scale/src/scale.h

#ifndef SCALE_H
#define SCALE_H

#include <HX711.h>
#include <EEPROMex.h>

#define e_scale   0
#define e_calib_w 8
#define e_gain    10

#define none 0
#define tar  1
#define cal  2
#define shift_element 3

#define delay_vypis 800

#define NUMBER_OF_READINGS 30

class Scale {
private:
    HX711 hx711;

    double sum = 0;
    long sum_raw = 0;
    int count = 0;
    double average_gram = 0;
    long average_raw = 0;
    double EPSILON = 0.01;

    long raw;

    long offset = 0;
    double scaled_weight = 15940.0; // aprox. 15 g
    double actual_gram;

    const int out = 2;
    const int clck = 3;

public:
    void init();
    long init_reading();
    void read();
    void tare();
    void calibrate();

    long get_raw() const {
        return raw;
    }
    
    long get_average_raw() const {
        return average_raw;
    }
    
    long get_offset() const {
        return offset;
    }

    int get_calibration_weight() const {
        return EEPROM.readInt(e_calib_w);
    }

    double get_weight() const {
        return scaled_weight;
    }

    double get_actual_gram() const {
        return actual_gram;
    }

    double get_average_grain() const {
        return average_gram / 0.06479891;
    }

    double get_average_gram() const {
        return average_gram;
    }
};

#endif