DHT11 ThingSpeak

#include <ESP8266WiFi.h>
#include <DHT.h>
#include <ThingSpeak.h>

#define dht_pin 2
#define dht_type DHT11

DHT dht(dht_pin, dht_type);
WiFiClient client;

//char ssid[] = "Anindya_Net 2.5";
//char pwd[] = "07022001";

char ssid[] = "NindoFi";
char pwd[] = "AnindyaKbiswas";

long channelID = 2132478;
char writeAPIKey[] = "74XAOPKNHQOZYX74";

bool alt = true;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  WiFi.begin(ssid, pwd);
  while(WiFi.status() != WL_CONNECTED)
  {
    delay(200);
    Serial.println("..");
  }
  Serial.print("Connected to -> ");
  Serial.println(ssid);
  Serial.println(WiFi.localIP());
  dht.begin();
  ThingSpeak.begin(client);
}

void loop() {
  // put your main code here, to run repeatedly:
  float tempC = dht.readTemperature();
  float humidity = dht.readHumidity();

  Serial.print("Temperature : ");
  Serial.print(tempC);
  Serial.print("        ");
  Serial.print("Humidity : ");
  Serial.print(humidity);
  Serial.println();

  ThingSpeak.setField(1, tempC);
  ThingSpeak.setField(2, humidity);
  int x = ThingSpeak.writeFields(channelID, writeAPIKey);
  delay(2000);
}