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1  Using Arduino / Networking, Protocols, and Devices / Re: EthernetShield (without UTP cable inserted) on: November 17, 2013, 03:57:14 am
It does, at least mine does. It takes over a minute for the dhcp request to time out and return the fail.

I've timed it and it takes well over a minute (1 min 56) before it times out. Is there a way to speed this up?
2  Using Arduino / Networking, Protocols, and Devices / EthernetShield (without UTP cable inserted) on: November 16, 2013, 11:14:52 am
Hi,

Below is my setup code:
Code:
void setup()
{
  // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0)
  {
    Serial.println("Failed to configure Ethernet using DHCP");

    while(true);
  }
  Udp.begin(localPort);
  Serial.flush();
  Serial.begin(9600);
  Serial1.flush();
  Serial1.begin(9600);
  RFID.flush();
  RFID.begin(9600);


  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);


  pinMode(53, OUTPUT);

  SD.begin(4);
  UpdateSaldo();


}

It works with the UTP cable connected; it connects to the DHCP server gets an IP address etc and continues with the program. However when the UTP cable is disconnected or the router is offline it will not do anything (I would figure that it then would print to the serialport "Failed to configure.." etc. Why is this not the case?
3  Using Arduino / Programming Questions / Re: Reading an Internet String on: July 24, 2013, 07:38:08 am
Serial ouput:

Code:
<0>10</0>
<1>25</1>
<2>0</2>
<3>0</3>
<0></0>
4  Using Arduino / Programming Questions / Re: Reading an Internet String on: July 24, 2013, 07:33:39 am
Never mind, I read over the obvious mistake. http_response is ofcourse the parsed version of the orginal so calling it again will detect nothing.
5  Using Arduino / Programming Questions / Reading an Internet String on: July 24, 2013, 07:30:35 am
Hi guys,

I have the following code:

Code:
void antwoord()
{


  for (int t=0; t <= 4; t++){

    String user = String(t);
    String ein = "<";
    String zwei = user;
    String drei = ">";
    String xxx = "/";
    String response = ein + zwei + drei;
    String endresponse = ein + xxx + zwei  + drei;
   
    Serial.print(response);
    Serial.println(endresponse);
    Serial.println(http_response);

    if((http_response.indexOf(response) > -1 )&&(http_response.indexOf(endresponse) > -1 )){
      // We check if the <arduino></arduino> are there.
      response_start = http_response.indexOf(response)+3;
      // Where it begins, the 9 is the length of ' <arduino> ',
      // since we dont want it to appear in the response.
      response_end = http_response.indexOf(endresponse);
      // Where it ends
      http_response = http_response.substring(response_start,response_end);
      // We keep only the response of the website
      Serial.println("Website response : ");
      Serial.println(http_response);
      Serial.println();
      delay(100);

      int Plus = http_response.toInt();
      int Saldo = EEPROM.read(t);
      int NewSaldo = Saldo + Plus;
      Serial.println("New Saldo: ");
      Serial.println(NewSaldo);
      Plus = 0;
      Saldo = 0;
      NewSaldo = 0;
      http_response = 0;

    }
    else {
      Serial.println("No response detected...");
      Serial.println();
    }

  }

It is supposed to take the value's between <t> and </t> and use it to add its content to the integer Saldo. This works for the first run (t=0) but after that t=1,2,3 give me no response detected.

Not sure how this happens.
6  International / Nederlands / Re: TowiTek RFID Reader on: July 17, 2013, 04:24:53 pm
Even een bump met een nieuwe vraag, is het mogelijk om de hardware seriele poorten van de Mega te gebruiken met inverse signalen?
7  International / Nederlands / Re: TowiTek RFID Reader on: February 16, 2013, 12:26:34 pm
Quote
String content = "";
  char character;
    int tester=0;
    String cont2=0;
   
  while(RFIDReader.available()) {
      character = RFIDReader.read();
      tester = (character + '255');
      content.concat(tester);
     
  }

  if (content != "") {
    Serial.println(content);
    cont2.concat(content);
   Serial.println(cont2);

Ik maak er dmv er 255 bij op te tellen een ansi code
8  International / Nederlands / Re: Verbeteringen, Ethercard, RFID lezer. on: February 16, 2013, 09:58:23 am
Code:
void loop()
{
  ether.packetLoop(ether.packetReceive());



  String content = "";
  char character;
    int tester=0;
    String cont2=0;
    
  while(RFIDReader.available()) {
      character = RFIDReader.read();
      tester = (character + '255');
      content.concat(tester);
      
  }

  if (content != "") {
    Serial.println(content);
    cont2.concat(content);
   Serial.println(cont2);
   Beep(100);
   delay(50);
   Beep(100);

  

      if (millis() > timer + REQUEST_RATE) {
      timer = millis();
      Serial.println("\n>>> REQ");
      
      char RFT[30];
      String xcode = String(cont2);
      xcode.toCharArray(RFT,30);

      foundPatternState=0;// Reset state machine
      ether.persistTcpConnection(true);// enable persist, so that the callback is called for each received packet.
      
      ether.browseUrl(PSTR("/dev_frizz.php?tag="), RFT, website, browseUrlCallback);
 delay(1000);
 Serial.println("Ready");
      



    }
    }
  }



// Magical stuff below

void ReadSerial(String &ReadTagString)
{
  int bytesread = 0;
  int  val = 0;
  char code[10];
  String TagCode="";

  if(RFIDReader.available() > 0) {          // If data available from reader
    if((val = RFIDReader.read()) == 10) {   // Check for header
      bytesread = 0;
      while(bytesread<10) {                 // Read 10 digit code
        if( RFIDReader.available() > 0) {
          val = RFIDReader.read();
          if((val == 10)||(val == 13)) {   // If header or stop bytes before the 10 digit reading
            break;                         // Stop reading
          }
          code[bytesread] = val;           // Add the digit          
          bytesread++;                     // Ready to read next digit  
        }
      }
      if(bytesread == 10) {                // If 10 digit read is complete

        for(int x=0;x<10;x++)              //Copy the Chars to a String
        {
          TagCode += code[x];
        }
        ReadTagString = TagCode;          //Update the caller
        while(RFIDReader.available() > 0) //Burn off any characters still in the buffer
        {
          RFIDReader.read();
        }

      }
      bytesread = 0;
      DisplayTAG = 0;

    }
  }
}


void Beep(int x)
{

digitalWrite(7, HIGH);
delay(x);
digitalWrite(7, LOW);
}

void Red(int x)
{
  digitalWrite(9, HIGH);
  delay(x);
  digitalWrite(9, LOW);
}

void Green(int x)
{
  digitalWrite(3, HIGH);
  delay(x);
  digitalWrite(3, LOW);
}

void Blue(int x)
{
  digitalWrite(10, HIGH);
  delay(x);
  digitalWrite(10, LOW);
}

void Relais(int x)
{
  digitalWrite(6, HIGH);
  delay(x);
  digitalWrite(6, LOW);
}

void Consumption()
{
  digitalWrite(6, HIGH); // Relais aan
  digitalWrite(3, HIGH); // Groen aan
  digitalWrite(7, HIGH); // Beep aan
  delay(50);
  digitalWrite(7, LOW); // Beep uit
  delay(50);
  digitalWrite(6, LOW); // RELAIS uit
  digitalWrite(7, HIGH);
  delay(50);
  digitalWrite(7, LOW);
  delay(50);
  digitalWrite(7, HIGH);
  delay(50);
  digitalWrite(7, LOW);
  delay(1000);
  digitalWrite(3, LOW);
 delay(200);
}

void GeenSaldo()
{

  digitalWrite(9, HIGH); // Groen aan
  digitalWrite(7, HIGH); // Beep aan
  delay(100);
  digitalWrite(7, LOW); // Beep uit
  delay(100);
  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);
  delay(1500);
  digitalWrite(9, LOW);
}

void Pauze(){
  digitalWrite(10, HIGH);
  delay(2000);
  digitalWrite(10, LOW);
  Beep(10);
}
9  International / Nederlands / Re: Verbeteringen, Ethercard, RFID lezer. on: February 16, 2013, 09:58:07 am
Code:
#include <SoftwareSerial.h>
#include <EtherCard.h>
#include <TextFinder.h>

int length = 0;
  
static uint32_t timer;

// Patterns and pattern buffer pointer
char *searchPattern[] = {
  "<code>"                    
};
char *searchPatternProgressPtr;

// Output bugger and pointer to the buffer
char displayBuff[64];
char testBuf[64];

char *outputBufferPtr;

int foundPatternState;// Initialsed in loop()


// Utility functions
void removeSubstring(char *s,const char *toremove)
{
  while( s=strstr(s,toremove) )
  {
    memmove(s,s+strlen(toremove),1+strlen(s+strlen(toremove)));
  }
}


// Function to find a string in a buffer, and return a pointer to the first char after the end of the match
// Returns pointer to NULL if a pattern is not found
// This function is designed to fing the search string across multiple buffers, and uses the patternInProgress pinter to store partial pattern matches
// The calling code needs to maintain patternInProgress between subsequent calls to the function.
char *multiBufferFindPattern(char *buffer,char *searchString,char *patternInProgress)
{
  while (*buffer && *patternInProgress)
  {
    if (*buffer == *patternInProgress)
    {
      patternInProgress++;
    }
    else
    {
      patternInProgress=searchString;// reset to start of the pattern
    }
    buffer++;
  }
  if (!*patternInProgress)
  {
    return buffer;
  }
  return NULL;
}

int getData(char *inputBuffer, char *outputBuffPtr, char endMarker)
{
  while(*inputBuffer && *inputBuffer!=endMarker && *outputBuffPtr)
  {
    *outputBuffPtr=*inputBuffer;
    outputBuffPtr++;
    inputBuffer++;

  }
  if (*inputBuffer==endMarker && *outputBuffPtr!=0)
  {
    *outputBuffPtr=0;
    // end character found
    return 1;
  }
  else
  {
    return 0;
  }
}


//Ethernet needs this
#define REQUEST_RATE 1000 // milliseconds
static byte mymac[] = {
  0x74,0x69,0x69,0x2D,0x30,0x31 };

char website[] PROGMEM = "frizzbar.nl";

byte Ethernet::buffer[400];

// request 2 remove other
static void browseUrlCallback (byte status, word off, word len)
{
  char *pos;// used for buffer searching
  pos=(char *)(Ethernet::buffer+off);
  Ethernet::buffer[off+len] = 0;// set the byte after the end of the buffer to zero to act as an end marker (also handy for displaying the buffer as a string)
  Serial.println((const char*) Ethernet::buffer + off);

  //Serial.println(pos);
  if (foundPatternState==0)
  {
    // initialise pattern search pointers
    searchPatternProgressPtr=searchPattern[0];
    foundPatternState=1;
  }

  if (foundPatternState==1)
  {
    pos = multiBufferFindPattern(pos,searchPattern[0],searchPatternProgressPtr);
    if (pos)
    {
      foundPatternState=2;
      outputBufferPtr=displayBuff;
      memset(displayBuff,'0',sizeof(displayBuff));// clear the output display buffer
      displayBuff[sizeof(displayBuff)-1]=0;//end of buffer marker
    }
    else
    {
      return;// Need to wait for next buffer, so just return to save processing the other if states
    }
  }    


  if (foundPatternState==2)
  {
    //Serial.println("Found HR start");
    if (getData(pos,outputBufferPtr,'<'))
    {
      Serial.print("Code ");
      Serial.println(displayBuff);

      long displayInt = atol(displayBuff);
      long codeInt = atol("9812");
      long faultInt = atol("6767");

      if (displayInt == codeInt)
      {
        Serial.print("Equal.");
      Consumption();
          

      }

      if (displayInt == faultInt)
      {
        Serial.print("Equal.");
        GeenSaldo();
        
      
      }

      String DisplayTAG = "";

      ether.persistTcpConnection(false);  //Move to next state (not used in this demo)
    }
    else
    {
        
        Beep(100);
        Beep(100);
        Beep(100);
        Beep(100);
        
      
      // end marker is not found, stay in same findPatternState and when the callback is called with the next packet of data, outputBufferPtr will continue where it left off
    }
  }
 
 Pauze();
}



// called when the client request is complete
static void my_result_cb (byte status, word off, word len) {

  Serial.print("<<< reply ");
  Serial.print(millis() - timer);
  Serial.println(" ms");
  Serial.println((const char*) Ethernet::buffer + off);


}

//Parallax RFID Reader

#define RFIDSerialRate 9600 //Parallax RFID Reader Serial Port Speed

//Using SoftwareSerial Library to locate the serial pins off the default set
//This allows the Arduino to be updated via USB with no conflict
#define RxPin 5 //Pin to read data from Reader
#define TxPin 4 //Pin to write data to the Reader NOTE: The reader doesn't get written to, don't connect this line.
SoftwareSerial RFIDReader(RxPin,TxPin);

String RFIDTAG=""; //Holds the RFID Code read from a tag
String DisplayTAG = ""; //Holds the last displayed RFID Tag

void setup()
{
  
   pinMode(3, OUTPUT);
   pinMode(6, OUTPUT);
   pinMode(7, OUTPUT);
   pinMode(9, OUTPUT);
   pinMode(10, OUTPUT);
  
  // RFID reader SOUT pin connected to Serial RX pin at 9600bps
  RFIDReader.begin(RFIDSerialRate);

  // Set Enable pin as OUTPUT to connect it to the RFID /ENABLE pin
  


  // Activate the RFID reader
  // Setting the RFIDEnablePin HIGH will deactivate the reader
  // which could be usefull if you wanted to save battery life for
  // example.


  Serial.begin(9600);           // set up Serial library at 9600 bps

  Serial.println("\n[getDHCPandDNS]");


  if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
    Serial.println( "Failed to access Ethernet controller");
    Beep(500);
    Blue(100);
    Beep(500);
    Blue(100);
    Blue(100);
    Blue(100);
    Blue(100);
    

  if (!ether.dhcpSetup())
    Serial.println("DHCP failed");

  ether.printIp("My IP: ", ether.myip);
  // ether.printIp("Netmask: ", ether.mymask);
  ether.printIp("GW IP: ", ether.gwip);
  ether.printIp("DNS IP: ", ether.dnsip);

  if (!ether.dnsLookup(website))
    Serial.println("DNS failed");

  ether.printIp("Server: ", ether.hisip);


  timer = - REQUEST_RATE; // start timing out right away

}

10  International / Nederlands / Verbeteringen, Ethercard, RFID lezer. on: February 16, 2013, 09:57:27 am
Hoi allemaal,

Onderstaande code doet wat het moet doen, maar netjes is het zeker niet. Zijn er mensen die mogelijke verbeteringen of meer fool-proof ideeen hebben hiervoor?
Het is de betaal automaat voor een frisdrankautomaat (gewoon een kleintje voor een groep vrienden). Mensen betalen vooraf en krijgen dan credits op een webserver (in een mysql database).
Dit programma leest een aangeboden tag, stuurt de tag naar een webpagina en leest de return code. Afhankelijk van de code krijgen ze of een groen lampje en schakelt een relais kort in. Of ze krijgen bij geen saldo een rood lampje, of indien de tag niet herkent is een blauw lampje.

11  International / Nederlands / TowiTek RFID Reader on: February 01, 2013, 07:03:38 am
Hallo allemaal,

Na het gebruik van de parallax rfid reader ben ik over gestapt op de kleinere TowiTek RFID lezer. De onderstaande code:

Code:
long incomingByte;   
char Data[6];
int i;
unsigned long Tempo;

void setup()
{
  Serial.begin(9600);
}

void loop(){
 
   do {
     if (Serial.available()) {       
       Data[i] = Serial.read();
       i++;
       }     
     if(i<1)Tempo = millis();
     } while (i<5&&(millis()-Tempo) < 500);   
   Data[i] = 0;   
   incomingByte = atof(Data);   
   
   Serial.print(incomingByte); 
   
   for (i=0; i<5; i++) {
    Serial.print(Data[i]);   
    }
   i=0;
}

Werkte prima voor de parallax reader (die overigens op 2400 baud werkt).

Helaas is dit de output die ik krijg na het aanbieden van 4 tags:


Dus vreemde tekens ipv normale tag code.

Wie kan mij verder helpen?
12  International / Nederlands / Re: TextFinder and Ethercard on: January 19, 2013, 01:09:36 pm
Hoi Rikky,

Uiteindelijk moet het gewoon over Ethernet werken! Overigens was het geen probleem om verbinding te maken met mijn router en een IP adres toegewezen te krijgen over DHCP.

Ik snap wat je bedoelt, maar ik gebruik arduino niet als server maar als client. Door middel van de link kan ik informatie verzenden: iets.php?id=123 verstuurd id=123 naar de php pagina.

Maar wat ik wilde is gelukt!
13  Using Arduino / Networking, Protocols, and Devices / Re: How to process information from Ethercard on: January 19, 2013, 08:52:28 am
After some more googling I found a webscraping example for Ethercard and this works great.

Code:
          Serial.print("Code ");Serial.println(displayBuff);
           char fCode[] = "1111";
          Serial.print("Fcode ");Serial.println(fCode);
         
          if (displayBuff ==fCode)
          {
            Serial.print("Equal.");
          }

The result of this is
Code:
Code 1111
Fcode 1111

However the code does not return my print. I believed at first this was an issue because of the numerical string, but using ABCDE gives the same answer.
14  Using Arduino / Networking, Protocols, and Devices / Re: How to process information from Ethercard on: January 19, 2013, 07:14:29 am
The usage of Ethercard.h instead of Ethernet.h is what is causing the problems.

Client.read does not exist and I can't figure out how to put the buffer into a char instead of just getting printed.
15  International / Nederlands / Re: TextFinder and Ethercard on: January 19, 2013, 03:41:23 am
Ja, zo zou het ook kunnen maar ik dacht dat TextFinder makkelijk zou werken  smiley-mr-green

Het probleem is dat ik uit een voorbeeld heb dat die Ethercard informatie uitspuugt naar de seriele monitor maar dat ik geen enkel idee heb hoe ik iets met die informatie kan.

TextFinder kan iets uit een stream halen, maar hoe zorg ik dat die stream mijn pagina is? Als ik een Ethernet shield had dan was het niet zo lastig, maar 7 euro ipv 35 veranderd de zaak!
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