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