Akinori Hashimoto / HC05

Bluetooth module HC-05 Lib. suppotrs printf(); support IrqAttach, with using RTOS. include feature as background rxIrq attach. the lib store rx buf of serial, therefore can have over 16 bytes string. if you want to get string, you call read() or getLine(). read() is ALL string, getLine() is under CR('\r').

Dependencies:   RingBuffer

Dependents:   semaforinoprova

HC05.h

Committer:
AkinoriHashimoto
Date:
2015-10-28
Revision:
3:df094ed45a88
Parent:
2:931bef8c7fac
Child:
4:488e26ebc411

File content as of revision 3:df094ed45a88:

#pragma once

/**
 * @code
#include "mbed.h"
#include "HC05.h"

DigitalOut led[]= {LED1, LED2, LED3, LED4};
HC05 hc05(p9, p10);

void rcvIrq(unsigned int id)
{
    led[0]= !led[0];
    if('2'<=id && id<='4') {   // LED2 ~ 4
        id -= '1';
        led[id]= !led[id];
    }
    return;
}

int main()
{
    hc05.init();
    hc05.setAttachRx(rcvIrq);
    while(true) {
//        hc05.sendLine(hc05.read());
        hc05.sendLine(hc05.getLine());
        wait(10);
    }
}
// EOF
 * @endcode
*/

#include "mbed.h"
#include <string>

/**     Bluetooth module HC05 control class.
 *
 */
class HC05 : public Stream
{
public:
    /** Create Serial port to HC05.
     *  @param TX, RX;              Serial port.
     */
    HC05(PinName tx, PinName rx);

    /** init
     *  @param baud-rate;           Baud rate (bps). 9600, 38,400, 115,200, 230,400
     *  @param bit, parity, stop;   Default: 1Stopbit, NoneParity, 1StopBit.
     *                              -- parity select; N(None), O(Odd), E(Even).
     *  @param CRLN;                true -> CR&LN (\r\n), false -> CR only (\r).
     */
    void init(int baudrate= 115200, int bit=8, int parity=SerialBase::None, int stop=1, bool CRLN=true);


    void setAttachRx(void (*fptr)(unsigned int));
    bool readable();
    string read();
    string getLine();

    void sendLine(string str, bool addCR=true);
//    void sendFloat(float num, string foreword="");    // to use printf()
//    void sendInt(int num, string foreword="");

private:
    Serial hc05;
    string CR;
    string rxStr;

    // RxIrq function pointer as out of class.
    void (*fptrRxIrq)(unsigned int);

    // copy buf of rx to private string.
    void _read();   // copy buf of rx to private string.
    void _readIrq();   // copy buf of rx to private string.

    // virtual func for printf() in Stream-class.
    virtual int _putc(int val);
    virtual int _getc();

};

// EOF