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Diffstat (limited to 'libraries/WiFi/examples/SimpleWebServerWiFi')
-rw-r--r-- | libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino b/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino new file mode 100644 index 0000000..cdb4e62 --- /dev/null +++ b/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino @@ -0,0 +1,129 @@ +/* + WiFi Web Server LED Blink + + A simple web server that lets you blink an LED via the web. + This sketch will print the IP address of your WiFi Shield (once connected) + to the Serial monitor. From there, you can open that address in a web browser + to turn on and off the LED on pin 9. + + If the IP address of your shield is yourAddress: + http://yourAddress/H turns the LED on + http://yourAddress/L turns it off + + This example is written for a network using WPA encryption. For + WEP or WPA, change the Wifi.begin() call accordingly. + + Circuit: + * WiFi shield attached + * LED attached to pin 9 + + created 25 Nov 2012 + by Tom Igoe + */ +#include <SPI.h> +#include <WiFi.h> + +char ssid[] = "yourNetwork"; // your network SSID (name) +char pass[] = "secretPassword"; // your network password +int keyIndex = 0; // your network key Index number (needed only for WEP) + +int status = WL_IDLE_STATUS; +WiFiServer server(80); + +void setup() { + Serial.begin(9600); // initialize serial communication + pinMode(9, OUTPUT); // set the LED pin mode + + // check for the presence of the shield: + if (WiFi.status() == WL_NO_SHIELD) { + Serial.println("WiFi shield not present"); + while(true); // don't continue + } + + // attempt to connect to Wifi network: + while ( status != WL_CONNECTED) { + Serial.print("Attempting to connect to Network named: "); + Serial.println(ssid); // print the network name (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); + } + server.begin(); // start the web server on port 80 + printWifiStatus(); // you're connected now, so print out the status +} + + +void loop() { + WiFiClient client = server.available(); // listen for incoming clients + + if (client) { // if you get a client, + Serial.println("new client"); // print a message out the serial port + String currentLine = ""; // make a String to hold incoming data from the client + while (client.connected()) { // loop while the client's connected + if (client.available()) { // if there's bytes to read from the client, + char c = client.read(); // read a byte, then + Serial.write(c); // print it out the serial monitor + if (c == '\n') { // if the byte is a newline character + + // if the current line is blank, you got two newline characters in a row. + // that's the end of the client HTTP request, so send a response: + if (currentLine.length() == 0) { + // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK) + // and a content-type so the client knows what's coming, then a blank line: + client.println("HTTP/1.1 200 OK"); + client.println("Content-type:text/html"); + client.println(); + + // the content of the HTTP response follows the header: + client.print("Click <a href=\"/H\">here</a> turn the LED on pin 9 on<br>"); + client.print("Click <a href=\"/L\">here</a> turn the LED on pin 9 off<br>"); + + // The HTTP response ends with another blank line: + client.println(); + // break out of the while loop: + break; + } + else { // if you got a newline, then clear currentLine: + currentLine = ""; + } + } + else if (c != '\r') { // if you got anything else but a carriage return character, + currentLine += c; // add it to the end of the currentLine + } + + // Check to see if the client request was "GET /H" or "GET /L": + if (currentLine.endsWith("GET /H")) { + digitalWrite(9, HIGH); // GET /H turns the LED on + } + if (currentLine.endsWith("GET /L")) { + digitalWrite(9, LOW); // GET /L turns the LED off + } + } + } + // close the connection: + client.stop(); + Serial.println("client disonnected"); + } +} + +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"); + // print where to go in a browser: + Serial.print("To see this page in action, open a browser to http://"); + Serial.println(ip); +} |