AT_ESP8266.ino

/************************************************************

Distributed as-is; no warranty is given.
************************************************************/
// The SparkFunESP8266WiFi library uses SoftwareSerial
// to communicate with the ESP8266 module. Include that
// library first:
#include <SoftwareSerial.h>
// Include the ESP8266 AT library:
#include <SparkFunESP8266WiFi.h>
// Include the ArduinoJSON library:
#include <ArduinoJson.h>

#include <Servo.h>


//////////////////////////////
// WiFi Network Definitions //
//////////////////////////////
// Replace these two character strings with the name and
// password of your WiFi network.
const char mySSID[] = "513570";
const char myPSK[] = "H21208269B2B";

/////////////////////
// Weather Constants //
/////////////////////
// Weather destination server:
const char* WeatherServer = "api.openweathermap.org";
// Weather http port:
const int httpPort = 80;
// Weather idCity:
const String id_City = "4019233"; //"4019233";
// Weather app id:
const String App_id = "44db6a862fba0b067b1930da0d769e98";
String httpHeader = "GET /data/2.5/weather?id=" + id_City +"&appid="+App_id+ "&units=metric" +" HTTP/1.1\r\n" +
                    "Host: " + WeatherServer + "\r\n" + 
                    "Content-Type: application/x-www-form-urlencoded\r\n"+
                    "Connection: close\r\n\r\n";
                    
//char json[]=
//  "{\"coord\":{\"lon\":-102.3,\"lat\":21.88},\"weather\":[{\"id\":803,\"main\":\"Clouds\",\"description\":\"broken clouds\",\"icon\":\"04d\"}],\"base\":\"cmc stations\",\"main\":{\"temp\":16,\"pressure\":1024,\"humidity\":19,\"temp_min\":16,\"temp_max\":16},\"wind\":{\"speed\":2.6,\"deg\":210},\"clouds\":{\"all\":75},\"dt\":1452966060,\"sys\":{\"type\":1,\"id\":3966,\"message\":0.0032,\"country\":\"MX\",\"sunrise\":1452951019,\"sunset\":1452990487},\"id\":4019233,\"name\":\"Aguascalientes\",\"cod\":200}";
  
//StaticJsonBuffer<800> jsonBuffer;
//DynamicJsonBuffer jsonBuffer;
      
//JsonObject& root = jsonBuffer.parseObject(json);

Servo myservo;  // create servo object to control a servo

void setup() 
{
  int status;
  Serial.begin(9600);
  myservo.attach(3);  // attaches the servo on pin 5 to the servo object
  
  // To turn the MG2639 shield on, and verify communication
  // always begin a sketch by calling cell.begin().
  status = esp8266.begin();
  if (status <= 0)
  {
    Serial.println(F("Unable to communicate with shield. Looping"));
    while(1) ;
  }
  
  esp8266.setMode(ESP8266_MODE_STA); // Set WiFi mode to station
  if (esp8266.status() <= 0) // If we're not already connected
  {
    if (esp8266.connect(mySSID, myPSK) < 0)
    {
      Serial.println(F("Error connecting"));
      while (1) ;
    }    
  }
  
  // Get our assigned IP address and print it:
  Serial.print(F("My IP address is: "));
  Serial.println(esp8266.localIP());
  
  Serial.println(F("Press any key to post to IFTTT!"));
}

void loop()
{
  // If a character has been received over serial:
  if (Serial.available())
  {
    // !!! Make sure we haven't posted recently
    // Post to IFTTT!
    postToIFTTT();
    // Then clear the serial buffer:
    while (Serial.available())
      Serial.read();
  }
}

void postToIFTTT()
{
   //char json[]=
  //"{\"coord\":{\"lon\":-102.3,\"lat\":21.88},\"weather\":[{\"id\":803,\"main\":\"Clouds\",\"description\":\"broken clouds\",\"icon\":\"04d\"}],\"base\":\"cmc stations\",\"main\":{\"temp\":16,\"pressure\":1024,\"humidity\":19,\"temp_min\":16,\"temp_max\":16},\"wind\":{\"speed\":2.6,\"deg\":210},\"clouds\":{\"all\":75},\"dt\":1452966060,\"sys\":{\"type\":1,\"id\":3966,\"message\":0.0032,\"country\":\"MX\",\"sunrise\":1452951019,\"sunset\":1452990487},\"id\":4019233,\"name\":\"Aguascalientes\",\"cod\":200}";

  char json[]="";
  
  StaticJsonBuffer<2048> jsonBuffer;
  //DynamicJsonBuffer jsonBuffer;
      
  JsonObject& root = jsonBuffer.parseObject(json);
  
  // Create a client, and initiate a connection
  ESP8266Client client;
  
  if (client.connect(WeatherServer, httpPort) <= 0)
  {
    Serial.println(F("Failed to connect to server."));
    return;
  }
  Serial.println(F("Connected."));

  Serial.println(F("Posting to IFTT Event!"));
  
  client.print(httpHeader);

  //delay(500); // wait for server to respond
  
  // read response
  String section="header";
  while(client.available()){
    String line = client.readStringUntil('\r');
    Serial.print(line);
    // we’ll parse the HTML body here
    if (section=="header") { // headers..
      Serial.print(".");
      if (line=="\n") { // skips the empty space at the beginning 
        section="json";
      }
    }
    else if (section=="json") {  // print the good stuff
      section="ignore";
      String result = line.substring(1);
      //Serial.print(result);
      //delay(1000);

      // Parse JSON
      int size = result.length() + 1;
      char json[size];
      result.toCharArray(json, size);
      DynamicJsonBuffer jsonBuffer;
      //StaticJsonBuffer<2048> jsonBuffer;
      JsonObject& root = jsonBuffer.parseObject(json);
      //JsonObject& json_parsed = jsonBuffer.parseObject(json);
      if (!root.success())
      {
        //Serial.println("parseObject() failed");
        //return;
      }
    
   // available() will return the number of characters
  // currently in the receive buffer.
   // Read all the lines of the reply from server and print them to Serial
  
 
  //while (client.available())
  //  Serial.write(client.read()); // read() gets the FIFO char
  // connected() is a boolean return value - 1 if the 
  // connection is active, 0 if it's closed.
  if (client.connected())
    client.stop(); // stop() closes a TCP connection.
 /*
    //
  // Step 3: Retrieve the values
  //
  /*
 if (!root.success()) {
    Serial.println(F("parseObject() failed"));
    return;
  }
  */
  //float longi = root["coord"]["lon"];
  //float lati = root["coord"]["lat"];
  //uint8_t type = root["main"]["temp"];
  //const char* sensor = root["weather"][0]["main"];
  //const char* sensor2 = root["weather"][0]["description"];
  
  //Serial.println();
  //Serial.println(type);
 // Serial.println(longi);
 // Serial.println(lati);
  //Serial.println(sensor);
  //Serial.println(sensor2);
  //myservo.write(type);
}