#ifndef _HX710B_H_
#define _HX710B_H_

#include "Arduino.h"
#include "stdlib.h"
#include "stdio.h"

#define NOP             __asm__("nop\n\t");
#define halt_1micros    NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP NOP

#define HX710B_DIFF1    25      // data rate 10Hz
#define HX710B_TEMP     26      // data rate 40Hz
#define HX710B_DIFF2    27      // data rate 40Hz

#define HX710B_DEFAULT_MODE     HX710B_DIFF2


#define NO_PIN_DEFINED      255
/* Status Reply */

#define HX710B_OK       0x00U
#define HX710B_ERROR    0x01U
#define HX710B_BUSY     0x02U
#define HX710B_TIMEOUT  0x03U

class HX710B{

    private :
        uint8_t SCK_pin = NO_PIN_DEFINED,
                DO_pin  = NO_PIN_DEFINED;
        uint8_t mode;
        void (*delay_)(unsigned long time_) = NULL;
        unsigned long (*tick)(void) = NULL;
        
        void halt_ ( unsigned long time_);
        unsigned long getTick(void);

    public :
        
        HX710B(uint8_t sck_pin = NO_PIN_DEFINED, uint8_t do_pin = NO_PIN_DEFINED, uint8_t mode = HX710B_DEFAULT_MODE);
        ~HX710B();
        uint8_t init(void);
        uint8_t setMode(uint8_t mode_, unsigned long timeout_ = 500UL);
        uint8_t read(uint32_t *data, unsigned long timeout_ = 500UL);
        uint8_t isReady(unsigned long timeout_ = 500UL);

        void attachDelay(void (*delay__)(unsigned long ti));
        void attachTick(unsigned long (*tick_)(void));
};

#endif