openXsensor/oXs_bmp280.h

   1 #ifndef OXS_BMP280_h
   2 #define OXS_BMP280_h
   3
   4
   5 #include "Arduino.h"
   6 #include "oXs_config_basic.h"
   7 #include "oXs_config_advanced.h"
   8 #include "oXs_config_macros.h"
   9 #include "I2C.h"
  10 #include "oXs_ms5611.h"
  11
  12 #define BMP280_ADR 0x77 // I2C address of BMP280 (can also be 0x76
  13
  14 /*=========================================================================
  15     CALIBRATION DATA for BMP280
  16     -----------------------------------------------------------------------*/
  17     typedef struct
  18     {
  19       uint16_t  dig_T1;
  20       int16_t  dig_T2;
  21       int16_t  dig_T3;
  22       uint16_t dig_P1;
  23       int16_t dig_P2;
  24       int16_t dig_P3;
  25       int16_t  dig_P4;
  26       int16_t  dig_P5;
  27       int16_t  dig_P6;
  28       int16_t  dig_P7;
  29       int16_t  dig_P8;
  30       int16_t  dig_P9;
  31     } BMP280_CALIB_DATA;
  32 /*=========================================================================*/
  33
  34 class OXS_BMP280 {
  35 public:
  36 #ifdef DEBUG
  37   OXS_BMP280( HardwareSerial &print);
  38 #else
  39   OXS_BMP280( void ) ;
  40 #endif
  41   VARIODATA varioData ;
  42   void setup();
  43   bool  readSensor();
  44   void resetValues();
  45
  46 private:
  47   uint8_t _addr;
  48
  49   uint8_t errorI2C ; //error code returned by I2C::Write and I2C::Read; 0 = no error
  50   bool errorCalibration ; // (true = error)
  51   void SendCommand(byte command);
  52   long getData(byte command, byte del);
  53   void calculateVario() ;
  54    uint16_t low, high;
  55 /*
  56     int32_t D1 ;
  57     int32_t D2 ;
  58     int32_t D2Prev ;
  59     int32_t D2Apply ;
  60     int64_t dT  ;
  61     int32_t TEMP  ;
  62     int64_t OFF, SENS;
  63     int16_t   alt_temp_compensation ;
  64 */
  65     int32_t altitude  ; // in cm * 100
  66     int32_t altitudeLowPass  ;
  67     int32_t altitudeHighPass  ;
  68     int sensitivityMin ;
  69
  70
  71     unsigned long extended2Micros ; // used to temporarilly save micros() >> 1
  72     unsigned long pressureMicros ; // save time when program send command asking the MS5611 to get the pressure
  73     unsigned long pressureMicrosPrev1 ; // save the previous pressureMicros
  74     unsigned long pressureMicrosPrev2 ; // save the previous of the previous pressureMicros
  75     unsigned long altMillis ;
  76     unsigned long nextAltMillis   ;  // save when Altitude has to be calculated; altitude is available only after 3200 in order to get a stable value (less temperature drift)
  77     unsigned long nextAverageAltMillis  ; // save when AverageAltitude has to be calculated
  78
  79     float climbRate2AltFloat  ;
  80
  81     float abs_deltaClimbRate ;
  82
  83 #ifdef DEBUG
  84   HardwareSerial* printer;
  85 #endif
  86 }; // end class OXS_BMP280
  87
  88
  89 #endif // OXS_BMP280
  90
  91
  92
  93