PIC 16F84A interface with bluetooth bee HC-06

aviksingha · Sep 16, 2013

https://www.edaboard.com/threads/143406/................... I have almost the same project as the mentioned one......& i too have the similar problem but found no solution...

My project is described below...
PIC 16F84A interface with bluetooth bee HC-06(iteadstudio.com)

Hello, I am an engineering student working on a project based on Remote car control using bluetooth for wireless communication. Below, I have described the project contents and its working in precise.

My project consists of 2 parts; the transmitter side consists of PC or LAPTOP along with a Bluetooth DONGLE and the receiver side consists of a Bluetooth UART MODULE, Microcontroller and car stuffs. So, the aim of my project is to nevigate through PC using Hyperterminal and transmit it wirelessly to the receiver Bluetooth UART module to drive the motors through microcontroller(PIC16F84A).

However i m having few doubts based on it as follows:-

1) I have seen the features of the above mentioned Bluetooth MODULE but would like to clarify whether it can be compatible with PIC16F84A microcontroller which i 'll be using as Host to control this module so as to detect remote devices and to receive data.

2) Can i directly interface my PIC to this Bluetooth MODULE at the receiver side?

3) Can i create or establish connectivity with the transmitter side USB Dongle from this receiver side Bluetooth MODULE via. PIC..?

4) Can i get an example of a command to be sent in C language via PIC to control this Bluetooth MODULE?

Thanks in advance............

wp100 · Sep 17, 2013

aviksingha said:
https://www.edaboard.com/threads/143406/................... I have almost the same project as the mentioned one......& i too have the similar problem but found no solution...

My project is described below...
PIC 16F84A interface with bluetooth bee HC-06(iteadstudio.com)

Hello, I am an engineering student working on a project based on Remote car control using bluetooth for wireless communication. Below, I have described the project contents and its working in precise.

My project consists of 2 parts; the transmitter side consists of PC or LAPTOP along with a Bluetooth DONGLE and the receiver side consists of a Bluetooth UART MODULE, Microcontroller and car stuffs. So, the aim of my project is to nevigate through PC using Hyperterminal and transmit it wirelessly to the receiver Bluetooth UART module to drive the motors through microcontroller(PIC16F84A).

However i m having few doubts based on it as follows:-

1) I have seen the features of the above mentioned Bluetooth MODULE but would like to clarify whether it can be compatible with PIC16F84A microcontroller which i 'll be using as Host to control this module so as to detect remote devices and to receive data.

2) Can i directly interface my PIC to this Bluetooth MODULE at the receiver side?

3) Can i create or establish connectivity with the transmitter side USB Dongle from this receiver side Bluetooth MODULE via. PIC..?

4) Can i get an example of a command to be sent in C language via PIC to control this Bluetooth MODULE?

Thanks in advance............

Hi,

In a word, No.

Many reasons , just some -
Pic16F84 is a 5v chip ,your devices are 3v3
Pic16F84 has no Usart modules so software Usarts would be needed.
Pic16F84 has a small program memory ,C uses a lot of space

You really need to choose a more suitable 16F or 18F chip that overcomes these basic problems.

tarjina · Jun 11, 2014

Hi wp100, I'm building the same project. But instead of PC and bluetooth dongle I'm using Android phone and bluetooth module hc-05. Kits I'm using:
1. pic18f452
2. bluetooth module hc-05
3. SENA BTerm
4. 3.3 v supplier
5. programming in mikroC
But i can't receive the data. I can pair the device and connect the module to the phone but when I try to send the data it does not transmit...below is my code:
Hello guys,
I'm new here. Please help me out. I'm trying to connect PIC18F452 to android phone via bluetooth HC-05 module (can work as master and slave). I'm trying to send the data but it's not working. I'm coding in mikroC and UART library. Does anyone here can help me please???
Here's my code:

Code C - [expand]
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char uart_rd;
void main() {
TRISA=0X00;
TRISD=0X00;
  UART1_Init(9600);               // Initialize UART module at 9600 bps
  Delay_ms(100);                  // Wait for UART module to stabilize
 
while(1){
if (UART1_Data_Ready()) {     // If data is received,
      PORTD=0XFF;
      uart_rd = UART1_Read();     // read the received data,
      if(uart_rd=='1'){
      PORTA=0X05;
      delay_ms(5000);
      PORTD=0X0F;
      delay_ms(1000);
      
      }
      else if(uart_rd=='2'){
      PORTA=0X0C;
      delay_ms(5000);
      PORTD=0X0F;
      delay_ms(1000);
      }
      else if(uart_rd=='3'){
      PORTA=0X24;
delay_ms(5000);
PORTD=0X0F;
      delay_ms(1000);
      }
      else if(uart_rd=='4'){
      PORTA=0X06;
delay_ms(5000);
PORTD=0X0F;
      delay_ms(1000);
      }
}
else
{PORTA=0X00;}
}
}

please help.

paulfjujo · Jun 11, 2014

hello,
is HC06 a slave ?
What application *.apk do you use on your android phone..
did you gives authorization to connect with Android device?
do you have a time-out for discovering your Android ?
same ID code "1234" by default ?
same UART speed as HC06..

You can test also with PC + BT dongle
and Bluesoleil application
wich can show all BT device around the pC
attach one to the PC
active PORTA virual COM1 to the attached device, to dialogue with a classic terminal
like COMx.

tarjina · Jun 12, 2014

paulfjujo said:
hello,
is HC06 a slave ?
What application *.apk do you use on your android phone..
did you gives authorization to connect with Android device?
do you have a time-out for discovering your Android ?
same ID code "1234" by default ?
same UART speed as HC06..

You can test also with PC + BT dongle
and Bluesoleil application
wich can show all BT device around the pC
attach one to the PC
active PORTA virual COM1 to the attached device, to dialogue with a classic terminal
like COMx.

Hi, sorry for some miscommunication. I'm actually using HC-05 (it can work as master or slave depending on user input). I'm using SENA BTerm.apk
I can connect the module via any apk supporting SPP in playstore.
But the problem is I can't send data. So I'm guessing that there's some mistake in my code. And do I need to connect any capacitor at the tx/rx pin of module or PIC???
Thanks in advance

paulfjujo · Jun 12, 2014

hello

I try to send the data it does not transmit...

How do you send the data
you must add a terminateur like CR or LF
'1'<CR>
but it is 2 characters ! and you are wating only one .. and can get allways <CR>
you must use string not char for reception
treat reception in interrupt mode with a buffer

detect CR input inside the buffer
analyse the buffer
decide action to do

example

Code:

#define CLS 12
#define CR 13
#define LF 10
#define BS 8
#define TAB 9

#define MAXLEN 32
volatile char buffer[MAXLEN];
volatile int Index1, CptErr,i1;


volatile struct chbits {   // 8 flags
                 unsigned FrameErr:1;
                 unsigned Store:1;
                 unsigned Elligible:1;
                 unsigned Togle:1;            
                 unsigned Second;
                 unsigned See:1;
                 unsigned Full:1;
                 unsigned Lcd:1;
               }Drapeaux ;  


void interrupt()
 {
    unsigned char c1;
    if ((RCIE_bit) && (RCIF_bit))
    {
       if (RCSTA.OERR==1)    // voir parag 16.1.26 p273
      {
       RCSTA.CREN = 0 ;
       c1 = RCREG;
       RCSTA.CREN = 1 ;
        CptErr++;
       }
      if(RCSTA.FERR==1 )
      {
      RCSTA.SPEN = 0 ;
      RCSTA.SPEN= 1 ;
      CptErr++;
       c1 = RCREG;
      }
      c1 = RCREG;
     if ((c1==CR) || (i1>=MAXLEN)) 
      {
      Drapeaux.Full=1;
      //PIE1.RCIE=0 ; //interdit IT Reception UART
     
      buffer[i1]=0;
     
      Index1=i1;
      i1=0;
      c1=0;
     }
     else
     {
       
        buffer[i1]=c1;
        
        Index1=i1;
        i1++;
      }
     RCIF_bit=0   ;
    }
}













in the main ----------------

  ... init UART and others...

// arme UART en reception

   RCIF_bit=0;
   RCIE_bit=1;
   Drapeaux.Full=0; 
   
   
   T0IE_bit=1;  // arme Timer0 interrupt
   PEIE_bit=1;
   GIE_bit=1;

do
{
    ... some treatments or
    Delay_ms(500);

   if (Drapeaux.Full==1)
     { 
         // commande des leds D0,D1,D2,D3  sur le portD
       if ((buffer[0]=='D')&& ((isalnum(buffer[1]) && (isalnum(buffer[2])  && (strlen(buffer)==3)))))
       {
       dummy=buffer[1]-48;
       if (buffer[2]=='1') PORTD= PORTD | (1<<dummy );
       if (buffer[2]=='0') PORTD= PORTD & (0xFF-(1<<dummy));
       }
        buffer[0]=0;   
       Drapeaux.Full=0;
       i1=0;Index1=0;
    }

  ... other .......


} while(1);

.....

tarjina · Jun 19, 2014

Dear paulfjujo ,
Thank you so much for your reply. But please treat me as a novice. I tried it simply. I connected them. And they r exchanging data.But the problem is it's garbage data!!!
like i'm sending "UART initialized"
UART1_Write("10");
in the android app it's showing
some symbols. and when I'm sending value '1' from the app "blueSpp" the code couldn't understand it. Do you know what is the baud rate of the android apps??
I have one more problem i can't declare string or array of character in mikro C.
string a; ///doesn't work. gives error
char a[10]; //doesn't work. gives error. it says, " ; expected but a found" "unknown identifier for a"
I checked my libraries, it's string, uart supported.

Thanks a million again and sorry for the inconveniences...plz HELP!!

tarjina · Jun 24, 2014

Dear paulfjujo ,

Query-1: I'm just checking the connection between HC-05 and android app (Blue Spp)
Here's my code:

Code:

void main() {
  UART1_Init(9600);               // Initialize UART module at 9600 bps
  Delay_ms(100);                  // Wait for UART module to stabilize
  UART1_Write_Text("Start");
  while (1) {                     // Endless loop
    if (UART1_Data_Ready()) {     // If data is received,
      UART1_Write(UART1_Read());       // and send data via UART
    }
  }
}

I'm using mikroC pro version 6.0
coding in C language. But it does not work.
Query-2: I have another question why don't I have to configure the RX and TX pin as input and output pin respectively via the TRISC register?The TX and RX pin are located at RC6 and RC7 of PIC18F452.

arbj2 · Jun 24, 2014

just for your information. The KEY input decides whether command or normal mode the HC-05 should be operated.

High state indicates the HC-05 is in command mode, whereas LOW state indicates normal mode, in this mode data sent from the bluetooth terminal in the android phone will be received irrespective of CR or LF. Whatever you type in the terminal will be received by the module.

In command mode the commands have to be terminated by a CR-LF characters. But I have noticed some differences in the datasheet and the actual working. For example the AT command for testing communications needs a CR+LF character at the end. Whereas the device name request command does not need one. Similarly for changing the device name CR+LF characters are not required.

I have not investigated further but I am sure these chinese modules have some errors in the datasheets. In any case I am planning to upgrade to a better module like the RN41 module from Microchip

If you are using CCS C compilers then you can easily implement a software UART. Its possible to have receive interrupts even with software interrupts by using the external interrupt pin (INT0), I am not sure the 16F84A has this interrupt.

However if your application does not need much RAM then the 16F84A should do the job (provided you are able to implement software UART).

The HC-05 itself does not consume much RAM/ROM resources for setting up. The basic AT commands need only be used once for setting up (during configuration in the lab), once setup the HC-05 retains the data on its FLASH memory, writing to the FLASH memory must also be avoided as this can reduce the lifetime of these modules.

Apart from this the module is ready for communication.

Thanks
a

thanks
a

paulfjujo · Jun 24, 2014

tarjina said:
,

Query-1:

Code:

void main() { UART1_Init(9600); // Initialize UART module at 9600 bps Delay_ms(100); // Wait for UART module to stabilize UART1_Write_Text("Start"); [COLOR=#FF0000] UART1_Write(13); [/COLOR] // Carriage return is maybe needed by Android application [COLOR=#FF0000]UART1_Write(10);[/COLOR] // Line feed [COLOR=#FF0000]delay_ms(200);[/COLOR] // some delai to get the response while (1) { // Endless loop if (UART1_Data_Ready()) { // If data is received, UART1_Write(UART1_Read()); // and send data via UART } } }

it is better to use interrupt and a buffer to get the answer wich can have more than 1 character!
arm a led status to detect receipt error from uart like
RCSTA.OERR or RCSTA.FERR

Query-2: I have another question why don't I have to configure the RX and TX pin

the function UART1_Init(9600); does this job for you !
but you can add ,before the Uart init
TRISC.RC7=1;
TRISC.RC6=0;

for using string, check this softwaren written for à litle PIC12F1840 8 pins !
little but very powerfull compare to your old 16F84A

A function is used to Init the Bluetooth module..
to change the name, the speed ...etc..
You can remove a big part of the programme to keep essential for you..

in particular see the use of a buffer to get the answer from BT device..or android apk

Code:

/*
nota:   23-06-2014      
 Il est IMPERATIF d'utiliser la syntaxe
 UART1_Write_Text((const char *)"AT+NAMEHC06-7D69"); //98:D3:31:B1:7D:69
 au lieu de  
 UART1_Write_Text("AT+NAMEHC06-7D69");
 sous peine de se retrouver avec le message 
 Not enough RAM 'Address' __Lib_EEPROM.c
 

BlueSoelil HC06-7D69 appairé avec PC, vu comme PORTA serial COM8..OK
usage interface RS232-2T ....OK 

03-05-2014
modif Hardware sur le module BT HC06 bleu
soudé fil sur Pin13 Reset 
                ac:Reset_Pin_HC06
Apres la mise sous tension RESET=1   RESET=0 et RESET=1
le HC06 clignote maintenant à chaque fois ...       
       
28 avril 2014 ... MikroC Pro version Enregistre !!! no more limit
        
 P12F1840_16MHz_2014.cfgsch
  
  last update  03/05/2014
  Hardware
  12F1840                                                                  BT pin 6 N.C.
  pin 1     VDD Alim +3.3  ATTENTION !!!!!!!!!!!!!!    --------------------BT pin 5 3,3V
  pin 2     RA5 -- output ---->  HC06 RESET   fil soudé direct sur --------BT coté composant pin 11 
  pin 3     RA4 <--- AN3 Analog input  <--  capteur Temper LM335
  pin 4     RA3/MCLR/VPP -- ICSP Reset   R=5.6K  de rappel au +3,3V
  pin 5     RA2 <--- RX soft uart 1200  EDFInfo
  pin 6     RA1  ICSP Clock  &  input RX <------TX bluetooth   =  emission BT pin 3    TX
  pin 7     RAO  ICSPDAT  &    output TX ------> RX bluetooth  = reception BT  pin 2   RX
  pin 8     VSS alim 0V  -----------------------------------------------   BT pin 4    OV
                                                                           BT pin 1    N.C.
 from version : 12F1840_Teleinfo_8Mhz_121229.c
------------------------------------
  
  Mesure temperature Ambiante du garage    LM335   2370mV at 0°C                                                     
  Dialogue bluetooth RN41
   Config vue par Pickit2  3FE4  1613
   via Edit Project
   CONFIG1   :$8007 : 0x3FE4
   CONFIG2   :$8008 : 0x1613


  clock 16  Mhz  en mode interne INTOSC
  Test ADC avec ref 2,048 ..OK
  Lecture msg en EEPROM pour afichage
  

  Projet :  12F1840_teleinfo_UART_BT_RN41_2014.mcppi
   SW:       mikroC PRO for PIC   V 6.0
   MCU :         PIC12F1840  ehanced type
   Directory :   C:\_MickroC\_MesProjets_MickroC\_12F1840
   Source :      12F1840_Teleinfo_1200_UART_19200_16Mhz_140503.c
   EEPROM :      12F1840_Teleinfo_8Mhz_121105.ihex     ou .eed
   Programmateur tools : PicKit2 V2.61 (choose 1,8V family!)
   config bits:     P18F1840_teleinfo.cfgsch
   CONFIG1   :$8007 : 0x0984
   CONFIG2   :$8008 : 0x3413
   config vu par Pickit2 :  0984 3413 <- OK
   VDD    : 5,0V    ( from 2,3 to 5,5V)
   horloge  :  interne à 16 MHz ... pas de quartz
   Librairies utilisees :
   - built_in.h
   - UART
   - C_String
   - Conversions
   - ADC
     device ID =  01 1011 100
   Calibrations words 8009h & 800Ah
   hex file au format : INHX32   LSB puis MSB 
   
   pinout :     ac:_12F1840_Pinout  
   
    ac:Datasheet

   docu :  
   
   docu:  ac:Interrupts_12F1840 
   

 */


#include "built_in.h"     /* for  Hi  Lo ..etc*/

#define TAB 9
#define CLS 12
#define CR 13
#define LF 10
#define STX 2
#define ETX 3


#define POWER_SUPPLY_3_3V
#define FOSC 16.0  // MHz
#define BAUD 19200  // UART


#define Reset_BT_HC06 LATA5_bit     // RA5 direct sur circuit imprimé RESET HC06

//with define 63 bytes RAM remaining (26%)  sinon
//error  Not enough RAM 'Address' __Lib_EEPROM.c
#define With_Cast_for_TEXTE 

const code char mesg0[]="Mikroc pro 6.01 03/05/2014\n\r";

 // timer0
const unsigned char   NbCycles_1bit = 204;     // timer0 8 bits  3328S avec prescaler=1/64 16Mhz
const unsigned char   NbCycles_1_demi_bit=230; // 1664 cycles
unsigned int NbCycles_T1; //65535-3035=62500 @16Mhz et prescaler=8 => 62500*8*0.25=125 mS

volatile char buffer[64];        // besoin de 165 car !
char Texte[32];
unsigned short error;
volatile unsigned int CptErr;
volatile unsigned int Count1;
volatile unsigned int i1;
volatile int Flag_Timer1;
volatile int Flag_Timer0;
volatile int Flag_Buffer;
volatile int Index,Index1;
volatile  unsigned char c1;
unsigned int i,j,k;
unsigned long clk;
unsigned int M;
char *txt;


char BT_state;
//char response_rcvd;
//char responseID, response = 0;
int Edge_Detect;


void strConstRamCpy(char *dest, const char *source);
void CRLF(void);
void interrupt(void) ;
void Init_Timer0(void);
void Read_Msg_Eeprom(unsigned char depuis);
void Init_Timer1_125mS (void);    //125mS
void Init_BT_HC06_direct(void); 
void Get_Answer(void);


void interrupt(void)  org 0x04
{
 if ((RCIE_bit==1) &&(RCIF_bit==1))
   {
   // traitement separe des erreurs de COM
      if (RCSTA.OERR==1)    // voir parag 16.1.26 p273
      {
       RCSTA.CREN = 0 ;
       RCSTA.CREN = 1 ;
        CptErr++;
       }
      if(RCSTA.FERR==1 )
      {
      RCSTA.SPEN = 0 ;
      RCSTA.SPEN= 1 ;
      CptErr++;
      }
      c1 = RCREG;
     if (c1==CR)
      {
      Flag_Buffer=1;
      //PIE1.RCIE=0 ; //interdit IT Reception UART
      buffer[i1]=0;
      Index1=i1;
      i1=0;
      c1=0;
     }
     else
     {
        buffer[i1]=c1;
        i1++;
        Index1=i1;
      }
     PIR1.RCIF=0   ;
    }
 

  if( IOCIE_bit && IOCAF2_bit)
  {
      Edge_Detect=1; 
      IOCAF2_bit=0;
      IOCIE_bit=0;
   }
   // ------  timer 1  ----------------
  if( TMR1IF_bit==1)
  {  // Test "Peripheral Interrupt Request Register 1" for Timer1 Flag
     TMR1H= Hi (NbCycles_T1);
     TMR1L= Lo (NbCycles_T1);
     Count1++;
     if (Count1>7)   // 8x125 ms= 1 seconde   et init timer1 à 3035  et prescaler=1/8
       {
        Count1=0;
        Flag_Timer1=1;
      }
      PIR1.TMR1IF=0;
   } 
   
 }

void Get_Answer()
{

 Delay_ms(1500); 
 if (i1>0)           // test sur index car pas de CR sur reponse HC06
 {   buffer[i1+1]=0;     // limite largeur affichage  du nokia=14cars
    if((buffer[0]='O') && (buffer[1]='K')) k++;
    //UART2_Write_Text(buffer); 
  }
  //else
 //  {
  //UART2_Write('A'); UART1_Write('T'); 
  // } 
   Delay_ms(100);
    buffer[0]=0;
    i1=0; c1=0;
    RCIF_bit=0;
    Index1=0;
}      
    



void  Init_BT_HC06_direct()        // en aveugle,sans test reponse
 {
// BT device adresses:  
 // 00:15:83:2B:6D:87 MyPC  OWNPF
 // D8:95:2F:3F:F7:10  Archos43 Android apk
 UART1_Write('A'); UART1_Write('T'); 
 Get_Answer();   //OK
 UART1_Write_Text((const char *)"AT+NAMEHC06-7D69"); //98:D3:31:B1:7D:69
 Get_Answer();     //OKsetname
 UART1_Write_Text((const char *)"AT+PIN1234"); 
 Get_Answer();   //OK19200
 UART1_Write_Text((const char *)"AT+BAUD5"); 
 Get_Answer();  //OK19200
 UART1_Write_Text((const char *)"AT+VERSION");
 Get_Answer();  //OKlinvorV1.80
}    



// --- Copie le texte depuis ROM vers RAM
void strConstRamCpy(char *dest, const char *source) {
  while(*source) *dest++ = *source++ ;
  *dest = 0 ;    // terminateur
}

void CRLF()
{
 UART1_Write(CR);
 UART1_Write(LF);
}


void Read_Msg_Eeprom(unsigned char debut)
{   int i1 ,i;
  i1=debut;
  do
  {
  i = EEPROM_Read(i1);
  if ( i==0) break;
  if ( i1>254) break;
  UART1_Write(i);
  Delay_ms(5);
  i1++;
   }
  while (i!=0) ;
 }

 
 void Init_Timer1_125mS()    //0.992sec
 {
  T1CON=0;
 // T1CON=0b00110000; 
  TMR1CS0_bit=0;   // FOSC internal / 4
  TMR1CS1_bit=0;
  T1CKPS1_bit=1;  //prescal select=11 => 1/8
  T1CKPS0_bit=1;
  T1GCON=0; 
  NbCycles_T1= 3035 ;
  TMR1H= Hi (NbCycles_T1);
  TMR1L= Lo (NbCycles_T1);
   Count1=0; 
  Flag_Timer1=0;
  PIR1.TMR1IF=0;     // Reset Timer1 Flag
  PIE1.TMR1IE=1;  //Enable interrupt TMR1
  TMR1ON_bit=1;
}
  
 

void Separateur(void)
{
         UART1_Write(32);  UART1_Write(';');    UART1_Write(32);
}




void Temperature_Module()
{
// voir  datasheet DS41441B-page 125  fig 15.1

}



void main()
{

                         // voir page 61
  // 0=4xPLL OFF, 1111=IOFS=16Mhz  0=0  00=SCS=config via Conf1 word FOSC<2:0>
  // 0=4xPLL OFF, 1110=IOFS=8Mhz  0=0  00=SCS=config via Conf1 word FOSC<2:0>
  OSCCON=0b01111010;    // choix 16Mhz  internal osc
  ANSELA=0;             // no analog
  ANSELA.ANSA4=1;       // RA4= Analog input
  TRISA= 0b00011111;    // RA0,1,2,3,4 as input     RA5 as output
  WPUA=0b00111111;      // weak pull up on RX & TX  et RA2
  CM1CON0=0;       // disable comparators
  CM1CON1=0;
  CCP1CON=0;       // indispensable pour UART sur RA0
  Reset_BT_HC06=1;

  APFCON=0;
  APFCON.P1BSEL=1;    // pour deconnecter de RA0 mais connecte sur RA4 ???!!
  APFCON.RXDTSEL=0;   // RX sur RA1
  APFCON.TXCKSEL=0;   // TX sur RA0
  
 
  // because power supplu is only 3,3V 
  FVRCON.FVREN=0;       // disable fixed voltage reference     (voir page 124)
  FVRCON.TSEN=0;        // temperature enable=0;
  FVRCON.TSRNG=1;       // temperature range high   car VDD>3,6V
  FVRCON.CDAFVR1=0;     // Comparator & DAC OFF
  FVRCON.CDAFVR0=0;
  FVRCON.ADFVR1=0;     // ref is OFF in case of LM335  2730mV art 0°C
  FVRCON.ADFVR0=0;


  RCSTA=0;
  RCSTA.CREN=1;  //enable receiver
  RCSTA.SPEN=1;  // serial port Pins Enable
  RCSTA.SREN=1;  // single bit receive
  c1 = RCREG;   // RAZ errors
  

   INTCON=0;
   PIR1=0;
   PIR2=0;
   INTCON.PEIE=0;  // disable IT des peripherique voir fig  8.1 p 77
   INTCON.GIE=0;

  txt=&Texte[0];
  UART1_Init(19200);
   // vide tampon fifo
  while(PIR1.RCIF==1) 
  {
   c1 = RCREG;
   }  
   UART_Set_Active(&UART1_Read, &UART1_Write, &UART1_Data_Ready, &UART1_Tx_Idle); // set UART1 active
   UART1_Write(CLS);
   Delay_ms(1000);
   
   
   Flag_Buffer=0;
   Index=0;

   txt=&Texte[0];
   strConstRamCpy(txt, mesg0);
  UART1_Write_Text(txt);
   Delay_ms(1000);

   Read_Msg_Eeprom(0x0000);   txt=&Texte[0];   Delay_ms(1000);
   Read_Msg_Eeprom(0x00E0);   txt=&Texte[0];   Delay_ms(1000);
   CRLF();

      
   Read_Msg_Eeprom(0x0020);
   j=Clock_MHz();    
   WordToStr(j,txt);   UART_Write_Text(txt);   CRLF();
  
   ADC_Init();
   ADCON1.ADPREF1= 0;  // Vref sur VDD si alim 3,3V
   ADCON1.ADPREF0= 0;
   Read_Msg_Eeprom(0x0040);  CRLF();
  
  j=0;
  k=0;
  //CptOV=0;
  //CptFE=0;
  CptErr=0;
  Flag_Buffer=0;
  Flag_Timer0=0;

  
  Read_Msg_Eeprom(0x00A0);  CRLF();
  
  PIE1.RCIE=1;
  PIE1.TMR1IE=0;  // Enable interrupt on PR1=TMR1
  INTCON.PEIE=1;  // autorise IT des peripherique voir fig  8.1 p 77
  INTCON.GIE=1;   // Enable all interrupts (timer1 & UART)
  i1=0;
  buffer[0]=0;
  Index1=0;
  
  PIE1.TMR1IE=0;  //disable interrupt TMR1
  
  Reset_BT_HC06=1;
  Delay_ms(1000); 
  Reset_BT_HC06=0;
  Delay_ms(1000);
  Reset_BT_HC06=1;
  Delay_ms(1000);  
   k=0;
  
  Init_BT_HC06_direct() ;
  CRLF();
 
   if (k>=4)  
   { 
      UART1_Write_Text((const char *)" Init OK  k=");
    }
    else
    {
      UART1_Write_Text((const char *)" Bad  Init k=");
   }  
  WordToStr(k, txt) ;
  UART1_Write_Text(txt);
  CRLF();        
   while(1)
   {

    j=0;
    Index=0;
    Index1=0;
    i1=0;
    Read_Msg_Eeprom(0x0030); CRLF();
    Init_Timer1_125mS ();    //init pour 1 sec et lance timer1
    Flag_Buffer=0;
    Index=0;
    M=ADC_Get_Sample(3);  // lecture AN3 sur RA4
    Read_Msg_Eeprom(0x0050);  
    UART1_Write(TAB);
    WordToStr(M, txt) ;
    UART1_Write_Text(txt);
    CRLF();
    while (Flag_Timer1==0);
   } // while (1)
 }

PIC 16F84A interface with bluetooth bee HC-06

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PIC 16F84A interface with bluetooth bee HC-06

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