Arduino库教程-WIfi无线扩展块101-Connect No Encryption

Connect No Encryption

• 本例演示如何用Arduino WiFi扩展板101或MKR1000连接到一个开放的（未加密） 802.11b/g网络。一旦连接，你的Arduino软件（IDE）串口监视器将提供连接信息。

硬件要求

• Arduino WiFi Shield 101
• Arduino or Genuino Zero board
  或者
• MKR1000

电路

• 数字引脚7被用来作为WiFi Shield 101 和 开发板的握手引脚使用，而不应该被占用。

• 这个例子里你应该进入一个连接到互联网的802.11b/g无线网络。你需要改变程序里的网络设置来符合您的特定网络SSID。

图由 Fritzing 绘制
在上图，Arduino 或 Genuino Zero 开发板应该在堆叠在 WiFi shield上面。

样例代码

/*

 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 <SPI.h>
#include <WiFi101.h>

char ssid[] = "yourNetwork";     // 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 native USB port 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);
}

[Get Code]

更多

• WiFi library – WiFi101 库的参考网页

• WiFi Shield – WiFi 扩展板 101 的产品细节

• MKR1000 – MKR1000 板的产品细节

• Connect No Encryption: 演示如何连接到一个开放的网络。

• Connect With WEP: 演示如何连接到用WEP加密的网络。

• Connect With WPA: 演示如何连接到一个用WPA2个人加密网络。

• Scan Networks:显示出所有在范围内的无线网络。

• Simple Web Server WiFi: 通过打开和关闭一个LED来访问这个简单的Web服务器

• UDP NTP Client: 通过UDP查询网络时间协议（NTP）服务器。

• WiFi Chat Server: 建立一个简单的聊天服务器。

• WiFi Web Client: 连接到一个远程服务器。

• WiFi Web Client Repeating: 反复做HTTP请求到服务器。

• WiFi Web Server: 通过模拟输入值来服务一个来自WIfi无线扩展块的网页。

• WiFi Send Receive UDP String: 发送和接收UDP字符串。