#include<ESP8266WIFI.h>
#include<Thingspeak.h>
WifiClient client;
long myChannelId="sweta";
const char myApiKey="galaxy";

 void setup()
 {
   pinMode(34,OUTPUT);
   pinMode(23,INPUT);
   Serial.begin(9600);
   Wifi.begin=("sweta","galaxy")
   {
     delay(2000);
     Serial.print("..");
   }
 }
 void loop()
 {
   digitalWrite(34,LOW);
   delay(1000);
   digitalWrite(34,HIGH);
    delay(1000);
   digitalWrite(34,LOW);
    delay(1000);
    int Duration=pulseIn(34,HIGH);
    int distance=(Duration*0.34)/2;
    Serial.print("Distance : ");
    Serial.print(distance);
    ThingSpeak.writeField(myChannelNumber,1,NAME,myWriteAPIKey);
   delay(100);
 }