Hi Sir,
I am using Arduino Ethernet Library 2.0.2. In that, I am using the Telnet Client Example code. I had attached the code for your reference. In that code, i am able to receive the Data from the PC ( Telnet Server) and the same was able to see in my serial com Port. But I am not able to receive data from Arduino to PC (Hercules) Software. In the PC side, I am using TCP Server (Hercules Utility Software) (HW Group).
Hardware Boards Used: Original Arduino Mega + Original Arduino Ethernet Shield 2 Board with W5500 Wiznet Controller
Telnet TCP_IP_Client_Code Example:
/*
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 <Ethernet2.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xA8, 0x61, 0x0A, 0xAE, 0xE0, 0x81 //Mac address of the Shield
};
IPAddress ip(192, 168, 100, 48); //IP Address of the shield
// Enter the IP address of the server you're connecting to:
IPAddress server(192, 168, 100, 46); //IP Address of the Server
// 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, 23)) {
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);
}
}
I understand that , In the telnet example, this below code is to send the data to the PC . But i am not able to receive the Data in the PC.
// 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);
}
}
Kindly let us know what could be Problem. Kindly help