#include <DHT.h>
#define TRIG_PIN 18
#define ECHO_PIN 5
float duration_us,distance_cm;
DHT dht(4,DHT22);
float Temp ;
float Humi ;

void setup() {
  Serial.begin(115200);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(14 , OUTPUT);
}
void loop() {
  Temp = dht.readTemperature();
  Humi = dht.readHumidity();

  Serial.print("Temperature =");
  Serial.println(Humi);
   Serial.print("Humidity =");
  Serial.println(Humi);

  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  duration_us = pulseIn(ECHO_PIN,HIGH);
  distance_cm = 0.017*duration_us;

  Serial.print("distance_Ultra =");
  Serial.println(distance_cm);

  if(distance_cm <= 150){
    digitalWrite(14, HIGH);
  }
  else{
    digitalWrite(14, LOW);
  }

  delay(1000);
}