int distance;
#include <WiFi.h>;
char ssid[]="WiFi-GUEST";
char pass[]="";
WiFiClient client;

void setup() {
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
    pinMode(16,INPUT);
      pinMode(17,OUTPUT);
      }

      void loop() {
        if(WiFi.status()!=WL_CONNECTED)
  {
    Serial.print ("Attempting to connect");
    while(WiFi.status()!=WL_CONNECTED)
    {
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(5000);
    }
    Serial.println("\n connected");
  }
  delay(10);
        digitalWrite(17,HIGH);
          delay(100);
            digitalWrite(17, LOW);
              distance = pulseIn(16,HIGH);
                Serial.println("signal recived");
                  int c =( distance*0.040/2);
                  Serial.println(c);
                  }