openXsensor/oXs_bmp180.h

   1 #ifndef OXS_BMP180_h
   2 #define OXS_BMP180_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 BMP180_ADR 0x77 // I2C address of BMP180
  13
  14 /*=========================================================================
  15     CALIBRATION DATA for BMP180
  16     -----------------------------------------------------------------------*/
  17     typedef struct
  18     {
  19       int16_t  ac1;
  20       int16_t  ac2;
  21       int16_t  ac3;
  22       uint16_t ac4;
  23       uint16_t ac5;
  24       uint16_t ac6;
  25       int16_t  b1;
  26       int16_t  b2;
  27       int16_t  mb;
  28       int16_t  mc;
  29       int16_t  md;
  30     } bmp085_calib_data;
  31 /*=========================================================================*/
  32
  33 class OXS_BMP180 {
  34 public:
  35 #ifdef DEBUG
  36   OXS_BMP180( HardwareSerial &print);
  37 #else
  38   OXS_BMP180( void ) ;
  39 #endif
  40   VARIODATA varioData ;
  41   void setup();
  42   bool  readSensor();
  43   void resetValues();
  44
  45 private:
  46   uint8_t _addr;
  47
  48   uint8_t errorI2C ; //error code returned by I2C::Write and I2C::Read; 0 = no error
  49   bool errorCalibration ; // (true = error)
  50   void SendCommand(byte command);
  51   long getData(byte command, byte del);
  52   void calculateVario() ;
  53   unsigned int low, high;
  54     int32_t D1 ;
  55     int32_t D2 ;
  56     int32_t D2Prev ;
  57     int32_t D2Apply ;
  58     int64_t dT  ;
  59     int32_t TEMP  ;
  60     int64_t OFF, SENS;
  61     int16_t   alt_temp_compensation ;
  62
  63     int32_t altitude  ; // in cm * 100
  64     int32_t altitudeLowPass  ;
  65     int32_t altitudeHighPass  ;
  66     int sensitivityMin ;
  67
  68
  69     unsigned long extended2Micros ; // used to temporarilly save micros() >> 1
  70     unsigned long pressureMicros ; // save time when program send command asking the MS5611 to get the pressure
  71     unsigned long pressureMicrosPrev1 ; // save the previous pressureMicros
  72     unsigned long pressureMicrosPrev2 ; // save the previous of the previous pressureMicros
  73     unsigned long altMillis ;
  74     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)
  75     unsigned long nextAverageAltMillis  ; // save when AverageAltitude has to be calculated
  76
  77     float climbRate2AltFloat  ;
  78     float abs_deltaClimbRate ;
  79
  80 #ifdef DEBUG
  81   HardwareSerial* printer;
  82 #endif
  83 }; // end class OXS_MS5611
  84
  85 #endif // OXS_BMP180
  86
  87
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  89