#include <DHT.h>
#define DHTPIN 2          // DHT22 data pin connected to digital pin 2
#define DHTTYPE DHT22     // Sensor type
DHT dht(DHTPIN, DHTTYPE);
const int trigpin = 9;
const int echopin = 10;
long duration;
float distance ;
void setup() {
  // put your setup code here, to run once:
  pinMode(trigpin,OUTPUT);
  pinMode(echopin, INPUT);
     dht.begin();
    Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(trigpin , HIGH);
//end a 10 µs HIGH pulse to trigger measurement
delay(10000);
//delayMicroseconds(2);
//digitalWrite(trigpin,HIGH);
//delayMicroseconds(2);
digitalWrite(trigpin, LOW);
//delayMicroseconds(1);
duration= pulseIn(echopin , HIGH);
distance=duration * 0.034/2;
Serial.print("Distance : ");
Serial.print(distance);
Serial.println(" cm");
delay(5000);
float humidity = dht.readHumidity();
float temperature = dht.readTemperature(); 
if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT22 sensor!");
  } else {
    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.print(" °C  |  Humidity: ");
    Serial.print(humidity);
    Serial.println(" %");
  }
}