Question

我现在已经玩了两天的arduino，所以我是新手，但我有一个问题：wifi屏蔽不会与arduino以太网R3一起使用。我从sparkfun那里得到了它们：

https://www.sparkfun.com/products/11361 https://www.sparkfun.com/products/11287

每次我尝试运行此代码时：

/*

 This example  prints the Wifi shield's MAC address, and
 scans for available Wifi networks using the Wifi shield.
 Every ten seconds, it scans again. It doesn't actually
 connect to any network, so no encryption scheme is specified.

 Circuit:
 * WiFi shield attached

 created 13 July 2010
 by dlf (Metodo2 srl)
 modified 21 Junn 2012
 by Tom Igoe and Jaymes Dec
*/


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

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:
  unsigned long start=millis();
  while (WiFi.status() == WL_NO_SHIELD) 
  {
    if ((millis()-start)>30000)
    {
      Serial.println("WiFi shield not present"); 
      // don't continue:
      while(true);
    }
    delay(500);
  }

  // Print WiFi MAC address:
  printMacAddress();

  // scan for existing networks:
  Serial.println("Scanning available networks...");
  listNetworks();
}

void loop() {
  delay(10000);
  // scan for existing networks:
  Serial.println("Scanning available networks...");
  listNetworks();
}

void printMacAddress() {
  // the MAC address of your Wifi shield
  byte mac[6];                     

  // print your MAC address:
  WiFi.macAddress(mac);
  Serial.print("MAC: ");
  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);
}

void listNetworks() {
  // scan for nearby networks:
  Serial.println("** Scan Networks **");
  int numSsid = WiFi.scanNetworks();
  if (numSsid == -1)
  {
    Serial.println("Couldn't get a wifi connection");
    while(true);
  }

  // print the list of networks seen:
  Serial.print("number of available networks:");
  Serial.println(numSsid);

  // print the network number and name for each network found:
  for (int thisNet = 0; thisNet<numSsid; thisNet++) {
    Serial.print(thisNet);
    Serial.print(") ");
    Serial.print(WiFi.SSID(thisNet));
    Serial.print("\tSignal: ");
    Serial.print(WiFi.RSSI(thisNet));
    Serial.print(" dBm");
    Serial.print("\tEncryption: ");
    printEncryptionType(WiFi.encryptionType(thisNet));
  }
}

void printEncryptionType(int thisType) {
  // read the encryption type and print out the name:
  switch (thisType) {
  case ENC_TYPE_WEP:
    Serial.println("WEP");
    break;
  case ENC_TYPE_TKIP:
    Serial.println("WPA");
    break;
  case ENC_TYPE_CCMP:
    Serial.println("WPA2");
    break;
  case ENC_TYPE_NONE:
    Serial.println("None");
    break;
  case ENC_TYPE_AUTO:
    Serial.println("Auto");
    break;
  }
}

我得到一个没有WiFi盾牌。关于如何正确连接它的任何想法？

谢谢！

Answer 1

您列出的产品似乎是多余的。具体来说，〜/ 11361是一体化的arduino dev。板+以太网但没有无线（即以太网连接通过电缆），而〜/ 11287是一个WiFi屏蔽，用于通用的Arduino板并连接到互联网。

问题可能是在11361上使用11287作为盾牌会导致冲突？我不知道，但链接http://arduino.cc/en/Reference/WiFi有以下评论：

WiFi库与以太网库非常相似，而且很多函数调用是一样的。

这让我有点怀疑。

在标准Arduino板上尝试屏蔽（11287）。

带有WIFI的Arduino以太网板R3

1 个答案: