Development v12

Warning - Product Update

All the resources present on this section belong to Waspmote v12, Waspmote Plug & Sense! v12 and Meshlium v3.8.

If you have a Waspmote v15, Waspmote Plug & Sense! v15 or Meshlium v4.0 please go to the new Development Section.

Check what is your version and what are the differences between the old and the new one in this document.

» Wifi 19: Broadcast UDP messages

This example shows how to create a broadcast UDP connection.

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.
- Remember to set the correct UDP and AP settings

Code

/*
 *  ------Waspmote WIFI_19 --------
 *
 *  Explanation: This example shows how to create a broadcast UDP 
 *  connection. 
 *
 *  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 
/////////////////////////////////
#define ESSID "libelium_AP"
#define AUTHKEY "password"
/////////////////////////////////

// UDP server settings
/////////////////////////////////
#define IP_ADDRESS     "???.???.???.???"
#define REMOTE_PORT    3000
#define LOCAL_PORT     2000
#define TIME_INTERVAL  0x7
#define MESSAGE        "BROADCAST_TEST"
/////////////////////////////////


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(UDP);
  // 2. Configure the way the modules will resolve the IP address.
  WIFI.setDHCPoptions(DHCP_ON);  
  // 3. set Auth key 
  WIFI.setAuthKey(WPA1,AUTHKEY);
  // 4. Configure how to connect the AP 
  WIFI.setJoinMode(MANUAL);
  // 5. Store values
  WIFI.storeData();
  
  
}

void loop()
{
  // switch WiFi ON 
  WIFI.ON(socket); 
  
  // Join AP
  if( WIFI.join(ESSID) )
  {
    USB.println(F("joined!"));
    
    // Call the function to create the broadcast UDP messages 
    WIFI.sendAutoBroadcast(IP_ADDRESS, REMOTE_PORT, TIME_INTERVAL, MESSAGE);
    
    // Now the waspmote will send udp broadcast messages each 7 seconds 
    delay(20000);
    
    // leave AP
    WIFI.leave();
  }
  else
  {
    USB.println(F("NOT joined"));
  }
  
  // Switch WiFi OFF
  WIFI.OFF();  
  
  USB.println(F("*****************************"));
  
  // delay 2 seconds
  delay(2000); 
}

Output

D#
Wifi switched ON
joined!
*****************************
joined!
*****************************
joined!
*****************************
...

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