You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.6 KiB
Plaintext
62 lines
1.6 KiB
Plaintext
/*
|
|
* Web Server
|
|
*
|
|
* A simple web server that shows the value of the analog input pins.
|
|
*/
|
|
|
|
#include <Ethernet.h>
|
|
|
|
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
|
|
byte ip[] = { 10, 0, 0, 177 };
|
|
|
|
Server server(80);
|
|
|
|
void setup()
|
|
{
|
|
Ethernet.begin(mac, ip);
|
|
server.begin();
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
Client client = server.available();
|
|
if (client) {
|
|
// an http request ends with a blank line
|
|
boolean current_line_is_blank = true;
|
|
while (client.connected()) {
|
|
if (client.available()) {
|
|
char c = client.read();
|
|
// if we've gotten to the end of the line (received a newline
|
|
// character) and the line is blank, the http request has ended,
|
|
// so we can send a reply
|
|
if (c == '\n' && current_line_is_blank) {
|
|
// send a standard http response header
|
|
client.println("HTTP/1.1 200 OK");
|
|
client.println("Content-Type: text/html");
|
|
client.println();
|
|
|
|
// output the value of each analog input pin
|
|
for (int i = 0; i < 6; i++) {
|
|
client.print("analog input ");
|
|
client.print(i);
|
|
client.print(" is ");
|
|
client.print(analogRead(i));
|
|
client.println("<br />");
|
|
}
|
|
break;
|
|
}
|
|
if (c == '\n') {
|
|
// we're starting a new line
|
|
current_line_is_blank = true;
|
|
} else if (c != '\r') {
|
|
// we've gotten a character on the current line
|
|
current_line_is_blank = false;
|
|
}
|
|
}
|
|
}
|
|
// give the web browser time to receive the data
|
|
delay(1);
|
|
client.stop();
|
|
}
|
|
}
|