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


int chk;
float hum;  
float temp; 

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int muxSIG = 7;
const int muxS0 = 2;
const int muxS1 = 3;
const int muxS2 = 4;
const int muxS3 = 5;

#define DHTPIN 7     
#define DHTTYPE DHT22   
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  pinMode(muxSIG, INPUT);
  pinMode(muxS0, OUTPUT);
  pinMode(muxS1, OUTPUT);
  pinMode(muxS2, OUTPUT);
  pinMode(muxS3, OUTPUT);
  
  lcd.begin(16, 2);
  lcd.setBacklight(HIGH);
  dht.begin();
}

void loop() {

  digitalWrite(muxS0,0);
  digitalWrite(muxS1,0);
  digitalWrite(muxS2,0);
  digitalWrite(muxS3,0);
  SensorRead();

  digitalWrite(muxS0,0);
  digitalWrite(muxS1,0);
  digitalWrite(muxS2,0);
  digitalWrite(muxS3,1);
  SensorRead();
  digitalWrite(muxS0,0);
  digitalWrite(muxS1,0);
  digitalWrite(muxS2,1);
  digitalWrite(muxS3,0);
  SensorRead();  

}
int SensorRead(){
    hum = dht.readHumidity();
    temp= dht.readTemperature();
    lcd.setCursor(0,0);
    lcd.print("Humidity: ");
    lcd.print(hum);
    lcd.print(" %");
    lcd.setCursor(0,1);
    lcd.print("Temp: ");
    lcd.print(temp);
    lcd.println(" C");
    delay(10000);
    lcd.clear();
   
}