Development

» WiFi PRO 23: Set multiple SSID

This example shows how to configure several Access Point profiles in order to join different networks to improve the robustness of the deployment (i.e. the Waspmote moves inside a building)

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 configure several Access
 *  Point profiles in order to join different networks to improve the
 *  robustness of the deployment (i.e. the Waspmote moves inside a building)
 *  
 *  Copyright (C) 2016 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://wwProfileClientEnumw.gnu.org/licenses/>.  
 *  
 *  Version:           3.0
 *  Design:            David Gascon 
 *  Implementation:    Yuri Carmona
 */


#include <WaspWIFI_PRO.h>


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

// WiFi AP settings (CHANGE TO USER'S AP)
/////////////////////////////////
char ESSID_0[]   = "ANDROID";
char AUTHKEY_0[] = "yuripass";
/////////////////////////////////
char ESSID_1[]   = "libelium_AP";
char AUTHKEY_1[] = "password";
/////////////////////////////////
char ESSID_2[]   = "libelium_wsn2";
char AUTHKEY_2[] = "libelium.2012_";
/////////////////////////////////


uint8_t error;
uint8_t status;
unsigned long previous;



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


  //////////////////////////////////////////////////
  // 1. Switch ON the WiFi module
  //////////////////////////////////////////////////
  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. Reset to default values
  //////////////////////////////////////////////////
  error = WIFI_PRO.resetValues();

  if (error == 0)
  {    
    USB.println(F("2. WiFi reset to default"));
  }
  else
  {
    USB.println(F("2. WiFi reset to default ERROR"));
  }


  //////////////////////////////////////////////////
  // 3. Set PROFILE_0
  //////////////////////////////////////////////////

  // 3.1. Set ESSID
  error = WIFI_PRO.setESSID( PROFILE_0, ESSID_0 );

  if (error == 0)
  {    
    USB.println(F("3.1. WiFi set ESSID_0 OK"));
  }
  else
  {
    USB.println(F("3.1. WiFi set ESSID_0 ERROR"));
  }

  // 3.2. Set AUTHKEY
  error = WIFI_PRO.setPassword( PROFILE_0, WPA2, AUTHKEY_0 );

  if (error == 0)
  {    
    USB.println(F("3.2. WiFi set AUTHKEY_0 OK"));
  }
  else
  {
    USB.println(F("3.2. WiFi set AUTHKEY_0 ERROR"));
  }


  //////////////////////////////////////////////////
  // 4. Set PROFILE_1
  //////////////////////////////////////////////////

  // 4.1. Set ESSID
  error = WIFI_PRO.setESSID( PROFILE_1, ESSID_1 );

  if (error == 0)
  {    
    USB.println(F("4.1. WiFi set ESSID_1 OK"));
  }
  else
  {
    USB.println(F("4.1. WiFi set ESSID_1 ERROR"));
  }  

  // 4.2. Set AUTHKEY
  error = WIFI_PRO.setPassword( PROFILE_1, WPA2, AUTHKEY_1 );

  if (error == 0)
  {    
    USB.println(F("4.2. WiFi set AUTHKEY_1 OK"));
  }
  else
  {
    USB.println(F("4.2. WiFi set AUTHKEY_1 ERROR"));
  }


  //////////////////////////////////////////////////
  // 5. Set PROFILE_2
  //////////////////////////////////////////////////

  // 5.1. Set ESSID
  error = WIFI_PRO.setESSID( PROFILE_2, ESSID_2 );

  if (error == 0)
  {    
    USB.println(F("5.1. WiFi set ESSID_2 OK"));
  }
  else
  {
    USB.println(F("5.1. WiFi set ESSID_2 ERROR"));
  }

  // 5.2. Set AUTHKEY
  error = WIFI_PRO.setPassword( PROFILE_2, WPA2, AUTHKEY_2 );

  if (error == 0)
  {    
    USB.println(F("5.2. WiFi set AUTHKEY_2 OK"));
  }
  else
  {
    USB.println(F("5.2. WiFi set AUTHKEY_2 ERROR"));
  }


  //////////////////////////////////////////////////
  // 6. Software Reset 
  // Parameters take effect following either a 
  // hardware or software reset
  //////////////////////////////////////////////////
  error = WIFI_PRO.softReset();

  if (error == 0)
  {    
    USB.println(F("6. WiFi softReset OK"));
  }
  else
  {
    USB.println(F("6. WiFi softReset ERROR"));
  }

  USB.println(F("SETUP done\n\n"));
}



void loop()
{ 

  //////////////////////////////////////////////////
  // 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
  //////////////////////////////////////////////////  

  // get actual time
  previous = millis();

  /***********************************************************
   * WARNING: When multiple ESSIDs are set up, it is mandatory 
   * to use the 'isConnectedMultiple()' function in order to 
   * check connectivity to any of the APs defined.
   * Normally, it takes a while to join one of the APs defined.
   ************************************************************/

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

    // Get actual 'Connection Status'
    error = WIFI_PRO.reportStatusComplete();

    if (error == 0)
    {
      USB.println(F("----------------------------------------"));
      USB.print(F("--> essid:"));    
      USB.println(WIFI_PRO._essid);
      USB.print(F("--> ip:"));    
      USB.println(WIFI_PRO._ip);
      USB.print(F("--> tx rate:"));
      USB.println(WIFI_PRO._rate, DEC );
      USB.print(F("--> signal level(%RSSI):"));
      USB.println(WIFI_PRO._level, DEC );
      USB.print(F("--> link quality(%SNR):"));
      USB.println(WIFI_PRO._quality, DEC );
      USB.print(F("--> AP bssid:"));    
      USB.println(WIFI_PRO._bssid);
      USB.print(F("--> channel:"));    
      USB.println(WIFI_PRO._channel,DEC);
      USB.print(F("--> SNR(dBm):"));    
      USB.println(WIFI_PRO._snr,DEC);
      USB.println(F("----------------------------------------"));
    }    
  }
  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(5000);
}

Output

H#
Start program
1. WiFi switched ON
2. WiFi reset to default
3.1. WiFi set ESSID_0 OK
3.2. WiFi set AUTHKEY_0 OK
4.1. WiFi set ESSID_1 OK
4.2. WiFi set AUTHKEY_1 OK
5.1. WiFi set ESSID_2 OK
5.2. WiFi set AUTHKEY_2 OK
6. WiFi softReset OK
SETUP done


WiFi switched ON
WiFi is connected OK Time(ms):6300
----------------------------------------
--> essid:AndroidAP
--> ip:192.168.43.228
--> tx rate:54
--> signal level(%RSSI):100
--> link quality(%SNR):81
--> AP bssid:02:1A:11:F7:C1:33
--> channel:6
--> SNR(dBm):54
----------------------------------------
WiFi switched OFF


WiFi switched ON
WiFi is connected OK Time(ms):15026
----------------------------------------
--> essid:libelium_AP
--> ip:10.10.10.219
--> tx rate:54
--> signal level(%RSSI):54
--> link quality(%SNR):42
--> AP bssid:04:F0:21:1B:5F:EF
--> channel:3
--> SNR(dBm):28
----------------------------------------
WiFi switched OFF

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