139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
/*
|
|
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 12 Aug 2013
|
|
by Soohwan Kim
|
|
Modified 18 Aug 2015
|
|
by Vassilis Serasidis
|
|
|
|
=========================================================
|
|
Ported to STM32F103 on 18 Aug 2015 by Vassilis Serasidis
|
|
|
|
<---- Pinout ---->
|
|
W5x00 <--> STM32F103
|
|
SS <--> PA4 <--> BOARD_SPI1_NSS_PIN
|
|
SCK <--> PA5 <--> BOARD_SPI1_SCK_PIN
|
|
MISO <--> PA6 <--> BOARD_SPI1_MISO_PIN
|
|
MOSI <--> PA7 <--> BOARD_SPI1_MOSI_PIN
|
|
=========================================================
|
|
|
|
|
|
http://arduino.cc/en/Tutorial/WebClientRepeating
|
|
This code is in the public domain.
|
|
|
|
*/
|
|
|
|
#include <SPI.h>
|
|
#include <Ethernet_STM.h>
|
|
|
|
// assign a MAC address for the ethernet controller.
|
|
// fill in your address here:
|
|
#if defined(WIZ550io_WITH_MACADDRESS) // Use assigned MAC address of WIZ550io
|
|
;
|
|
#else
|
|
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
|
|
#endif
|
|
// fill in an available IP address on your network here,
|
|
// for manual configuration:
|
|
// If you don't specify the IP address, DHCP is used(only in Arduino 1.0 or later).
|
|
// fill in an available IP address on your network here,
|
|
IPAddress ip(1,1,1,1);
|
|
IPAddress gwip(1,1,1,1);
|
|
IPAddress snip(1,1,1,1);
|
|
IPAddress myDns(1,1,1,1);
|
|
|
|
|
|
// initialize the library instance:
|
|
EthernetClient client;
|
|
|
|
char server[] = "www.arduino.cc";
|
|
|
|
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 = 60*1000; // delay between updates, in milliseconds
|
|
|
|
|
|
void setup() {
|
|
// start serial port:
|
|
Serial.begin(9600);
|
|
// give the ethernet module time to boot up:
|
|
delay(1000);
|
|
// start the Ethernet connection using a fixed IP address and DNS server:
|
|
#if defined(WIZ550io_WITH_MACADDRESS)
|
|
Ethernet.begin(ip, myDns, gwip, snip);
|
|
#else
|
|
Ethernet.begin(mac, ip, myDns, gwip, snip);
|
|
#endif
|
|
|
|
// print the Ethernet board/shield's IP address:
|
|
Serial.print("My IP address: ");
|
|
Serial.println(Ethernet.localIP());
|
|
}
|
|
|
|
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.print(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();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|