Development

» WiFi PRO 16b: Send to Meshlium (HTTPS)

This example shows how to perform HTTPS GET requests to the Meshlium device. A special php file parses the fields and insert them into the Meshlium's database.

Required Materials

1 x Waspmote
1 x Battery
1 x WiFi PRO Module

Notes

- The battery has to be connected.
- This example can be executed in Waspmote v15

Code

/*
    ------ WIFI Example --------

    Explanation: This example shows how to perform HTTP GET requests
    to the Meshlium device. A special php file parses the fields and
    insert them into the Meshlium's database

    Copyright (C) 2018 Libelium Comunicaciones Distribuidas S.L.
    http://www.libelium.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Version:           3.1
    Design:            David Gascon
    Implementation:    Yuri Carmona
*/

// Put your libraries here (#include ...)
#include <WaspWIFI_PRO.h>
#include <WaspFrame.h>


// choose socket (SELECT USER'S SOCKET)
///////////////////////////////////////
uint8_t socket = SOCKET0;
///////////////////////////////////////


// choose URL settings
///////////////////////////////////////
char type[] = "https";
char host[] = "10.10.10.1";
char port[] = "443";
///////////////////////////////////////

// define trusted Certificate Authority
////////////////////////////////////////////////////////////////////////
char TRUSTED_CA[] =
"-----BEGIN CERTIFICATE-----\r"\
"MIIDxTCCAq2gAwIBAgIJANmfNvvZHqt5MA0GCSqGSIb3DQEBCwUAMHgxCzAJBgNV\r"\
"BAYTAkVTMQ8wDQYDVQQIDAZBcmFnb24xETAPBgNVBAcMCFphcmFnb3phMTIwMAYD\r"\
"VQQKDClMaWJlbGl1bSBDb211bmljYWNpb25lcyBEaXN0cmlidWlkYXMgUy5MLjER\r"\
"MA8GA1UEAwwIbWVzaGxpdW0wIBcNMTgwODIzMDcxNDE0WhgPMjExODA3MzAwNzE0\r"\
"MTRaMHgxCzAJBgNVBAYTAkVTMQ8wDQYDVQQIDAZBcmFnb24xETAPBgNVBAcMCFph\r"\
"cmFnb3phMTIwMAYDVQQKDClMaWJlbGl1bSBDb211bmljYWNpb25lcyBEaXN0cmli\r"\
"dWlkYXMgUy5MLjERMA8GA1UEAwwIbWVzaGxpdW0wggEiMA0GCSqGSIb3DQEBAQUA\r"\
"A4IBDwAwggEKAoIBAQDpWNu/u/UelrO6KsR0tofdhplr3npzm4ZqxvpvqNmYGykP\r"\
"NaelXnr/1Sl/39EYfcuwsUX4xsQSBcHrtm6HVrq1+vtYC/v8CV02nKCc0NtwR3nk\r"\
"KuF41Yy56kXKOE0LRkhcrI0Ti67apApN/v7NDuXU7j404eTiRACMGiL+HkUkO2Wr\r"\
"/YtMjsdDwgxDRet9GeCv/Euqy2xirjv1nuU5rG6uoJzWauXCvekutMMJ/2XXtweF\r"\
"X7SzWIkRz3LcOBXRhafs/dO1aL9LVibtDOxUYyLvJyeyL6FKjpqRHKAvehfsR49N\r"\
"VkLkBCl/tjhcTTHpvm0bsG+q7aKLoOhp8lYItDfLAgMBAAGjUDBOMB0GA1UdDgQW\r"\
"BBQpsed68QeqW+nIaXun/FOvVm4WzjAfBgNVHSMEGDAWgBQpsed68QeqW+nIaXun\r"\
"/FOvVm4WzjAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQB3rXMiBUx7\r"\
"yeJO29xKSAgdrGZe189WWiCfvdphMuaSH8OQooKd5d4a6CzmoiklusAFTfGiaXqK\r"\
"DPuE5/atjLAluj4NR2MZ4ti9bqhcCFdlDGKXAj3wqvEIGbjVppXkPRlFyM+/VIW6\r"\
"7hm59xKsWyymqxBfKmFsXgFA90mOqmzoPV0pu2d5Q+Kh6gEZYauiWkLIxa+y36Wq\r"\
"+HCe1q3vch5zOhPUnlpUmhzQd4K/AlyHEZUnG0hPzURnXk+qspb5xsiHuRoj9mkh\r"\
"MTNKb37FmwyZyM9u+KuNRKvZ0TJY0zs9+SDoDQJVRMwGh7I6IEHCuWNMl4N0aNaY\r"\
"2huxbcU1t/Z+\r"\
"-----END CERTIFICATE-----";
////////////////////////////////////////////////////////////////////////



uint8_t error;
uint8_t status;
unsigned long previous;


// define the Waspmote ID
char moteID[] = "node_01";


void setup()
{
  USB.println(F("Start program"));
  USB.println(F("***************************************"));
  USB.println(F("Once the module is set with one or more"));
  USB.println(F("AP settings, it attempts to join the AP"));
  USB.println(F("automatically once it is powered on"));
  USB.println(F("Refer to example 'WIFI_PRO_01' to configure"));
  USB.println(F("the WiFi module with proper settings"));
  USB.println(F("***************************************"));


  // set the Waspmote ID
  frame.setID(moteID);


  //////////////////////////////////////////////////
  // 1. Switch ON
  //////////////////////////////////////////////////
  error = WIFI_PRO.ON(socket);

  if (error == 0)
  {
    USB.println(F("1. WiFi switched ON"));
  }
  else
  {
    USB.println(F("1. WiFi did not initialize correctly"));
  }


  //////////////////////////////////////////////////
  // 2. Set Trusted CA
  //////////////////////////////////////////////////
  error = WIFI_PRO.setCA(TRUSTED_CA);

  if (error == 0)
  {
    USB.println(F("2. Trusted CA set OK"));
  }
  else
  {
    USB.println(F("2. Error calling 'setCA' function"));
    WIFI_PRO.printErrorCode();
  }


  //////////////////////////////////////////////////
  // 3. Switch OFF
  //////////////////////////////////////////////////
  WIFI_PRO.OFF(socket);
  USB.println(F("3. WiFi switched OFF"));
  USB.println(F("Setup done\n\n"));
}



void loop()
{
  // get actual time
  previous = millis();


  //////////////////////////////////////////////////
  // 1. Switch ON
  //////////////////////////////////////////////////
  error = WIFI_PRO.ON(socket);

  if (error == 0)
  {
    USB.println(F("WiFi switched ON"));
  }
  else
  {
    USB.println(F("WiFi did not initialize correctly"));
  }


  //////////////////////////////////////////////////
  // 2. Join AP
  //////////////////////////////////////////////////

  // check connectivity
  status =  WIFI_PRO.isConnected();

  // check if module is connected
  if (status == true)
  {
    USB.print(F("WiFi is connected OK"));
    USB.print(F(" Time(ms):"));
    USB.println(millis() - previous);

    ///////////////////////////////
    // 3.1. Create a new Frame
    ///////////////////////////////

    // create new frame (only ASCII)
    frame.createFrame(ASCII);

    // add sensor fields
    frame.addSensor(SENSOR_STR, "this_is_a_string");
    frame.addSensor(SENSOR_BAT, PWR.getBatteryLevel());

    // print frame
    frame.showFrame();


    ///////////////////////////////
    // 3.2. Send Frame to Meshlium
    ///////////////////////////////

    // http frame
    error = WIFI_PRO.sendFrameToMeshlium( type, host, port, frame.buffer, frame.length);

    // check response
    if (error == 0)
    {
      USB.println(F("HTTP OK"));
      USB.print(F("HTTP Time from OFF state (ms):"));
      USB.println(millis() - previous);
    }
    else
    {
      USB.println(F("Error calling 'getURL' function"));
      WIFI_PRO.printErrorCode();
    }
  }
  else
  {
    USB.print(F("WiFi is connected ERROR"));
    USB.print(F(" Time(ms):"));
    USB.println(millis() - previous);
  }


  //////////////////////////////////////////////////
  // 3. Switch OFF
  //////////////////////////////////////////////////
  WIFI_PRO.OFF(socket);
  USB.println(F("WiFi switched OFF\n\n"));
  delay(10000);
}







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