File content as of revision 2:ed17e258da0d:

/*
* G3: WATERPLAY
*/

#include "SalinitySensor.h"
#include "mbed.h"

SalinitySensor::SalinitySensor(
    mbed::Serial &serial,
    PinName pin,
    double const_voltage,
    double const_converter,
    double const_multiplier,
    double const_lower_boundary,
    double const_upper_boundary
):
    _serial(serial),
    _analog_in(pin),
    _const_voltage(const_voltage),
    _const_converter(const_converter),
    _const_multiplier(const_multiplier),
    _const_lower_boundary(const_lower_boundary),
    _const_upper_boundary(const_upper_boundary),
    _reading(0.0),
    _voltage(0.0),
    _salinity(0.0),
    _status(0.0)
{
    this->reload();
    
}

void SalinitySensor::reload()
{
    // the reading from sensor.
    this->_reading = this->_analog_in.read();
    // converted voltage.
    this->_voltage = 
        this->_reading *
        this->_const_voltage *
        this->_const_converter;
    // the salinity value.
    this->_salinity = 
        this->_voltage *
        this->_const_multiplier;
        
    this->_status = 0.0;
    if(this->_salinity < this->_const_lower_boundary){
        this->_status = this->_salinity - this->_const_lower_boundary;
    } else if(this->_salinity > this->_const_upper_boundary){
        this->_status = this->_const_lower_boundary - this->_salinity;
    }
    
    _serial.printf(
        "\tsalinity: %5.4F | %5.4F | %5.4F\n\r",
        this->_reading,
        this->_voltage,
        this->_salinity
    );
}

double SalinitySensor::getReading()
{
    return(this->_reading);
}

double SalinitySensor::getVoltage()
{
    return(this->_voltage);
}

double SalinitySensor::getSalinity()
{
    return(this->_salinity);
}

double SalinitySensor::getStatus()
{
    return(this->_status);
}