RFID IN MIKROC

char cardletter;
                     void lcdstart(void);
                     void card1(void);
                     void card2(void);
                     void card3(void);
                     void rfid(void);
                     // LCD module connections
                     sbit LCD_RS at RD2_bit;
                     sbit LCD_EN at RD3_bit;
                     sbit LCD_D4 at RD4_bit;
                     sbit LCD_D5 at RD5_bit;
                     sbit LCD_D6 at RD6_bit;
                     sbit LCD_D7 at RD7_bit;
                     sbit LCD_RS_Direction at TRISD2_bit;
                     sbit LCD_EN_Direction at TRISD3_bit;
                     sbit LCD_D4_Direction at TRISD4_bit;
                     sbit LCD_D5_Direction at TRISD5_bit;
                     sbit LCD_D6_Direction at TRISD6_bit;
                     sbit LCD_D7_Direction at TRISD7_bit;
                     // End LCD module connections
                     void main(){
                       uart1_init(9600);
                       Delay_ms(100);                  // Wait for UART module to stabilize
                     lcdstart();
                       while(1)
                       {
                       rfid();
                       }
                     }
                     void rfid(void)
                     {
                       if (UART1_Data_Ready())
                        {
                     cardletter = UART1_Read();
                     card1();
                     card2();
                     card3();
                     }
                     }
                      void card1(void)//card no.1000699A58BB(PRINTED NO.10539512)
                     {
                     if(cardletter=='8')
                     {
                     while(!(UART1_Data_Ready()));
                     cardletter = UART1_Read();
                     if(cardletter=='B')
                     {Lcd_Out(2,1,"card found 1");}
                     }
                     }
                      void card2(void)//card no.180089205DEC (PRINTED NO.13708285)
                     {
                     if(cardletter=='D')
                     {
                     while(!(UART1_Data_Ready()));
                     cardletter = UART1_Read();
                     if(cardletter=='E')
                     {Lcd_Out(2,1,"card found 2");}
                     }
                     }
                      void card3(void)//card no.1800893719BF (PRINTED NO.13714105)
                     {
                     if(cardletter=='9')
                     {
                     while(!(UART1_Data_Ready()));
                     cardletter = UART1_Read();
                     if(cardletter=='B')
                     {Lcd_Out(2,1,"card found 3");}
                     }
                     }
                      void lcdstart(void)
                      {
                         Lcd_Init();                        // Initialize LCD
                       Lcd_Cmd(_LCD_CURSOR_OFF);          // Cursor off
                        Lcd_Out(1,6,"Alchol detector");
                        delay_ms(1000);
                          Lcd_Cmd(_LCD_CLEAR);
                      }