BMP280.h

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#pragma once
#include <stdio.h>
#include <math.h>
#include <wiringPiI2C.h>
#include "BaseComponent.h"
 
namespace RumPi
{
    //Average sea-level pressure in hPa (ISA standard). Double so it carries the .25 and matches BMP180_SEA_LEVEL.
    constexpr double BMP280_SEA_LEVEL = 1013.25;
 
    // Power mode
    //0   // sleep mode
    //1   // forced mode
    //2   // forced mode
    //3   // normal mode
    constexpr int POWER_MODE = 3;
 
    // Temperature resolution
    //0    // skipped
    //1    // 16 Bit
    //2    // 17 Bit
    //3    // 18 Bit
    //4    // 19 Bit
    //5    // 20 Bit
    constexpr int OSRS_T = 5;
 
    // Pressure resolution
    //0   // pressure measurement skipped
    //1   // 16 Bit ultra low power
    //2   // 17 Bit low power
    //3   // 18 Bit standard resolution
    //4   // 19 Bit high resolution
    //5   // 20 Bit ultra high resolution
    constexpr int OSRS_P = 5;
 
    // Filter settings (0 - 7)
    constexpr int FILTER = 4;
 
    // Standby settings
    //0     // 000 0,5ms
    //1     // 001 62.5 ms
    //2     // 010 125 ms
    //3     // 011 250ms
    //4     // 100 500ms
    //5     // 101 1000ms
    //6     // 110 2000ms
    //7     // 111 4000ms
    constexpr int T_SB = 4;
 
    constexpr int BMP280_REGISTER_DIG_T1 = 0x88;
    constexpr int BMP280_REGISTER_DIG_T2 = 0x8A;
    constexpr int BMP280_REGISTER_DIG_T3 = 0x8C;
    constexpr int BMP280_REGISTER_DIG_P1 = 0x8E;
    constexpr int BMP280_REGISTER_DIG_P2 = 0x90;
    constexpr int BMP280_REGISTER_DIG_P3 = 0x92;
    constexpr int BMP280_REGISTER_DIG_P4 = 0x94;
    constexpr int BMP280_REGISTER_DIG_P5 = 0x96;
    constexpr int BMP280_REGISTER_DIG_P6 = 0x98;
    constexpr int BMP280_REGISTER_DIG_P7 = 0x9A;
    constexpr int BMP280_REGISTER_DIG_P8 = 0x9C;
    constexpr int BMP280_REGISTER_DIG_P9 = 0x9E;
    constexpr int BMP280_REGISTER_CHIPID = 0xD0;
    constexpr int BMP280_REGISTER_VERSION = 0xD1;
    constexpr int BMP280_REGISTER_SOFTRESET = 0xE0;
    constexpr int BMP280_REGISTER_CONTROL = 0xF4;
    constexpr int BMP280_REGISTER_CONFIG = 0xF5;
    constexpr int BMP280_REGISTER_STATUS = 0xF3;
    constexpr int BMP280_REGISTER_TEMPDATA_MSB = 0xFA;
    constexpr int BMP280_REGISTER_TEMPDATA_LSB = 0xFB;
    constexpr int BMP280_REGISTER_TEMPDATA_XLSB = 0xFC;
    constexpr int BMP280_REGISTER_PRESSDATA_MSB = 0xF7;
    constexpr int BMP280_REGISTER_PRESSDATA_LSB = 0xF8;
    constexpr int BMP280_REGISTER_PRESSDATA_XLSB = 0xF9;
 
    class BMP280 : public BaseComponent
    {
    private:
        int CONFIGS;    
        int CTRL_MEAS;  
 
        int myFileDescriptor;   
 
        int myChipID;           
        int myChipVersion;      
 
        double myTemperatureInC;    
        double myPressureInHPA;     
        double myAltitudeInM;       
 
        int myDigT1;    
        int myDigT2;    
        int myDigT3;    
        int myDigP1;    
        int myDigP2;    
        int myDigP3;    
        int myDigP4;    
        int myDigP5;    
        int myDigP6;    
        int myDigP7;    
        int myDigP8;    
        int myDigP9;    
 
        int WriteByteDataToRegister(const int reg, const int value);
 
        int ReadByteDataFromRegister(const int reg);
 
        int ReadWordDataFromRegisterUnsigned(const int reg);
 
        int ReadWordDataFromRegisterSigned(const int reg);
    public:
        BMP280(const int bmpI2CAddress);
 
        virtual ~BMP280();
 
        virtual void TurnOn() override;
 
        virtual void TurnOff() override;
 
        virtual std::string ToString() const override;
 
        virtual void ProcessRawValues() override;
 
        int GetConfigsByte() const;
 
        int GetCtrlMeasByte() const;
 
        int GetFileDescriptor() const;
 
        int GetChipID() const;
 
        int GetChipVersion() const;
 
        double GetTemperature() const;
 
        double GetPressure() const;
 
        double GetAltitude() const;
 
        int GetDigT1() const;
 
        int GetDigT2() const;
 
        int GetDigT3() const;
 
        int GetDigP1() const;
 
        int GetDigP2() const;
 
        int GetDigP3() const;
 
        int GetDigP4() const;
 
        int GetDigP5() const;
 
        int GetDigP6() const;
 
        int GetDigP7() const;
 
        int GetDigP8() const;
 
        int GetDigP9() const;
 
        void SetTemperature(const double temp);
 
        void SetPressure(const double pressure);
 
        void SetAltitude(const double alt);
    };
} // namespace RumPi