#include<LiquidCrystal_I2C.h>
LiquidCrystal_I2C  lcd(0x27 , 20 , 4 ) ; 
#include <DHT.h>
#define soil A0
DHT dht(4, DHT22);
#define light_pin A1
int soil_hum, light_signal;
float temperature, humidity;
void setup() {
  Serial.begin(9600);
  dht.begin();
  lcd.backlight() ; 
  // lcd.noBacklight() ; 
  lcd.init() ; 
}
void loop() {

  soil_hum = (1023 - analogRead(soil)) * 0.097;
  light_signal = (1023 - analogRead(light_pin)) * 0.097;
  temperature = dht.readTemperature();
  humidity = dht.readHumidity();
  Serial.print("Humidity :" + String(humidity));
  Serial.println("  Temperature :" + String(temperature));
  lcd.setCursor(0,0) ; 
  lcd.print("Temp :"+String(temperature)+" C") ;
  lcd.setCursor(0,1) ; 
  lcd.print("Hum :"+String(humidity)+" %") ; 
  lcd.setCursor(0,2) ; 
  lcd.print("Light :"+String(light_signal)+" %") ; 
  delay(50);
}