Development

Communication / WiFi:

» Wifi 10: Join open AP

This example shows how to how to join to an open AP

Required Materials

1 x Waspmote
1 x Battery
1 x WiFi Module

Notes

- The battery has to be connected.
- Plug the antenna in the SMA connector.

Code

/*
 *  ------Waspmote WIFI_10 Example--------
 *
 *  Explanation: This example shows how to how to join to an OPEN AP.
 *  So NO encryption is used. The joining process is MANUAL.
 *  
 *  Copyright (C) 2013 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 2 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:                0.2
 *  Design:                 David Gascón
 *  Implementation:         Joaquin Ruiz
 */

// Include WIFI library 
#include <WaspWIFI.h>

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

// WiFi AP settings (CHANGE TO USER'S AP)
/////////////////////////////////
#define ESSID "libelium"
/////////////////////////////////


void setup()
{
  // Switch ON the WiFi module on the desired socket
  if( WIFI.ON(socket) == 1 )
  {    
    USB.println(F("Wifi switched ON"));
  }
  else
  {
    USB.println(F("Wifi did not initialize correctly"));
  }

  // 1. Configure the transport protocol (UDP, TCP, FTP, HTTP...)
  WIFI.setConnectionOptions(CLIENT);
  // 2. Configure the way the modules will resolve the IP address.
  WIFI.setDHCPoptions(DHCP_ON);
  // 3. Configure how to connect the AP
  WIFI.setJoinMode(MANUAL);
  // 4. Store Values
  WIFI.storeData();
}

void loop()
{ 
  // Switch on the WiFi module
  WIFI.ON(socket);
  
  // If it is manual, call join giving the name of the AP. 
  if (WIFI.join(ESSID))
  { 
    USB.println(F("joined AP"));

    // Displays Access Point status.
    USB.println(F("\n----------------------"));
    USB.println(F("AP Status:"));
    USB.println(F("----------------------"));
    WIFI.getAPstatus();

    // Displays IP settings.
    USB.println(F("\n----------------------"));
    USB.println(F("IP Settings:"));
    USB.println(F("----------------------"));
    WIFI.getIP();
    USB.println();
    
    // 4.1 Call the function that needs a connection. 
    WIFI.resolve("www.libelium.com"); 
  }
  else
  {
    USB.println(F("not joined"));
  }
  
  // Switch off the module
  WIFI.OFF();
  USB.println(F("*******************"));
}

Output

D#
Wifi switched ON
joined AP

----------------------
AP Status:
----------------------
SSid=libelium
Chan=6
Assoc=OK
Rate=12, 24Mb
Auth=OK
Mode=OPEN
DHCP=OK,renew=2699
Boot=2401
Time=FAIL
Links=1
<2.32>

----------------------
IP Settings:
----------------------
IF=UP
DHCP=ON
IP=192.168.43.128:2000
NM=255.255.255.0
GW=192.168.43.1
HOST=0.0.0.0:2000
PROTO=TCP_CLIENT,
MTU=1524
FLAGS=0x7
TCPMODE=0x0
BACKUP=0.0.0.0
<2.32>

R: lookup www.libelium.com

www.libelium.com=46.105.20.38
<2.32>
*******************

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