RFID in my project

Projects Programming
1

Hello everyone!

I'm trying to do this project for several weeks, but RFID is causing problems... I need some help.

Objects:
1 keypad 4X3;
1 Stepper (28BYJ-48);
1 RFID ID 12 Innovations (125 KHz);
2 RFID Tags (125 KHz);
1 Arduino UNO R3.

My project: The person has a Login and a password. If the Login and the password are corrects, the person may choose another key in the keypad, if the person chosse "1", the stepper will make 10 steps, or chosse "2", the stepper will make 20 steps.

Then if the RFID ID 12 "sense" the first tag, the stepper will return the 10 steps, or "sense" the second tag, the stepper wiil return the 20 steps.

I do the login, password, stepper codes in my project. But I can't do the RFID code to works correctly. I saw many codes about this on the internet. But when I put in my project the keypad doesn't works and etc.

I saw the code about RFID ID 12 in Arduino.cc, but isnt I want. I used this code: http://bildr.org/2011/02/rfid-arduino/. I don't need use the serial monitor or SoftwareSerial library. Just make the stepper return.

And I have the Tags: "28004F5C5B60" and ""28004F542B18".

Any suggestion? Thanks!

#include <EEPROM.h>
#include <Keypad.h>
#include <Stepper.h>

int x;

int master;
int Login;
byte password;
byte reads;

const byte ROWS = 4;
const byte COLS = 3;

char keys[ROWS][COLS] = {
  {'1','2','3'},
  {'4','5','6'},
  {'7','8','9'},
  {'*','0','#'}
};

byte rowPins[ROWS] = {2, 3, 4, 5};
byte colPins[COLS] = {6, 7, 8};

Keypad kpd = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

const int stepsPerRevolution = 64;
Stepper myStepper(stepsPerRevolution, 9,10,11,12);

//----------------------------------

void setup(){
  
  EEPROM.write(1, 31);
  
  master   = 0;
  Login    = 0;
  password = 0;
  reads    = 0;
  
  myStepper.setSpeed(300);
  
}

void loop(){
  
  char key = kpd.getKey();
  
  if(key){
    
    switch(key){
      
      case '1':
        master = master + 1;
        break;
        
      case '2':
        master = master - 2;
        break;
        
      case '3':
        master = master * 3;
        break;
        
      case '4':
        master = master + 4;
        break;
        
      case '5':
        master = master - 5;
        break;
        
      case '6':
        master = master * 6;
        break;
        
      case '7':
        master = master + 7;
        break;
        
      case '8':
        master = master - 8;
        break;
        
      case '9':
        master = master * 9;
        break;
        
        
      case '*':
        Login = abs(master);
        master = 0;
        break;
        
      case '#':
        password = abs(master);
        delay (500);
        reads = EEPROM.read(Login);
        
        if(password == reads){
          
          x = 10;
          
          master   = 0;
          Login    = 0;
          password = 0;
          
        }
        
        break;
        
    }
  }
  
  while(x == 10){
    
    char key = kpd.getKey();
    
    if(key){
      
      switch(key){
        
        case '1':
          for(int j=0; j<32; j++){
            myStepper.step(10);
          }
          
          //I THINK IS HERE THE RFID
          
          x = 0;
          break;
          
        case '2':
          for(int j=0; j<32; j++){
            myStepper.step(20);
          }
          
          //I THINK IS HERE THE RFID
          
          x = 0;
          break;
          
      }
    }
  }
}
2

Forget the keypad. Forget the stepper. Can you even read the RFID data? The code in your other post is crap, by the way. Way too much repetition.

3

Yes, I can read the tags. This code is an adaptation. It's works, but don't diference the tags. And I want to remove all repetition in the code, buts this way works.

May u help?

4

It's works, but don't diference the tags.

And I want to remove all repetition in the code, buts this way works.

You have a strange definition of "works", then.

You should have a function that takes a tag, and returns which tag it matched, or -1 for no match. Forget anything else until you are reading the tag correctly (the code in this thread doesn't read a tag at all; the code in the other thread does not read a tag correctly) and the matching is happening correctly.

5

Sorry friend.

I adapted the code from this site: http://bildr.org/2011/02/rfid-arduino/