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Topic: wifi shield not present (Read 965 times) previous topic - next topic

zebdaag

Hi there,

As you wil notice I'm not very experienced in Arduino yet, I can't get my Arduino wifi shield to work. I plugged it on to my arduino board.  What I do next is try this standard example code (below). All I get is a "wifi shield not present" message. Hope someone can help me with this...

Thanks in advance

Code: [Select]
/*

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 31 May 2012
by Tom Igoe
*/
#include <WiFi.h>

char ssid[] = "R33";     // the name of your network
int status = WL_IDLE_STATUS;     // the Wifi radio's status

void setup() {
  //Initialize serial and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }
 
  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    // don't continue:
    while(true);
  }
 
// attempt to connect to Wifi network:
  while ( status != WL_CONNECTED) {
    Serial.print("Attempting to connect to open SSID: ");
    Serial.println(ssid);
    status = WiFi.begin(ssid);

    // wait 10 seconds for connection:
    delay(10000);
  }
   
  // you're connected now, so print out the data:
  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);
}

pitusso

Hi,

Quote
All I get is a "wifi shield not present"


which Arduino board are you using?
UNO / 2009 / Leonardo / other?

Same thing happens to me when i use wifi shield with the 2009 board..

zebdaag

Sorry for the late reply, but I have an Arduino UNO.

kulkarniparag4

i am using mega and even i am getting the same message.
Can someone please tell us whats the problem with wiring?

P18F4550


kulkarniparag4

I am using shield provided by

http://www.protocentral.com/103-wifi-shield.html

But i think te wiring that i made was wrong. can you please tell me how should i do that?

PaulS

The WiFi library and the code in the initial post works with the OFFICIAL WiFi shield, and ONLY the official WiFi shield.

The fact that you are NOT using the official WiFi shield means that you can NOT use the WiFi library.

zebdaag

Okay but I am using the orginal wifi shield and de Arduino UNO and i get this message what is going wrong?

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