WiFi PRO V3 24: Send to Meshlium via HTTP

This example shows how to perform HTTP GET requests.

Required materials

1 x Waspmote 1 x Battery 1 x WiFi PRO V3 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

    Copyright (C) 2021 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:           3.0
    Implementation:    Luis Miguel Martí
*/

// Put your libraries here (#include ...)
#include <WaspWIFI_PRO_V3.h>
#include <WaspFrame.h>


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


// choose HTTP server settings
///////////////////////////////////////
char type[] = "http";
char host[] = "10.10.10.1";
uint16_t port = 80;
///////////////////////////////////////

uint8_t error;
uint8_t status;

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

void setup()
{
  USB.println(F("Start program"));

  USB.println(F("***************************************"));
  USB.println(F("It is assumed the module was previously"));
  USB.println(F("configured in autoconnect mode and with"));
  USB.println(F("the Meshlium AP settings."));
  USB.println(F("Once the module is configured with the"));
  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_02' to configure"));
  USB.println(F("the WiFi module with proper settings"));
  USB.println(F("***************************************"));

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



void loop()
{
  
  //////////////////////////////////////////////////
  // 1. Switch ON
  //////////////////////////////////////////////////  
  error = WIFI_PRO_V3.ON(socket);

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

  // check connectivity
  status =  WIFI_PRO_V3.isConnected();

  // check if module is connected
  if (status == true)
  {
    ///////////////////////////////
    // 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_V3.sendFrameToMeshlium( type, host, port, frame.buffer, frame.length);

    // check response
    if (error == 0)
    {
      USB.println(F("Send frame to meshlium done"));
    }
    else
    {
      USB.println(F("Error sending frame"));
      if (WIFI_PRO_V3._httpResponseStatus)
      {
        USB.print(F("HTTP response status: "));  
        USB.println(WIFI_PRO_V3._httpResponseStatus);  
      }
    }
  }
  else
  {
    USB.print(F("2. WiFi is connected ERROR"));
  }
  //////////////////////////////////////////////////
  // 3. Switch OFF
  //////////////////////////////////////////////////  
  WIFI_PRO_V3.OFF(socket);
  USB.println(F("WiFi switched OFF\n\n")); 
  delay(10000);
}

Output

H#
Start program
***************************************
It is assumed the module was previously
configured in autoconnect mode and with
the Meshlium AP settings.
Once the module is configured with the
AP settings, it attempts to join the AP
automatically once it is powered on
Refer to example 'WIFI_02' to configure
the WiFi module with proper settings
***************************************
WiFi switched ON
===============================
Current ASCII Frame:
Length: 61
Frame Type:  134
frame (HEX): 3C3D3E86022332333437373836334439333734324338236E6F64655F30312330235354523A746869735F69735F615F737472696E67234241543A383623
frame (STR): <=>�#23477863D93742C8#node_01#0#STR:this_is_a_string#BAT:86#
===============================
Send frame to meshlium done
WiFi switched OFF