#include <LCD_I2C.h>
#include <DHT.h>

#define DHT22_PIN 5

DHT dht(DHT22_PIN, DHT22);
LCD_I2C lcd(0x27, 16, 2);

void setup() { 
    lcd.begin();
    lcd.backlight();
    dht.begin();
    pinMode(13, OUTPUT);
    digitalWrite(13, HIGH);
}
 
void loop() {
    lcd.setCursor(0,0);
    lcd.print("Time: ");
    int secondsPassed = millis() / 1000;
    int minutesPassed = secondsPassed / 60;
    int secondsDisplay = secondsPassed % 60;
    if (minutesPassed < 10) {
        lcd.print("0");
    }
    lcd.print(minutesPassed);
    lcd.print(":");
    if (secondsDisplay < 10) {
        lcd.print("0");
    }
    lcd.print(secondsDisplay);

    lcd.setCursor(0,1);
    lcd.print("Temp: ");
    float temp = dht.readTemperature();
    lcd.print(temp);
    lcd.print("          ");
    delay(1000); // considered best practice in a simple sketch.
}