arduino stuffs
Diffstat (limited to 'libraries/Ethernet/examples/WebClientRepeating/WebClientRepeating.ino')
| -rw-r--r-- | libraries/Ethernet/examples/WebClientRepeating/WebClientRepeating.ino | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/libraries/Ethernet/examples/WebClientRepeating/WebClientRepeating.ino b/libraries/Ethernet/examples/WebClientRepeating/WebClientRepeating.ino new file mode 100644 index 0000000..6607f43 --- /dev/null +++ b/libraries/Ethernet/examples/WebClientRepeating/WebClientRepeating.ino @@ -0,0 +1,130 @@ +/* + Repeating Web client + + This sketch connects to a a web server and makes a request + using a Wiznet Ethernet shield. You can use the Arduino Ethernet shield, or + the Adafruit Ethernet shield, either one will work, as long as it's got + a Wiznet Ethernet module on board. + + This example uses DNS, by assigning the Ethernet client with a MAC address, + IP address, and DNS address. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 19 Apr 2012 + by Tom Igoe + modified 21 Jan 2014 + by Federico Vanzati + + http://www.arduino.cc/en/Tutorial/WebClientRepeating + This code is in the public domain. + + */ + +#include <SPI.h> +#include <Ethernet.h> + +// assign a MAC address for the ethernet controller. +// fill in your address here: +byte mac[] = { + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED +}; +// Set the static IP address to use if the DHCP fails to assign +IPAddress ip(192, 168, 0, 177); +IPAddress myDns(192, 168, 0, 1); + +// initialize the library instance: +EthernetClient client; + +char server[] = "www.arduino.cc"; // also change the Host line in httpRequest() +//IPAddress server(64,131,82,241); + +unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds +const unsigned long postingInterval = 10*1000; // delay between updates, in milliseconds + +void setup() { + // You can use Ethernet.init(pin) to configure the CS pin + //Ethernet.init(10); // Most Arduino shields + //Ethernet.init(5); // MKR ETH shield + //Ethernet.init(0); // Teensy 2.0 + //Ethernet.init(20); // Teensy++ 2.0 + //Ethernet.init(15); // ESP8266 with Adafruit Featherwing Ethernet + //Ethernet.init(33); // ESP32 with Adafruit Featherwing Ethernet + + // start serial port: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + // start the Ethernet connection: + Serial.println("Initialize Ethernet with DHCP:"); + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // Check for Ethernet hardware present + if (Ethernet.hardwareStatus() == EthernetNoHardware) { + Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :("); + while (true) { + delay(1); // do nothing, no point running without Ethernet hardware + } + } + if (Ethernet.linkStatus() == LinkOFF) { + Serial.println("Ethernet cable is not connected."); + } + // try to congifure using IP address instead of DHCP: + Ethernet.begin(mac, ip, myDns); + Serial.print("My IP address: "); + Serial.println(Ethernet.localIP()); + } else { + Serial.print(" DHCP assigned IP "); + Serial.println(Ethernet.localIP()); + } + // give the Ethernet shield a second to initialize: + delay(1000); +} + +void loop() { + // if there's incoming data from the net connection. + // send it out the serial port. This is for debugging + // purposes only: + if (client.available()) { + char c = client.read(); + Serial.write(c); + } + + // if ten seconds have passed since your last connection, + // then connect again and send data: + if (millis() - lastConnectionTime > postingInterval) { + httpRequest(); + } + +} + +// this method makes a HTTP connection to the server: +void httpRequest() { + // close any connection before send a new request. + // This will free the socket on the WiFi shield + client.stop(); + + // if there's a successful connection: + if (client.connect(server, 80)) { + Serial.println("connecting..."); + // send the HTTP GET 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"); + } +} + + + + |