RFID displays weird numbers

[rolls]

Hello,please i need your help. Am making an RFID access control for my final year project. but each time i place the tag on the rfid reader it displays weird characters. The code is written in MikroC with PIC18F45K22. Thanks very much for your replies.

 

// LCD module connections

sbit LCD_RS at RB4_bit;

sbit LCD_EN at RB5_bit;

sbit LCD_D4 at RB0_bit;

sbit LCD_D5 at RB1_bit;

sbit LCD_D6 at RB2_bit;

sbit LCD_D7 at RB3_bit;

 

sbit LCD_RS_Direction at TRISB4_bit;

sbit LCD_EN_Direction at TRISB5_bit;

sbit LCD_D4_Direction at TRISB0_bit;

sbit LCD_D5_Direction at TRISB1_bit;

sbit LCD_D6_Direction at TRISB2_bit;

sbit LCD_D7_Direction at TRISB3_bit;

// End LCD module connections

 

  char i,rfid[13] ;

 

  char rfid2[] = "012345678912" ;

  int count = 0;

void main()

{

 

   ANSELB = 0;

   ANSELD = 0;

   ANSELC = 0;

 

  Lcd_Init();                         // Initialize LCD

  Lcd_Cmd(_LCD_CLEAR);                // Clear display

  Lcd_Cmd(_LCD_CURSOR_OFF);           // Cursor off

  //Lcd_Out(1,1,"RFID Tag Reader");     // Write text in first row

  

  UART2_Init(9600);

  

  rfid[12] = '';

 

  while(1)

  {

 

     if(UART2_Data_Ready())

     {

       for(i=0;i<12;)

       {

         if(UART2_Data_Ready())

         {

            rfid = UART2_Read();

            i++;

         }

 

       }

 

        Lcd_Out(1,1,rfid);

 

          if(!strcmp(rfid,rfid2)){

        Lcd_Out(2,1,"ACCESS GRANTED");

        delay_ms(1000);

        Lcd_Cmd(_LCD_CLEAR);

        //Lcd_Out(1,1,"RFID Tag Reader");

      }

      else  {

       Lcd_Out(2,1, "ACCESS DENIED");

       delay_ms(1000);

       Lcd_Cmd(_LCD_CLEAR);

       //Lcd_Out(1,1,"RFID Tag Reader");

      }

 

     }

 

  }

}

[Prabakaran P M]

This error is may be due to Baud rate configuration, check the baud rates of both module and PIC.

[Author]

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