Diff: Adafruit_10DOF/Adafruit_BMP085_U.h

Revision:

16:5d102be2566c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_10DOF/Adafruit_BMP085_U.h	Wed Oct 07 20:42:51 2015 +0000
@@ -0,0 +1,109 @@
+/***************************************************************************
+  This is a library for the BMP085 pressure sensor
+
+  Designed specifically to work with the Adafruit BMP085 or BMP180 Breakout 
+  ----> http://www.adafruit.com/products/391
+  ----> http://www.adafruit.com/products/1603
+
+  These displays use I2C to communicate, 2 pins are required to interface.
+
+  Adafruit invests time and resources providing this open source code,
+  please support Adafruit andopen-source hardware by purchasing products
+  from Adafruit!
+
+  Written by Kevin Townsend for Adafruit Industries.  
+  BSD license, all text above must be included in any redistribution
+ ***************************************************************************/
+#ifndef __BMP085_H__
+#define __BMP085_H__
+
+#include <Adafruit_Sensor.h>
+
+/*=========================================================================
+    I2C ADDRESS/BITS
+    -----------------------------------------------------------------------*/
+    #define BMP085_ADDRESS                (0xEE)
+/*=========================================================================*/
+
+/*=========================================================================
+    REGISTERS
+    -----------------------------------------------------------------------*/
+    enum
+    {
+      BMP085_REGISTER_CAL_AC1            = 0xAA,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_AC2            = 0xAC,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_AC3            = 0xAE,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_AC4            = 0xB0,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_AC5            = 0xB2,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_AC6            = 0xB4,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_B1             = 0xB6,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_B2             = 0xB8,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_MB             = 0xBA,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_MC             = 0xBC,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CAL_MD             = 0xBE,  // R   Calibration data (16 bits)
+      BMP085_REGISTER_CHIPID             = 0xD0,
+      BMP085_REGISTER_VERSION            = 0xD1,
+      BMP085_REGISTER_SOFTRESET          = 0xE0,
+      BMP085_REGISTER_CONTROL            = 0xF4,
+      BMP085_REGISTER_TEMPDATA           = 0xF6,
+      BMP085_REGISTER_PRESSUREDATA       = 0xF6,
+      BMP085_REGISTER_READTEMPCMD        = 0x2E,
+      BMP085_REGISTER_READPRESSURECMD    = 0x34
+    };
+/*=========================================================================*/
+
+/*=========================================================================
+    MODE SETTINGS
+    -----------------------------------------------------------------------*/
+    typedef enum
+    {
+      BMP085_MODE_ULTRALOWPOWER          = 0,
+      BMP085_MODE_STANDARD               = 1,
+      BMP085_MODE_HIGHRES                = 2,
+      BMP085_MODE_ULTRAHIGHRES           = 3
+    } bmp085_mode_t;
+/*=========================================================================*/
+
+/*=========================================================================
+    CALIBRATION DATA
+    -----------------------------------------------------------------------*/
+    typedef struct
+    {
+      int16_t  ac1;
+      int16_t  ac2;
+      int16_t  ac3;
+      uint16_t ac4;
+      uint16_t ac5;
+      uint16_t ac6;
+      int16_t  b1;
+      int16_t  b2;
+      int16_t  mb;
+      int16_t  mc;
+      int16_t  md;
+    } bmp085_calib_data;
+/*=========================================================================*/
+
+class Adafruit_BMP085_Unified// : public Adafruit_Sensor
+{
+  public:
+    Adafruit_BMP085_Unified(int32_t sensorID = -1);
+  
+    bool  begin(bmp085_mode_t mode = BMP085_MODE_ULTRAHIGHRES);
+    void  getTemperature(float *temp);
+    void  getPressure(float *pressure);
+    float pressureToAltitude(float seaLvel, float atmospheric);
+    float seaLevelForAltitude(float altitude, float atmospheric);
+    // Note that the next two functions are just for compatibility with old
+    // code that passed the temperature as a third parameter.  A newer
+    // calculation is used which does not need temperature.
+    float pressureToAltitude(float seaLevel, float atmospheric, float temp);
+    float seaLevelForAltitude(float altitude, float atmospheric, float temp);
+    bool  getEvent(sensors_event_t*);
+    void  getSensor(sensor_t*);
+
+  private:
+    int32_t computeB5(int32_t ut);
+    int32_t _sensorID;
+};
+
+#endif