// Connections
sbit LED at LATA4_bit;

// LCD module connections
sbit LCD_RS         at LATD0_bit;
sbit LCD_EN         at LATD1_bit;
sbit LCD_D4         at LATD2_bit;
sbit LCD_D5         at LATD3_bit;
sbit LCD_D6         at LATD4_bit;
sbit LCD_D7         at LATD5_bit;

sbit LCD_RS_Direction at TRISD0_bit;
sbit LCD_EN_Direction at TRISD1_bit;
sbit LCD_D7_Direction at TRISD2_bit;
sbit LCD_D6_Direction at TRISD3_bit;
sbit LCD_D5_Direction at TRISD4_bit;
sbit LCD_D4_Direction at TRISD5_bit;

// Global Degisken Tanimlamalari
unsigned short i=0;
unsigned short receivedDataCount=0;
char receivedData[16];

void Interrupt(){                                    // Kesme Fonksiyonu
  if(RCIF_bit){                                      // Eger HC-06'dan bir veri gelmis ise
    receivedData[receivedDataCount]=UART1_Read();    // Gelen veriyi receivedData dizisine yaz.
    receivedDataCount++;                             // Gelen veri sayisini bir arttir
    RCIF_bit=0;                                      // Kesme bayragini temizle
  }
}

void SendCommandAndPrintDisplay(char *command){
  receivedDataCount=0;                               // Gelen veri sayisini 0 yap

  Lcd_Out(1,1,">");                                  // LCD 1.satir 1.sütuna > karakterini yazdir
  Lcd_Out_CP(command);                               // LCD cursor konumuna komut verisini yazdir
  UART1_Write_Text(command);                         // Komutu UART ile HC-06'ya gönder
  delay_ms(1000);                                    // 1sn bekle

  for(i=0; i<receivedDataCount; i++)                 // i 0'dan baslayarak gelen veri sayisina kadar
    Lcd_Chr(2,i+1,receivedData[i]);                  // gelen veriyi ekrana yazdir.
}

void main() {
  TRISA=0b00000000;// [][][][LED][][][][]
  TRISB=0b00000000;// [][][][][][][][]
  TRISC=0b10000000;// [RX][TX][][][][][][]
  TRISD=0b00000000;// [][][][][][][][]
  TRISE=0b00000000;// [][][][][][][][]

  // Tüm portlar dijital I/O olarak secildi
  ANSELA=0x00;
  ANSELB=0x00;
  ANSELC=0x00;
  ANSELD=0x00;
  ANSELE=0x00;

  // Tüm portlar lojik-0 yapildi
  LATA=0x00;
  LATB=0x00;
  LATC=0x00;
  LATD=0x00;
  LATE=0x00;

  UART1_Init(9600);                                  // UART1'i 9600 baud hizinda hazirla
  
  GIE_bit=1;                                         // Global kesmeleri aktif et
  PEIE_bit=1;                                        // Çevresel kesmeleri aktif et
  RCIE_bit=1;                                        // UART veri alma kesmesini aktif et
  
  Lcd_Init();                                        // LCD ekrani hazirla
  Lcd_Cmd(_LCD_CURSOR_OFF);                          // Cursor'ü kapat
  Lcd_Cmd(_LCD_CLEAR);                               // Ekrani temizle

  Lcd_Out(1,1,"      HC-06     ");
  Lcd_Out(2,1,"   AT COMMANDS  ");
  
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);
  

  SendCommandAndPrintDisplay("AT") ;                 // HC-06'ya AT komutunu gönder
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);

  SendCommandAndPrintDisplay("AT+VERSION") ;         // HC-06'ya AT+VERSION komutunu gönder
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);

  SendCommandAndPrintDisplay("AT+NAMETrudyo") ;      // HC-06'ya AT+NAMETrudyo komutunu gönder
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);

  SendCommandAndPrintDisplay("AT+PIN1453") ;         // HC-06'ya AT+PIN1453 komutunu gönder
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);

  SendCommandAndPrintDisplay("AT+BAUD4") ;           // HC-06'ya AT+PIN1453 komutunu gönder
  delay_ms(2000);
  Lcd_Cmd(_LCD_CLEAR);

  LED=1;
  Lcd_Out(2,1,"   TAMAMLANDI   ");

}