GY-63_MS5611/libraries/pressure/pressure.h

#pragma once
//
//    FILE: pressure.h
//  AUTHOR: Rob Tillaart
// VERSION: 0.2.1
// PURPOSE: Arduino library for pressure conversion
//     URL: https://github.com/RobTillaart/pressure
//
// HISTORY
//  0.1.0  2021-11-25   Initial version
//  0.2.0  2021-11-25   Fix formulas
//  0.2.1  2021-12-23   update library.json, license
//                      add experimental gas law.


#define PRESSURE_LIB_VERSION        (F("0.2.1"))


//  CONSTANTS NEED TO BE VERIFIED
//  Temperature 25°C ?

// CONSTANTS SETTERS
#define BAR2MILLIBAR       1000
#define ATM2MILLIBAR       1013.25
#define PSI2MILLIBAR       68.9475729318
#define DYNES2MILLIBAR     0.001
#define INHG2MILLIBAR      33.85355
#define INH2O2MILLIBAR     2.4908890833333
#define PASCAL2MILLIBAR    0.01
#define TORR2MILLIBAR      1.33322368
#define CMHG2MILLIBAR      13.3322368
#define CMH2O2MILLIBAR     0.980665
#define MSW2MILLIBAR       0.01

// CONSTANTS GETTERS
#define MILLIBAR2BAR       0.001
#define MILLIBAR2ATM       9.86923267e-4
#define MILLIBAR2PSI       0.0145037738
#define MILLIBAR2DYNES     1000
#define MILLIBAR2INHG      2.9539e-2
#define MILLIBAR2INH2O     0.40146307866177
#define MILLIBAR2PASCAL    100
#define MILLIBAR2TORR      0.750061683
#define MILLIBAR2CMHG      0.0750061683
#define MILLIBAR2CMH2O     1.0197162129779 
#define MILLIBAR2MSW       100


class pressure
{
public:
  //  CONSTRUCTOR
  pressure(float value = 0)       { _pressure = value; };


  void  setMilliBar(float value)  { _pressure = value; };
  void  setBar(float value)       { _pressure = value * BAR2MILLIBAR; };
  void  setPSI(float value)       { _pressure = value * PSI2MILLIBAR; };
  void  setATM(float value)       { _pressure = value * ATM2MILLIBAR; }
  void  setDynes(float value)     { _pressure = value * DYNES2MILLIBAR; }
  void  setInchHg(float value)    { _pressure = value * INHG2MILLIBAR; }
  void  setInchH2O(float value)   { _pressure = value * INH2O2MILLIBAR; }
  void  setPascal(float value)    { _pressure = value * PASCAL2MILLIBAR; }
  void  setTORR(float value)      { _pressure = value * TORR2MILLIBAR; }
  void  setCmHg(float value)      { _pressure = value * CMHG2MILLIBAR; }
  void  setCmH2O(float value)     { _pressure = value * CMH2O2MILLIBAR; }
  void  setMSW(float value)       { _pressure = value * MSW2MILLIBAR; }


  float getMilliBar()  { return _pressure; };
  float getBar()       { return _pressure * MILLIBAR2BAR; };
  float getPSI()       { return _pressure * MILLIBAR2PSI; };
  float getATM()       { return _pressure * MILLIBAR2ATM; }
  float getDynes()     { return _pressure * MILLIBAR2DYNES; }
  float getInchHg()    { return _pressure * MILLIBAR2INHG; }
  float getInchH2O()   { return _pressure * MILLIBAR2INH2O; }
  float getPascal()    { return _pressure * MILLIBAR2PASCAL; }
  float getTORR()      { return _pressure * MILLIBAR2TORR; }
  float getCmHg()      { return _pressure * MILLIBAR2CMHG; }
  float getCmH2O()     { return _pressure * MILLIBAR2CMH2O; }
  float getMSW()       { return _pressure * MILLIBAR2MSW; }


  // EXPERIMENTAL
  // temperature in Kelvin!
  void change(float T1, float T2, float V1, float V2, float N1, float N2)
  {
    changeT(T1, T2);
    changeV(V1, V2);
    changeN(N1, N2);
  }

  // temperature in Kelvin!
  void changeT(float T1, float T2)
  {
    if ((T1 != T2) && (T1 > 0) && (T2 > 0)) _pressure *= (T2 / T1);
  }


  void changeV(float V1, float V2)
  {
    if ((V1 != V2) && (V1 > 0) && (V2 > 0)) _pressure *= (V1 / V2);
  }


  void changeN(float N1, float N2)
  {
    if ((N1 != N2) && (N1 > 0) && (N2 > 0)) _pressure *= (N2 / N1);
  }


private:
  float    _pressure;
};


// -- END OF FILE --