ESP8266 DHT-11 Thingspeak Sketch

// www.arduinesp.com
//
// Plot DTH11 data on thingspeak.com using an ESP8266
// April 11 2015
// Author: Jeroen Beemster
// Website: www.arduinesp.com
// http://www.arduinesp.com/thingspeak


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

// replace with your channel's thingspeak API key,
String apiKey = "F2C4EOEXBO746TX5";
const char* ssid = "SomethingAwful";
const char* password = "lljk";

const char* server = "api.thingspeak.com";
#define DHTPIN 2 // what pin we're connected to

DHT dht(DHTPIN, DHT11,15);
WiFiClient client;


void setup() {
  Serial.begin(115200);
  delay(10);
  //initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
  dht.begin();

  WiFi.begin(ssid, password);

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second

  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second
  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
}


void loop() {


  float h = 14; //dht.readHumidity();
  float t = 192; //dht.readTemperature();
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  if (client.connect(server,80)) {  //   "184.106.153.149" or api.thingspeak.com
    digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
    Serial.print("Begin send\n");
    String postStr = apiKey;
           postStr +="&field1=";
           postStr += "THRONEGUARD1"; //String(t);
           postStr +="&field2=";
           postStr += "THRONEGUARD2"; //String(h);
           postStr += "\r\n\r\n";

     client.print("POST /update HTTP/1.1\n");
     client.print("Host: api.thingspeak.com\n");
     client.print("Connection: close\n");
     client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
     client.print("Content-Type: application/x-www-form-urlencoded\n");
     client.print("Content-Length: ");
     client.print(postStr.length());
     client.print("\n\n");
     client.print(postStr);
     Serial.print("-End send\n");
     digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW

     Serial.print("Temperature: ");
     Serial.print(t);
     Serial.print(" degrees Celcius Humidity: ");
     Serial.print(h);
     Serial.println("% send to Thingspeak");
/*
    digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
    delay(1000);              // wait for a second
    digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
    delay(1000);              // wait for a second
*/
  }
  client.stop();

  Serial.println("Waiting...");
  // thingspeak needs minimum 15 sec delay between updates
  delay(360000);  //20000 = 20 seconds //120000 = 2 min
}