mirror of
https://github.com/esp8266/Arduino.git
synced 2025-11-03 14:33:37 +03:00
95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
/*
|
|
Telnet client
|
|
|
|
This sketch connects to a a telnet server (http://www.google.com)
|
|
using an Arduino Wiznet Ethernet shield. You'll need a telnet server
|
|
to test this with.
|
|
Processing's ChatServer example (part of the network library) works well,
|
|
running on port 10002. It can be found as part of the examples
|
|
in the Processing application, available at
|
|
http://processing.org/
|
|
|
|
Circuit:
|
|
* Ethernet shield attached to pins 10, 11, 12, 13
|
|
|
|
created 14 Sep 2010
|
|
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(192, 168, 1, 177);
|
|
|
|
// Enter the IP address of the server you're connecting to:
|
|
IPAddress server(1, 1, 1, 1);
|
|
|
|
// Initialize the Ethernet client library
|
|
// with the IP address and port of the server
|
|
// that you want to connect to (port 23 is default for telnet;
|
|
// if you're using Processing's ChatServer, use port 10002):
|
|
EthernetClient client;
|
|
|
|
void setup() {
|
|
// start the Ethernet connection:
|
|
Ethernet.begin(mac, ip);
|
|
// Open serial communications and wait for port to open:
|
|
Serial.begin(9600);
|
|
while (!Serial) {
|
|
; // wait for serial port to connect. Needed for Leonardo only
|
|
}
|
|
|
|
|
|
// give the Ethernet shield a second to initialize:
|
|
delay(1000);
|
|
Serial.println("connecting...");
|
|
|
|
// if you get a connection, report back via serial:
|
|
if (client.connect(server, 10002)) {
|
|
Serial.println("connected");
|
|
}
|
|
else {
|
|
// if you didn't get a connection to the server:
|
|
Serial.println("connection failed");
|
|
}
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
// if there are incoming bytes available
|
|
// from the server, read them and print them:
|
|
if (client.available()) {
|
|
char c = client.read();
|
|
Serial.print(c);
|
|
}
|
|
|
|
// as long as there are bytes in the serial queue,
|
|
// read them and send them out the socket if it's open:
|
|
while (Serial.available() > 0) {
|
|
char inChar = Serial.read();
|
|
if (client.connected()) {
|
|
client.print(inChar);
|
|
}
|
|
}
|
|
|
|
// if the server's disconnected, stop the client:
|
|
if (!client.connected()) {
|
|
Serial.println();
|
|
Serial.println("disconnecting.");
|
|
client.stop();
|
|
// do nothing:
|
|
while (true);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|