#include <DHT.h>
#include <LiquidCrystal_I2C.h>

DHT dht(26, DHT22);
LiquidCrystal_I2C lcd(0x27,16,2);

#define blueled 4
#define yellowled 16
#define redled 17

void setup() {
dht.begin();
delay(2000);
lcd.init();
lcd.backlight();
Serial.begin(115200);
pinMode(blueled, OUTPUT);
pinMode(yellowled, OUTPUT);
pinMode(redled, OUTPUT);
}

void loop() {
  float temp = dht.readTemperature();
  int humidity = dht.readHumidity();

  lcd.setCursor(0,0);
  lcd.print("Temp: ");
  lcd.setCursor(6,0);
  lcd.print(temp);
  lcd.setCursor(12,0);
  lcd.print(" C ");
  lcd.setCursor(0,1);
  lcd.print("Humidity:");
  lcd.setCursor(10,1);
  lcd.print(humidity);
  lcd.setCursor(13,1);
  lcd.print("%");
  delay(2000);


  if(temp <= 29){
    digitalWrite(blueled, HIGH);
  }else{
    digitalWrite(blueled, LOW);
  }

  if(temp <= 32 && temp >= 29){
    digitalWrite(yellowled, HIGH);
  }else{
    digitalWrite(yellowled, LOW);
  }

  if(temp >= 32){
    digitalWrite(redled, HIGH);
  }else{
    digitalWrite(redled, LOW);
  }
}