#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 8
#define DHTTYPE DHT22
DHT dht (DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() 
{
Serial.begin(9600);
Serial.println("Temperature Monitoring System");
lcd.begin(16, 2);
dht.begin();
}

void loop() {
float t = dht.readTemperature();
float h = dht.readHumidity();
delay(1000);
//Displays on LCD
lcd.setCursor(0,0);
lcd.println("Temp="); lcd.print(t); lcd.println("C");
lcd.setCursor(0,1);
lcd.println("Humidity="); lcd.print(h); lcd.println("%");
//Display on serial monitor screen
Serial.println("Temp= "); Serial.print(t); Serial.println(" C");
Serial.println("Humidity= "); Serial.print(h); Serial.println(" %");
}