#include <LiquidCrystal_I2C.h>
#include "DHT.h"
LiquidCrystal_I2C lcd(0x27, 16, 2); // endereco I2C  0x27, 16 colunas e 2 linhas
int bot = 2;
int dhtP =15;

bool Lig = false;
bool Boom = false;

DHT dht(dhtP, DHT22);

void setup() {
  lcd.init(); // inicializa o lcd
  lcd.backlight(); //liga a luz de fundo do display
  Serial.begin(9600);
  dht.begin();
  pinMode(bot, INPUT);
}

void loop() {
  
  float h = dht.readHumidity();
 
  float t = dht.readTemperature();

  int botValue = digitalRead(bot);

  if(botValue == true){
  Lig = !Lig;
  while(botValue == 1){
 botValue = digitalRead(bot);
 
 }
}
if(Lig == true){

 if(Boom == false){
  lcd.clear();    
  lcd.setCursor(0,0);         
  lcd.print("Sejam Bem Vindos!:"); 
  delay(2000);            
 
 Boom = true;
 }

if(Boom == true){
  lcd.clear();             
  lcd.setCursor(1, 0);     
  lcd.print("Temp:");
  lcd.print(t);    
  lcd.print("C");
  lcd.setCursor(1, 1);     
  lcd.print("Hum:");  
  lcd.print(h);
  lcd.print("%");
  delay(2000);  
  }

  } else {
    lcd.clear();
    Boom = false;
    lcd.noBacklight();
  }
  }