 0x00, 0x1c, 0xb3, 0x80, 0x1e, 0x27, 
  0x80, 0x1f, 0xcf, 0x80, 0x3f, 0x9f, 0xc0, 0x1f, 0x3f, 0x80, 0x1e, 0x47, 0x80, 0x1c, 0xd3, 0x80, 
  0x0f, 0xc7, 0x00, 0x0f, 0xff, 0x00, 0x03, 0xfc, 0x00, 0x01, 0xf8, 0x00
};
const unsigned char HAPPY [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x01, 0xff, 0xc0, 0x00, 0x03, 0xff, 0xe0, 0x00, 
  0x07, 0xff, 0xf0, 0x00, 0x0f, 0xff, 0xf8, 0x00, 0x1f, 0xff, 0xfc, 0x00, 0x3f, 0xff, 0xfe, 0x00, 
  0x3e, 0x3e, 0x3e, 0x00, 0x3c, 0x1c, 0x1e, 0x00, 0x7f, 0xff, 0xff, 0x00, 0x7f, 0xff, 0xff, 0x00, 
  0x7f, 0xff, 0xff, 0x00, 0x7c, 0x00, 0x1f, 0x00, 0x7c, 0x00, 0x1f, 0x00, 0x3c, 0x00, 0x1e, 0x00, 
  0x3e, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x1f, 0x00, 0x7c, 0x00, 0x0f, 0xc1, 0xf8, 0x00, 
  0x07, 0xff, 0xf0, 0x00, 0x03, 0xff, 0xe0, 0x00, 0x01, 0xff, 0xc0, 0x00, 0x00, 0x3e, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00
};
const unsigned char SHR [] PROGMEM = {
  0x00, 0x1c, 0x00, 0x00, 0x00, 0xff, 0x80, 0x00, 0x03, 0xff, 0xe0, 0x00, 0x07, 0xff, 0xf0, 0x00, 
  0x0f, 0xff, 0xf8, 0x00, 0x1f, 0xff, 0xfc, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x3f, 0x7f, 0x7e, 0x00, 
  0x7e, 0x7f, 0x3f, 0x00, 0x7d, 0xdd, 0xdf, 0x00, 0x7c, 0x1c, 0x1f, 0x00, 0xfc, 0x3e, 0x1f, 0x80, 
  0xff, 0xff, 0xff, 0x80, 0xff, 0xff, 0xff, 0x80, 0x7f, 0xff, 0xff, 0x00, 0x7f, 0xff, 0xff, 0x00, 
  0x7f, 0x00, 0x7f, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x1f, 0xff, 0xfc, 0x00, 
  0x0f, 0xff, 0xf8, 0x00, 0x07, 0xff, 0xf0, 0x00, 0x03, 0xff, 0xe0, 0x00, 0x00, 0xff, 0x80, 0x00, 
  0x00, 0x1c, 0x00, 0x00
};
const unsigned char SAD [] PROGMEM = {
  0x00, 0x7f, 0x00, 0x00, 0x01, 0xff, 0xc0, 0x00, 0x07, 0xff, 0xf0, 0x00, 0x0f, 0xff, 0xf8, 0x00, 
  0x1f, 0xff, 0xfc, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x7f, 0xff, 0xff, 0x00, 
  0x7f, 0xff, 0xff, 0x00, 0xfe, 0x7f, 0x3f, 0x80, 0xfe, 0xff, 0xbf, 0x80, 0xff, 0xff, 0xff, 0x80, 
  0xff, 0xff, 0xff, 0x80, 0xff, 0xff, 0xff, 0x80, 0xff, 0xc1, 0xff, 0x80, 0xff, 0x00, 0x7f, 0x80, 
  0x7e, 0x3e, 0x3f, 0x00, 0x7e, 0x7f, 0x3f, 0x00, 0x3f, 0xff, 0xfe, 0x00, 0x3f, 0xff, 0xfe, 0x00, 
  0x1f, 0xff, 0xfc, 0x00, 0x0f, 0xff, 0xf8, 0x00, 0x07, 0xff, 0xf0, 0x00, 0x01, 0xff, 0xc0, 0x00, 
  0x00, 0x7f, 0x00, 0x00
};

void setup() {
  Serial.begin(115200);
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  while (!Serial)
    delay(10);     

  Serial.println("SHT31 test");
  if (!sht31.begin(0x44)) { // 0x45 for alternate i2c addr    
  Serial.println("Couldn't find SHT31");
    while (1) delay(1);
  }

  Serial.print("Heater Enabled State: ");
  if (sht31.isHeaterEnabled())
    Serial.println("ENABLED");
  else
    Serial.println("DISABLED");
  display.clearDisplay();
  display.drawBitmap(25,0,termo,25,25,WHITE);
  display.drawBitmap(70,0,humi,20,20,WHITE);
  display.display();
}

void loop() {
  display_sht31();
  delay(2000);
}
void display_sht31() {
  
  float t = sht31.readTemperature();
  float h = sht31.readHumidity();

  if (! isnan(t)) {  // check if 'is not a number'
    Serial.print("Temp *C = "); Serial.print(t); Serial.print("\t\t");
  } else { 
    Serial.println("Failed to read temperature");
  }
  
  if (! isnan(h)) {  // check if 'is not a number'
    Serial.print("Hum. % = "); Serial.println(h);
  } else { 
    Serial.println("Failed to read humidity");
  }
  delay(1000);

  display.setTextColor(WHITE);
  display.setCursor(30, 8);
  display.print(t);
  display.drawBitmap(5,0,termo,25,25,WHITE);
  display.setTextColor(WHITE);
  display.setCursor(85, 8);
  display.print(h);
  display.drawBitmap(65,0,humi,20,20,WHITE);
  display.display();
  delay(1000);
  display.clearDisplay();

  if (t > 25.99 & t < 28.99) {
    display.drawBitmap(46,20,HAPPY,25,25,WHITE);
    display.display();
    delay(5000);
    display.clearDisplay();

  }
  if (t < 26) {
    display.drawBitmap(46,20,SHR,25,25,WHITE);
    display.display();
    delay(5000);
    display.clearDisplay();

  }
  if (t > 28) {
    display.drawBitmap(46,20,SAD,25,25,WHITE);
    display.display();
    delay(5000);
    display.clearDisplay();
    }
  }