#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTTYPE DHT22
#define DHTPIN 9
DHT dht (DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
int delay1 = 200;
int delay2 = 2000;
int delay3 = 1000;

byte a_tilde[8] = {
  0B00010,
  0B00100,
  0B01110,
  0B00001,
  0B01111,
  0B10001,
  0B01111,
  0B00000,
};

byte e_tilde[8] = {
  0B00010,
  0B00100,
  0B01110,
  0B10001,
  0B11111,
  0B10000,
  0B01110,
  0B00000,
};

byte i_tilde[8] = {
  0B00010,
  0B00100,
  0B01100,
  0B00100,
  0B00100,
  0B00100,
  0B01110,
  0B00000,
};

byte o_tilde[8] = {
  0B00010,
  0B00100,
  0B01110,
  0B10001,
  0B10001,
  0B10001,
  0B01110,
  0B00000,
};

byte u_tilde[8] = {
  0B00010,
  0B00100,
  0B10001,
  0B10001,
  0B10001,
  0B10011,
  0B01101,
  0B00000,
};

byte ene[8] = {
  0B01110,
  0B00000,
  0B10110,
  0B11001,
  0B10001,
  0B10001,
  0B10001,
  0B00000,
};

  byte grado[8] = {
    0B01100,
    0B10010,
    0B10010,
    0B01100,
    0B00000,
    0B00000,
    0B00000,
    0B00000,
  };

void setup() {
  Serial.begin(115200);
  dht.begin();
  pinMode(4, OUTPUT);
  pinMode(2, OUTPUT);
  lcd.init();
  lcd.backlight();
  lcd.createChar(0, a_tilde);
  lcd.createChar(1, e_tilde);
  lcd.createChar(2, i_tilde);
  lcd.createChar(3, o_tilde);
  lcd.createChar(4, u_tilde);
  lcd.createChar(5, ene);
  lcd.createChar(6, grado);
  lcd.setCursor(5,0);
  lcd.print("MATERIA");
  lcd.setCursor(6,1);
  lcd.print("Stem");
  delay(delay2);

  for (int a = 0; a <= 12; a++ ){
    lcd.scrollDisplayLeft();
    delay(delay1);
  }
  lcd.clear();
  delay(delay3);


  lcd.setCursor(5,0);
  lcd.print("CURSO");
  lcd.setCursor(7,1);
  lcd.print("7A");
  delay(delay2);
  for (int a = 0; a <= 10; a++ ){
    lcd.scrollDisplayLeft();
    delay(delay1);
  }
  lcd.clear();
  delay(delay3);


  lcd.setCursor(3,0);
  lcd.print("CREADO POR");
  lcd.setCursor(0,1);
  lcd.print("Andres Felipe Veloza Ca as");
  lcd.setCursor(23, 1);
  lcd.write(5);
  delay(delay2);
  for (int a = 0; a <= 20; a++ ){
    lcd.scrollDisplayLeft();
    delay(delay1);
  }
  lcd.clear();
  delay(delay3);


  lcd.setCursor(2,0);
  lcd.print("ENTREGADO A");
  lcd.setCursor(0,1);
  lcd.print("Miguel Angel D az Gonz lez");
  lcd.setCursor(14, 1);
  lcd.write(2);
  lcd.setCursor(22, 1);
  lcd.write(0);
  delay(delay2);
  for (int a = 0; a <= 20; a++ ){
    lcd.scrollDisplayLeft();
    delay(delay1);
  }
  lcd.clear();
  delay(delay3);


}

void loop() {
  delay(2000);
  float humedad = dht.readHumidity();
  float temperatura = dht.readTemperature();

  if (isnan(humedad) || isnan(temperatura)){
    Serial.println("Error al leer el sensor DHT-11!!");
    return;
  }

  if (temperatura < 35){
    digitalWrite(4, HIGH);
    digitalWrite(2, HIGH);
  }

  if (temperatura >= 35){
    digitalWrite(4, LOW);
    digitalWrite(2, LOW);
  }


  lcd.setCursor(0,0);
  lcd.print("T  C :");
  lcd.setCursor(1,0);
  lcd.write(6);
  lcd.setCursor(8,0);
  lcd.print(temperatura);

  lcd.setCursor(0,1);
  lcd.print("H  :");
  lcd.setCursor(1,1);
  lcd.write(6);
  lcd.setCursor(6,1);
  lcd.print(humedad);
  delay(delay2);

  lcd.clear();
}