#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27,16,2);
#include "DHTesp.h"
#define trigPin 18
#define echoPin 19
const int DHT_PIN = 15;
#define ledPin 21
DHTesp dhtSensor;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN,DHTesp::DHT22);
  pinMode(trigPin,OUTPUT);
  pinMode(echoPin,INPUT);
  pinMode(ledPin,OUTPUT);
  LCD.init();
  LCD.backlight();

}

void loop() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp:" + String(data.temperature,2)+"c");
  Serial.println("Humidity:" + String(data.humidity,1)+"%");
  Serial.println("---");
  
  long duration ,distance;
  digitalWrite(trigPin,LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin,HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin,LOW);
  duration = pulseIn(echoPin,HIGH);
  distance = duration / 58.2;
  if(distance <= 20.00){
    digitalWrite(ledPin, HIGH);
  }else{digitalWrite(ledPin,LOW);
  }
LCD.setCursor(0,0);
LCD.print("Temp:" + String(data.temperature,2)+"c");
LCD.setCursor(0,1);
LCD.print("Humidity:" + String(data.humidity,1)+"%");

  delay(3000);
}