Go Down

Topic: Rugged Audio Shield for Arduino (Read 15 times) previous topic - next topic

horia_b

Hello everyone!
I am a newbie in the Arduino world, having lots of fun, but ran into a problem.
I am trying to combine a Rugged Audio Shield with an Arduino WiFi shield on top of an Arduino Uno.
I got the Audio shield to work by itself, I got the WiFi to work by itself, but when I plug in the 3 of them together, in no matter what order, I keep getting the message "WiFi shield not present" (not sure this is the exact message, but...).
Is there other ways to connect them, or at least how do I diagnose why the WiFi shield stops working when the Audio shield is present?

Appreciate any comments and suggestions!
h

PaulS

Quote
how do I diagnose why the WiFi shield stops working when the Audio shield is present?

Both shields use SPI to talk to the Arduino, with different SS pins to define which slave the Arduino is talking to. What it comes down to is your code. Where is it?

horia_b

Thanks for the reply Paul.
I am just trying to run one of the sample sketches that come with the WiFi library. Here's the code:
/*
  Web client

This sketch connects to a website (http://www.google.com)
using a WiFi shield.

This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.

This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.

Circuit:
* WiFi shield attached

created 13 July 2010
by dlf (Metodo2 srl)
modified 31 May 2012
by Tom Igoe
*/


#include <SPI.h>
#include <WiFi.h>

// char ssid[] = "yourNetwork"; //  your network SSID (name)
char ssid[] = "radio1";
// char pass[] = "secretPassword";    // your network password (use for WPA, or use as key for WEP)
char pass[] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
int keyIndex = 0;            // your network key Index number (needed only for WEP)

int status = WL_IDLE_STATUS;
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(173,194,73,105);  // numeric IP for Google (no DNS)
//char server[] = "www.google.com";    // name address for Google (using DNS)

// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
WiFiClient client;

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 SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:   
    // status = WiFi.begin(ssid, pass);
    // Connect to WEP
    status = WiFi.begin(ssid, keyIndex, pass);
 
    // wait 10 seconds for connection:
    delay(10000);
  }
  Serial.println("Connected to wifi");
  printWifiStatus();
 
  Serial.println("\nStarting connection to server...");
  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected to server");
    // Make a HTTP request:
    client.println("GET /search?q=arduino HTTP/1.1");
    client.println("Host:www.google.com");
    client.println("Connection: close");
    client.println();
  }
}

void loop() {
  // if there are incoming bytes available
  // from the server, read them and print them:
  while (client.available()) {
    char c = client.read();
    Serial.write(c);
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting from server.");
    client.stop();

    // do nothing forevermore:
    while(true);
  }
}


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

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

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




Go Up