Hello I have some little problem with trying Arduino Webserver example. Where the values of analog pins should be displayed in web browser.
I am using ethernet shield with w5100, Arduino Mega 2560 and Arduino IDE 1.6.4.
This is the code I am trying to use:
/*
Web Server
A simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* Analog inputs attached to pins A0 through A5 (optional)
created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe
*/
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(100, 87, 203, 77);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
// output the value of each analog input pin
for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("analog input ");
client.print(analogChannel);
client.print(" is ");
client.print(sensorReading);
client.println("
");
}
client.println("</html>");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
}
else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disconnected");
}
}
Everything is set properly... IP adress is adapted to my local network and MAC adress is unique too.
When I record this sketch to arduino and open the Serial monitor, this will appear:
server is at 0.0.0.0
And when I type IP adress that was manully assigned to my Arduino, the web browser tells: "This webpage is not available ERR_CONNECTION_TIMED_OUT"
First I thought something is wrong with IP adress of my Arduino. But then I tried to ping Arduino with command line:
ping 100.87.203.77
Pinging 100.87.203.77 with 32 bytes of data:
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Ping statistics for 100.87.203.77:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-secons:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
So there is connectivity between my PC and Arduino (Arduino is connected to my router). And the TX and RX leds are blinking during pinging, so this IP is really assigned to my Arduino. But Serial monitor shows wrong IP and browser does not show the the page with values.
Arduino is powered with adapter and with power from USB. SD card is removed. And other Ethernet sketches work properly.
Is there anybody who knows where is the problem? :c