//ETECAF
//SISTEMAS EMBARCADOS 3
//SEM3 – 2022
//Raul Santos da Silva
//RM: 35225
#include <dht.h>
#define dataPin 2 
dht DHT; 
#include <Wire.h>
#include <LiquidCrystal_I2C.h> 
LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
pinMode(4, OUTPUT); 
pinMode(5, OUTPUT); 
lcd.begin(16,2); 
lcd.setCursor(2, 0); 
lcd.print("ETEC-AF  SEM3"); 
lcd.setCursor(0,1); 
lcd.print("Raul Santos da Silva"); 
delay(500); 
  for(int St1 = 0; St1 < 20; St1++){  
   lcd.scrollDisplayLeft(); 
   delay(50); 
}
 delay(300); 
 lcd.clear(); 
}
void loop() {
  int ler22 = DHT.read22(dataPin); 
  float t = DHT.temperature; 
  float h = DHT.humidity; 
  lcd.setCursor(2,0); 
  lcd.print("Temp. = "); 
  lcd.print(t); 
  lcd.print(" "); 
  lcd.setCursor(15,0); 
  lcd.print("C"); 
  if(t > 40){ 
    digitalWrite(4, HIGH); 
  }
  else {
    digitalWrite(4, LOW); 
  }
  lcd.setCursor(0,1); 
  lcd.print("Humid. = "); 
  lcd.print(h); 
  lcd.print(" ");
  lcd.setCursor(15,1); 
  lcd.print("%"); 
  if(h < 17){  
    digitalWrite(5, HIGH); 
  }
  else { 
    digitalWrite(5, LOW); 
  }
}