diff options
Diffstat (limited to 'libraries/WiFi/examples/WiFiWebClientRepeating')
-rw-r--r-- | libraries/WiFi/examples/WiFiWebClientRepeating/WiFiWebClientRepeating.ino | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/libraries/WiFi/examples/WiFiWebClientRepeating/WiFiWebClientRepeating.ino b/libraries/WiFi/examples/WiFiWebClientRepeating/WiFiWebClientRepeating.ino new file mode 100644 index 0000000..96eb628 --- /dev/null +++ b/libraries/WiFi/examples/WiFiWebClientRepeating/WiFiWebClientRepeating.ino @@ -0,0 +1,138 @@ +/* + Repeating Wifi Web client + + This sketch connects to a a web server and makes a request + using an Arduino Wifi shield. + + Circuit: + * Wifi shield attached to pins 10, 11, 12, 13 + + created 23 April 2012 + modifide 31 May 2012 + by Tom Igoe + + http://arduino.cc/en/Tutorial/WifiWebClientRepeating + This code is in the public domain. + */ + +#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; + +// Initialize the Wifi client library +WiFiClient client; + +// server address: +char server[] = "www.arduino.cc"; +//IPAddress server(64,131,82,241); + +unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds +boolean lastConnected = false; // state of the connection last time through the main loop +const unsigned long postingInterval = 10*1000; // delay between updates, in milliseconds + +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); + + // wait 10 seconds for connection: + delay(10000); + } + // you're connected now, so print out the status: + printWifiStatus(); +} + +void loop() { + // if there's incoming data from the net connection. + // send it out the serial port. This is for debugging + // purposes only: + while (client.available()) { + char c = client.read(); + Serial.write(c); + } + + // if there's no net connection, but there was one last time + // through the loop, then stop the client: + if (!client.connected() && lastConnected) { + Serial.println(); + Serial.println("disconnecting."); + client.stop(); + } + + // if you're not connected, and ten seconds have passed since + // your last connection, then connect again and send data: + if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) { + httpRequest(); + } + // store the state of the connection for next time through + // the loop: + lastConnected = client.connected(); +} + +// this method makes a HTTP connection to the server: +void httpRequest() { + // if there's a successful connection: + if (client.connect(server, 80)) { + Serial.println("connecting..."); + // send the HTTP PUT request: + client.println("GET /latest.txt HTTP/1.1"); + client.println("Host: www.arduino.cc"); + client.println("User-Agent: arduino-ethernet"); + client.println("Connection: close"); + client.println(); + + // note the time that the connection was made: + lastConnectionTime = millis(); + } + else { + // if you couldn't make a connection: + Serial.println("connection failed"); + Serial.println("disconnecting."); + client.stop(); + } +} + + +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"); +} + + + + + + |