DHT11 + DS18B20 + i2C 1602 LCD display

// https://www.youtube.com/@LeventeDaradici/videos
#include <DHT.h>
#include <LCD_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#define DHTPIN 7
#define ONE_WIRE_BUS 8
#define DHTTYPE DHT11
LCD_I2C lcd(0x27, 16, 2);
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

boolean AmGasitDHT11, AmGasitDS18B20 = false;

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  lcd.begin();
  lcd.backlight();
  Serial.println("Detectare senzor");
  lcd.setCursor(0, 0);
  lcd.print("DETECTARE DHT11");
  delay(500);
  lcd.setCursor(0, 1);
  lcd.print("DETECTARE DS18B20");
  delay(500);
  dht.begin();
  pinMode(13, OUTPUT);
  sensors.begin();
}

void loop()
    {
      delay(1000);
      digitalWrite(13,LOW);
      float h = dht.readHumidity();
      float t = dht.readTemperature();
      float f = dht.readTemperature(true);

      if (isnan(h) || isnan(t) || isnan(f))
         {
            Serial.println("Nu am gasit senzor DHT11!");
            AmGasitDHT11 = false;
            lcd.setCursor(0, 0);
            lcd.print("                 ");
            lcd.setCursor(2, 0);
            lcd.print("LIPSA DHT11!");
         } else
              {
                 lcd.setCursor(0, 0);
                 lcd.print("                 ");
                 lcd.setCursor(0, 0);
                 lcd.print("DHT11");
                 AmGasitDHT11 = true;
                 float hif = dht.computeHeatIndex(f, h);
                 float hic = dht.computeHeatIndex(t, h, false);
                 Serial.print("DHT11 Temperatura: ");
                 Serial.print(t,1);
                 Serial.println(F("°C "));
                 Serial.print("DHT11 Umiditate: ");
                 Serial.print(h,0);
                 Serial.println("%");
                 lcd.setCursor(6, 0);
                 lcd.print(t,1);
                 lcd.setCursor(10,0);
                 lcd.print((char)223);
                 lcd.setCursor(11,0);
                 lcd.print("C");
                 lcd.setCursor(13, 0);
                 lcd.print(h,0);
                 lcd.setCursor(15,0);
                 lcd.print("%");
              }
      delay(1000);
      digitalWrite(13,HIGH);
      sensors.requestTemperatures();
             float tempC = sensors.getTempCByIndex(0);
             if(tempC != DEVICE_DISCONNECTED_C)
                {
                   Serial.print("DS18B20 Temperatura ");
                   Serial.println(tempC);
                   lcd.setCursor(0, 1);
                   lcd.print("                 ");
                   lcd.setCursor(0,1);
                   lcd.print("DS18B20");
                   lcd.setCursor(10,1);
                   lcd.print(tempC,2);
                   lcd.setCursor(14,1);
                   lcd.print((char)223);
                   lcd.setCursor(15,1);
                   lcd.print("C");
                } else
                     {
                       Serial.println("Nu am gasit senzor DS18B20");
                       lcd.setCursor(0,1);
                       lcd.print("                 ");
                       lcd.setCursor(1,1);
                       lcd.print("LIPSA DS18B20");
                     }

    }