#include<ESP8266WiFi.h>
#include<WiFiClient.h>
#include<ESP8266HTTPClient.h>
#include <ArduinoJson.h>
String URL="http://api.thingspeak.com/update?api_key=NBPKMPZ5E4PL8LGV&field1=100";
const int trig=5;
const int echo=4;

long duration=0;
int distance=0;
void setup() {
 
  Serial.begin(9600);
  WiFi.disconnect();
  delay(2000);
  Serial.print("Start connection");
  WiFi.begin("Data","Send-Data"); //ssid & password
  while((!(WiFi.status()== WL_CONNECTED))){
      delay(200);
      Serial.print("..");
    }
  Serial.println("Connected");
  pinMode(D0,OUTPUT);
  pinMode(trig, OUTPUT  );
pinMode(echo,INPUT );
}
void loop() {
  
  WiFiClient client;
  HTTPClient http;

digitalWrite(trig,LOW);
delayMicroseconds(2);
digitalWrite(trig,HIGH);
delayMicroseconds(10);
duration=pulseIn(echo,HIGH);
distance=duration*0.034/2;
Serial.println(distance);

String mewUrl=URL+String(distance);
  http.begin(client,newUrl);
  int responsecode=http.GET();
  String data=http.getString();
 Serial.println(data);
  http.end();
delay(15000);
}