أنا أشغل مثال WiFiWebClient الذي يأتي محملاً مسبقًا بـ Arduino
IDE 1.6.7. أستخدم لوح Arduino Uno مع WiFi Shield Model R3.
/*
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
#include
#include
char ssid[] = "Vanilla Sky";// your network SSID (name)
char pass[] = "mypass"; //your network password (use for WPA, or use as key for WEP)
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(74,125,232,128); //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 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);
}
String fv = WiFi.firmwareVersion();
if (fv != "1.1.0") {
Serial.println("Please upgrade the firmware");
}
//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);
//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) == 0) {
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: keep-alive");
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");
}
يحصل على درع WiFi متصل بـ Vanilla Sky
ولكنه لا يجلب
طلب HTTP (انظر الصورة أدناه). ما هو الخطأ هنا؟
