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libraries/Adafruit_BMP183_Library/Adafruit_BMP183.h

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+/*!
+ * @file Adafruit_BMP183.h
+ */
+
+#ifndef ADAFRUIT_BMP183_H
+#define ADAFRUIT_BMP183_H
+
+#include "Arduino.h"
+#include "SPI.h"
+
+// use the 'default' datasheet numbers to test calculations
+#define BMP183_DEBUG 0 //!< Enables or disables debug mode
+
+/** Registers **/
+enum {
+  BMP183_REGISTER_CAL_AC1 = 0xAA, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_AC2 = 0xAC, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_AC3 = 0xAE, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_AC4 = 0xB0, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_AC5 = 0xB2, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_AC6 = 0xB4, // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_B1 = 0xB6,  // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_B2 = 0xB8,  // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_MB = 0xBA,  // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_MC = 0xBC,  // R   Calibration data (16 bits)
+  BMP183_REGISTER_CAL_MD = 0xBE,  // R   Calibration data (16 bits)
+  BMP183_REGISTER_CHIPID = 0xD0,
+  BMP183_REGISTER_VERSION = 0xD1,
+  BMP183_REGISTER_SOFTRESET = 0xE0,
+  BMP183_REGISTER_CONTROL = 0xF4,
+  BMP183_REGISTER_TEMPDATA = 0xF6,
+  BMP183_REGISTER_PRESSUREDATA = 0xF6,
+  BMP183_REGISTER_READTEMPCMD = 0x2E,
+  BMP183_REGISTER_READPRESSURECMD = 0x34
+};
+
+/** Mode Settings **/
+typedef enum {
+  BMP183_MODE_ULTRALOWPOWER = 0,
+  BMP183_MODE_STANDARD = 1,
+  BMP183_MODE_HIGHRES = 2,
+  BMP183_MODE_ULTRAHIGHRES = 3
+} bmp183_mode_t;
+
+/*!
+ *  @brief  Class that stores state and functions for interacting with
+ *          BMP183
+ */
+class Adafruit_BMP183 {
+public:
+  Adafruit_BMP183(int8_t SPICS, SPIClass *theSPI = &SPI);
+  Adafruit_BMP183(int8_t SPICLK, int8_t SPIMISO, int8_t SPIMOSI, int8_t SPICS);
+
+  boolean
+  begin(bmp183_mode_t mode = BMP183_MODE_ULTRAHIGHRES); // by default go highres
+  float getTemperature();
+  int32_t getPressure();
+  float getAltitude(float sealevelPressure = 101325); // std atmosphere
+  uint16_t readRawTemperature();
+  uint32_t readRawPressure();
+  SPIClass *_spi; //!< pointer to SPI object
+
+private:
+  uint8_t SPIxfer(uint8_t x);
+  uint8_t read8(uint8_t addr);
+  uint16_t read16(uint8_t addr);
+  void write8(uint8_t addr, uint8_t data);
+
+  int8_t _cs, _clk, _miso, _mosi;
+
+  uint8_t oversampling;
+
+  int16_t ac1, ac2, ac3, b1, b2, mb, mc, md;
+  uint16_t ac4, ac5, ac6;
+};
+
+#endif //  ADAFRUIT_BMP183_H