Embedded Web Server, with DynDNS client

Projects General Guidance
1

I have a application using a 3G router with a Ethernet Port and Ardunio Webserver, to give readings of analoug inputs (volts, amps, temp) to monitor remote solar powered equipment.

looking to set up a Arduino Webserver and provide a DynDNS URL as the 3G router does not support a fixed IP address.

Is there any DynDNS function for using the Ethernet Sheld, with a dynamic IP public address.

2

Easy peasy. In your loop, every x millis ( ala blink without delay example), send the update to dyndns. Example code here: My Dyn Account

Mind the mills() overflow if this is going to be running a long time like most web servers.

3

Hello.This code for this work is ok?

/**********************************************************
Publish IP by dyndns.com protocol

<hostname>	the hostname (e.g. example.dyndns-ip.com

<pwd64base>	the phrase username:password base64 encoded

<ip>		the IP wich should be published
**********************************************************/

//Proposed by martines.marco@gmail.com
//Waiting for confirmation from boris.landoni@gmail.com

byte GSM::PublishIP(char *hostname, char *pwd64base, char*ip)
{
  SendATCmdWaitResp("AT+CIPSEND", 10000, 1000,">", 3);
  delay(1000);

  int ret_val=0;
  char cmd1[150];
  char cmd2[50];
  char cmd3[2];
  cmd3[0]=0x1a;
  cmd3[1]='\0';

  strcpy(cmd1, "GET /nic/update?hostname=");
  strcat(cmd1, hostname);
  strcat(cmd1, "&myip=");
  strcat(cmd1, ip);
  strcat(cmd1, " HTTP/1.0");
  
  strcpy(cmd2, "Authorization: Basic ");
  strcat(cmd2, pwd64base);


  SimpleWrite(cmd1);
  SimpleWrite("Host: members.dyndns.org");
  SimpleWrite(cmd2);
  SimpleWrite("User-Agent: GSM-Shield for Arduino");
  SimpleWrite("");

  SimpleWrite(cmd3); 
}

i find it there: http://gsm-shield-arduino.googlecode.com/svn-history/r19/branches/ArduinoVer/GSM_Shield.cpp

4

Hi, in the code quoted in the previous post appears my email address.... could you modify in order to hide it (both emails)? Thank you,
Marco

5

Dyndns isn't free no more...let's go change! See Integrate with No-IP DDNS - API Information