swimtracker-firmware/firmware/lib/scale/Scale.h

#include "HX711.h"
#include "ConfigHardware.h"
#include <cstdint>


template<int DIVIDER=128>
class Scale
{
public:
    bool measure(uint16_t & measurementOut) {
        if (hx711_.is_ready())
        {
            long value = hx711_.read_average(CONFIG_MEASUREMENT_AVG_COUNT) - offset_;
            if(value > 0)
                measurementOut = (int16_t)(value / DIVIDER);
            else
                measurementOut = 0;
            return true;
        }
        else
            return false;
    }

    void begin(uint32_t pinDOUT, uint32_t pinSCK) {
        hx711_.begin(pinDOUT, pinSCK);
    };

    void tare(uint32_t numMeasurementsToAverage=50) {
        offset_ = hx711_.read_average(numMeasurementsToAverage);
    }

private:
    HX711 hx711_;
    long offset_ = 0;
};