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1  Using Arduino / Networking, Protocols, and Devices / Re: EthernetServer + EthernetClient on: November 24, 2013, 02:00:34 am
Quote
I test with some debug and this line (if (email.connect(smtp, 587)) {) never is true.

Have you tried port 25 instead of 587? does the email work stand alone using port 587I've got some combined http client/server code that seems to work in combination.

Hi!

  I will start again tomorrow. I very tired now. Now is 5AM and need some rest.

  With this code I can send email with no problem:

  Thank you!

 
Code:
#include <SPI.h>
#include <Ethernet.h>

byte mac[] = { 0x00, 0x1F, 0xC6, 0xD5, 0x0B, 0x1A };
byte server[] = { 189, 124, 16, 3 }; // Mail server address  (this is for yahoo's mobile smtp)

EthernetClient client;  // yahoo's mobile smtp server ip/port

void setup()
{
 Ethernet.begin(mac);
 Serial.begin(9600);
 
 delay(1000);
 
 Serial.println("connecting...");
 
 if (client.connect(server, 587)) {
   Serial.println("connected");
   client.println("EHLO MYSERVER");
   client.println("AUTH PLAIN xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=");  // replace the **'s with your auth info from the perl script.
   client.println("MAIL FROM:<ismael@xxxxxxxxxxxxxxxxcom.br>");
   client.println("RCPT TO:<ismael@xxxxxxxxxxxxxxxxxx.com.br>");
   client.println("DATA");
   client.println("From: Ismael Carelli <ismael@net-rosas.com.br>");
   client.println("TO: Ismael Carelli <ismael@barbacena.com.br>");
   client.println("SUBJECT: GERADOR FALHA AC");
   client.println();
   client.println("This is the body.");
   client.println("This is another line of the body.");
   client.println(".");
   client.println("quit");
 } else {
   Serial.println("connection failed");
 }
}

void loop()
{
 if (client.available()) {
   char c = client.read();
   Serial.print(c);
 }
 
 if (!client.connected()) {
   Serial.println();
   Serial.println("disconnecting.");
   client.stop();
   for(;;)
     ;
 }
}
2  Using Arduino / Networking, Protocols, and Devices / Re: EthernetServer + EthernetClient on: November 24, 2013, 12:44:34 am
For testing, have you tried simplifying the code by skipping the LED stuff and just printing what is received by the telnet server back to the serial monitor?

Hi!

I am testing with this simplified code.

I test with some debug and this line (if (email.connect(smtp, 587)) {) never is true.

Thanks,
Ismael

Code:
//  Telnet server reference http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1278686415
//
#include <SPI.h>
#include <Ethernet.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte subnet[] = {255,255,255,0};
byte ip[] = {10, 1, 2, 90 };
byte gateway[] = {10, 1, 2, 254 };
byte smtp[] = { 189, 124, 16, 3 };

#define textBuffSize 9 //length of longest command string plus two spaces for CR + LF
char textBuff[textBuffSize]; //someplace to put received text
int charsReceived = 0;

boolean connectFlag = 0; //we'll use a flag separate from client.connected
//so we can recognize when a new connection has been created
unsigned long timeOfLastActivity; //time in milliseconds of last activity
unsigned long allowedConnectTime = 300000; //30 seconds

EthernetServer server(23);
EthernetClient client;
EthernetClient email;

void setup() {
  Ethernet.begin(mac, ip, gateway, subnet);
  server.begin();
}
  
void loop() {
  // look to see if a new connection is created,
  // print welcome message, set connected flag
  if (server.available() && !connectFlag) {
    connectFlag = 1;
    client = server.available();
    client.println("\nWelcome to the Arduino Notifier");
    client.println("? for help");
    printPrompt();
  }
  // check to see if text received
  if (client.connected() && client.available()) getReceivedText();
  // check to see if connection has timed out
  if (connectFlag) checkConnectionTimeout();
}

void printPrompt()
{
  timeOfLastActivity = millis();
  client.flush();
  charsReceived = 0; //count of characters received
  client.print("\n>");
}

void checkConnectionTimeout()
{
  if(millis() - timeOfLastActivity > allowedConnectTime) {
    client.println();
    client.println("Timeout disconnect.");
    client.stop();
    connectFlag = 0;
  }
}

void getReceivedText()
{
  char c;
  int charsWaiting;
  // copy waiting characters into textBuff
  //until textBuff full, CR received, or no more characters
  charsWaiting = client.available();
  do {
    c = client.read();
    textBuff[charsReceived] = c;
    charsReceived++;
    charsWaiting--;
  }
  while(charsReceived <= textBuffSize && c != 0x0d && charsWaiting > 0);
  //if CR found go look at received text and execute command
  if(c == 0x0d) {
    parseReceivedText();
    // after completing command, print a new prompt
    printPrompt();
  }
  // if textBuff full without reaching a CR, print an error message
  if(charsReceived >= textBuffSize) {
    client.println();
    printErrorMessage();
    printPrompt();
  }
  // if textBuff not full and no CR, do nothing else;
  // go back to loop until more characters are received
}

void parseReceivedText()
{
  // look at first character and decide what to do
  switch (textBuff[0]) {
    case 'x' : checkCloseConnection();   break;
    case '@' : client.println("Enviando e-mail"); sendEmail(); break;
    case 0x0d :  break;  //ignore a carriage return
    default: printErrorMessage();  break;
  }
 }

void printErrorMessage()
{
  client.println("Unrecognized command.  ? for help.");
}

void checkCloseConnection()
{
  if (textBuff[1] == 0x0d) {
    client.println("\nBye.\n");
    client.stop();
    connectFlag = 0;
  }
   else
    printErrorMessage();
}

void sendEmail()
{
 if (email.connect(smtp, 587)) {
   client.println("connected");
   email.println("EHLO MYSERVER");
   email.println("AUTH PLAIN xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=");  // replace the **'s with your auth info from the perl script.
   email.println("MAIL FROM:<ismael@net-rosas.com.br>");
   email.println("RCPT TO:<ismael@barbacena.com.br>");
   email.println("DATA");
   email.println("From: Ismael Carelli <ismael@net-rosas.com.br>");
   email.println("TO: Ismael Carelli <ismael@barbacena.com.br>");
   email.println("SUBJECT: GERADOR FALHA AC");
   email.println();
   email.println("This is the body.");
   email.println("This is another line of the body.");
   email.println(".");
   email.println("quit");
   email.stop();
 } else {
   client.println("connection failed");
 }

}
3  Using Arduino / Networking, Protocols, and Devices / EthernetServer + EthernetClient on: November 23, 2013, 11:33:44 pm
Hi!

  I am trying to make a telnet server and have some code to connect to a email server and send an email.
  The mail code is working fine as stand alone. If I am connected in the Telnet Server I can't connect to mail server and send commands.
  I am using a RGB LED just to test commands and the '@' execute the function to send email.

  I try to stop the first client connection (telnet) and wait about 5 minutes before trying to send e-mail (a coded a button) and don't work.

  Thanks for any help or idea.

Code:
//  Telnet server reference http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1278686415
//
#include <SPI.h>
#include <Ethernet.h>

int ledState = 0;
int red_value = 0;
int green_value = 0;
int blue_value = 0;
long previousMillis = 0;
long interval = 200;
int currentColor = 0;
int lastcolor = 1;
int currentState = 0;

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte subnet[] = {255,255,255,0};
byte ip[] = {10, 1, 2, 90 };
byte gateway[] = {10, 1, 2, 254 };
byte smtp[] = { 189, 124, 16, 3 };

#define textBuffSize 9 //length of longest command string plus two spaces for CR + LF
char textBuff[textBuffSize]; //someplace to put received text
int charsReceived = 0;

boolean connectFlag = 0; //we'll use a flag separate from client.connected
//so we can recognize when a new connection has been created
unsigned long timeOfLastActivity; //time in milliseconds of last activity
unsigned long allowedConnectTime = 300000; //30 seconds

EthernetServer server(23);
EthernetClient client;
EthernetClient email;

#define LED_PIN_RED 3
#define LED_PIN_GREEN 5
#define LED_PIN_BLUE 6

void setup() {
//  Serial.begin(9600); // Turn on debug to serial
  Ethernet.begin(mac, ip, gateway, subnet);
  server.begin();
}
 
void loop() {
  // look to see if a new connection is created,
  // print welcome message, set connected flag
  if (server.available() && !connectFlag) {
    connectFlag = 1;
    client = server.available();
    client.println("\nWelcome to the Arduino Notifier");
    client.println("? for help");
    printPrompt();
  }
  // check to see if text received
  if (client.connected() && client.available()) getReceivedText();
  // check to see if connection has timed out
  if (connectFlag) checkConnectionTimeout();
  updateLED();
}

void updateLED(){
  unsigned long currentMillis = millis();
   if(currentMillis - previousMillis > interval) {
    // save the last time you blinked the LED
   previousMillis = currentMillis;   
    // if the LED is off turn it on and vice-versa:
    if (ledState == 0)
      ledState = 1;
    else
      ledState = 0;
    // set the LED with the ledState of the variable:
    if (currentColor != 6)
      setLED(currentColor, ledState);
    else {
      if (ledState == 1) {
        lastcolor++;
        if (lastcolor > 3) lastcolor = 1;
      }
      setLED(lastcolor, ledState);
    }
  }
}

void setLED(int color, int led_state){
  if (led_state==1){
 
  switch (color) {
    case 0 : red_value=0; green_value=0; blue_value=0; break;
    case 1 : red_value=255; green_value=0; blue_value=0; break;
    case 2 : red_value=0; green_value=255; blue_value=0; break;
    case 3 : red_value=0; green_value=0; blue_value=255; break;
    case 4 : red_value=255; green_value=255; blue_value=0; break;
    case 5 : red_value=255; green_value=255; blue_value=255; break;
    default: client.println("Unknown color value"); break;
  }}
  else{
  red_value=0; green_value=0; blue_value=0;
  }
  analogWrite(LED_PIN_RED, red_value);
  analogWrite(LED_PIN_GREEN, green_value);
  analogWrite(LED_PIN_BLUE, blue_value);
}

void printPrompt()
{
  timeOfLastActivity = millis();
  client.flush();
  charsReceived = 0; //count of characters received
  client.print("\n>");
}

void checkConnectionTimeout()
{
  if(millis() - timeOfLastActivity > allowedConnectTime) {
    client.println();
    client.println("Timeout disconnect.");
    client.stop();
    connectFlag = 0;
  }
}

void getReceivedText()
{
  char c;
  int charsWaiting;
  // copy waiting characters into textBuff
  //until textBuff full, CR received, or no more characters
  charsWaiting = client.available();
  do {
    c = client.read();
    textBuff[charsReceived] = c;
    charsReceived++;
    charsWaiting--;
  }
  while(charsReceived <= textBuffSize && c != 0x0d && charsWaiting > 0);
  //if CR found go look at received text and execute command
  if(c == 0x0d) {
    parseReceivedText();
    // after completing command, print a new prompt
    printPrompt();
  }
  // if textBuff full without reaching a CR, print an error message
  if(charsReceived >= textBuffSize) {
    client.println();
    printErrorMessage();
    printPrompt();
  }
  // if textBuff not full and no CR, do nothing else;
  // go back to loop until more characters are received
}

void parseReceivedText()
{
  // look at first character and decide what to do
  switch (textBuff[0]) {
    case 'b' : blinkLED(); break;
    case 'o' : currentColor=0; client.println("Off");break; //turn led off
    case 'x' : checkCloseConnection();   break;
    case 's' : getStatus();             break;
    case '?' : printHelpMessage(); break;
    case '@' : client.println("Enviando e-mail"); sendEmail(); break;
    case 0x0d :   break;  //ignore a carriage return
    default: printErrorMessage();   break;
  }
 }

void getStatus(){
  switch (currentColor) {
    case 0 : client.println("Off"); break;
    case 1 : client.println("Blink Red"); break;
    case 2 : client.println("Blink Green"); break;
    case 3 : client.println("Blink Blue"); break;
    case 4 : client.println("Blink Yellow"); break;
    case 5 : client.println("Blink White"); break;
    case 6 : client.println("Blink All"); break;
    default: client.println("Unknown color value"); break;
  }
}

void blinkLED()
{
  switch (textBuff[1]) {
    case 'r' : currentColor=1; currentState=0; client.println("Blink Red"); break;
    case 'g' : currentColor=2; currentState=0; client.println("Blink Green"); break;
    case 'b' : currentColor=3; currentState=0; client.println("Blink Blue");break;
    case 'y' : currentColor=4; currentState=0; client.println("Blink Yellow");break;
    case 'w' : currentColor=5; currentState=0; client.println("Blink White");break;
    case 'a' : currentColor=6; currentState=0; client.println("Blink All"); break;
    default: client.println("Unknown color value"); break;
  }
}

void printErrorMessage()
{
  client.println("Unrecognized command.  ? for help.");
}

void checkCloseConnection()
{
  if (textBuff[1] == 0x0d) {
    client.println("\nBye.\n");
    client.stop();
    connectFlag = 0;
  }
   else
    printErrorMessage();
}

void printHelpMessage()
{
  client.println("Commands:\n");
  client.println("  br -blink red");
  client.println("  bg -blink green");
  client.println("  bb -blink blue");
  client.println("  by -blink yellow");
  client.println("  bw -blink white");
  client.println("  ba -blink all");
  client.println("  @  -send e-mail");
  client.println("  o  -led off");
  client.println("  s  -return current led color");
  client.println("  x  -close connection");
  client.println("  ?  -print this help message");
}

void sendEmail()
{
 if (email.connect(smtp, 587)) {
   client.println("connected");
   email.println("EHLO MYSERVER");
   email.println("AUTH PLAIN xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=");  // replace the **'s with your auth info from the perl script.
   email.println("MAIL FROM:<ismael@net-rosas.com.br>");
   email.println("RCPT TO:<ismael@barbacena.com.br>");
   email.println("DATA");
   email.println("From: Ismael Carelli <ismael@xxxxx.com.br>");
   email.println("TO: Ismael Carelli <ismael@xxxxxx.com.br>");
   email.println("SUBJECT: This is the subject");
   email.println();
   email.println("This is the body.");
   email.println("This is another line of the body.");
   email.println(".");
   email.println("quit");
   email.stop();
 } else {
   client.println("connection failed");
 }

}
4  Using Arduino / Programming Questions / 1mhz oscillator on: June 19, 2011, 05:23:45 pm
Hi!

  Anyone know how can I generate 1Mhz signal using Duemilanove?

  I need to set fuses of a Atmege64A.

  Thanks.

[]'s
Ismael
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