(:source lang=arduino tabwidth=4:) /*

 This example connects to an unencrypted Wifi network. 
 Then it prints the  MAC address of the Wifi shield,
 the IP address obtained, and other network details.

 Circuit:
 * WiFi shield attached

 created 13 July 2010
 by dlf (Metodo2 srl)
 modified 29 Feb 2012
 by Scott Fitzgerald
 */
 #include <WiFi.h>

char ssid[] = "yourNetwork"; // the name of your network int status = WL_IDLE_STATUS; // the Wifi radio's status

void setup() {

  // initialize serial:
  Serial.begin(9600);

  // attempt to connect to an open network:
  Serial.print("Attempting to connect to open network: ");
  Serial.println(ssid);
  status = WiFi.begin(ssid);

  // if you're not connected, stop here:
  if ( status != WL_CONNECTED) { 
    Serial.println("Couldn't get a wifi connection");
    while(true);
  } 
  // if you are connected :
  else {
      Serial.print("You're connected to the network");
      printCurrentNet();
      printWifiData();
  }

}

void loop() {

  // check the network connection once every 10 seconds:
  delay(10000);
  printCurrentNet();

}

void printWifiData() {

  // print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
    Serial.print("IP Address: ");
  Serial.println(ip);
  Serial.println(ip);

  // print your MAC address:
  byte mac[6];  
  WiFi.macAddress(mac);
  Serial.print("MAC address: ");
  Serial.print(mac[5],HEX);
  Serial.print(":");
  Serial.print(mac[4],HEX);
  Serial.print(":");
  Serial.print(mac[3],HEX);
  Serial.print(":");
  Serial.print(mac[2],HEX);
  Serial.print(":");
  Serial.print(mac[1],HEX);
  Serial.print(":");
  Serial.println(mac[0],HEX);

  // print your subnet mask:
  IPAddress subnet = WiFi.subnetMask();
  Serial.print("NetMask: ");
  Serial.println(subnet);

  // print your gateway address:
  IPAddress gateway = WiFi.gatewayIP();
  Serial.print("Gateway: ");
  Serial.println(gateway);

}

void printCurrentNet() {

  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  // print the MAC address of the router you're attached to:
  byte bssid[6];
  WiFi.BSSID(bssid);    
  Serial.print("BSSID: ");
  Serial.print(bssid[5],HEX);
  Serial.print(":");
  Serial.print(bssid[4],HEX);
  Serial.print(":");
  Serial.print(bssid[3],HEX);
  Serial.print(":");
  Serial.print(bssid[2],HEX);
  Serial.print(":");
  Serial.print(bssid[1],HEX);
  Serial.print(":");
  Serial.println(bssid[0],HEX);

  // print the received signal strength:
  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.println(rssi);

  // print the encryption type:
  byte encryption = WiFi.encryptionType();
  Serial.print("Encryption Type:");
  Serial.println(encryption,HEX);

} (:sourceend:)

This example shows you how to connect to an open (not encrypted) 802.11b/g network with the Arduino WiFi shield. Your Arduino's serial monitor will provide information about the connection once it has connected.

The WiFi shield uses pins 10, 11, 12, and 13 for the SPI connection to the HDG104 module. Digital pin 4 is used to control the slave select pin on the SD card.

You should have access to a 802.11b/g wireless network that connects to the internet for this example. You will need to change the network settings in the sketch to correspond to your particular networks SSID.

In the above image, the Arduino would be stacked below the WiFi shield.

Examples > WiFi Library

Connect No Encryption

This example shows you how to make a HTTP request using an Ethernet shield. It returns a Google search for the term "Arduino". The results of this search are viewable as HTML through your Arduino's serial window.

(:div class=BOM :)

Hardware Required

• Arduino WiFi Shield
• Shield-compatible Arduino board

(:divend:)

Circuit

(:div class=circuit :)

The Ethernet shield allows you to connect a WizNet Ethernet controller to the Arduino via the SPI bus. It uses pins 10, 11, 12, and 13 for the SPI connection to the WizNet. Later models of the Ethernet shield also have an SD Card on board. Digital pin 4 is used to control the slave select pin on the SD card.

The shield should be connected to a network with an ethernet cable. You will need to change the network settings in the program to correspond to your network.

image developed using Fritzing. For more circuit examples, see the Fritzing project page

In the above image, the Arduino would be stacked below the Ethernet shield.

(:divend:)

Schematic

(:div class=circuit :)

(:divend:)

Code:

(:div class=code :) (:source http://github.com/arduino/Arduino/raw/master/libraries/WiFi/examples/ConnectNoEncryption/ConnectNoEncryption.ino lang=arduino tabwidth=4:) (:divend:)

See Also:

(:include WiFiTutorialSeeAlsoInclude:)