I am relatively new to coding with an Arduino and have picked the Adafruit library to use in my code. The code works perfectly and displays it well, however the library displays units in standard atomic pressure, meters above sea level, and Celsius. Me being from the USA would make reading the data a lot easier if it were in ft, hectopascals (hPa which is just 1000 Pa), and degrees Fahrenheit. If anyone could help me out it would be greatly appreciated. Thank you
/***************************************************
This is a library for the Adafruit BMP085/BMP180 Barometric Pressure + Temp 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 and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
#ifndef ADAFRUIT_BMP085_H
#define ADAFRUIT_BMP085_H
#if (ARDUINO >= 100)
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include "Wire.h"
#define BMP085_DEBUG 0
#define BMP085_I2CADDR 0x77
#define BMP085_ULTRALOWPOWER 0
#define BMP085_STANDARD 1
#define BMP085_HIGHRES 2
#define BMP085_ULTRAHIGHRES 3
#define BMP085_CAL_AC1 0xAA // R Calibration data (16 bits)
#define BMP085_CAL_AC2 0xAC // R Calibration data (16 bits)
#define BMP085_CAL_AC3 0xAE // R Calibration data (16 bits)
#define BMP085_CAL_AC4 0xB0 // R Calibration data (16 bits)
#define BMP085_CAL_AC5 0xB2 // R Calibration data (16 bits)
#define BMP085_CAL_AC6 0xB4 // R Calibration data (16 bits)
#define BMP085_CAL_B1 0xB6 // R Calibration data (16 bits)
#define BMP085_CAL_B2 0xB8 // R Calibration data (16 bits)
#define BMP085_CAL_MB 0xBA // R Calibration data (16 bits)
#define BMP085_CAL_MC 0xBC // R Calibration data (16 bits)
#define BMP085_CAL_MD 0xBE // R Calibration data (16 bits)
#define BMP085_CONTROL 0xF4
#define BMP085_TEMPDATA 0xF6
#define BMP085_PRESSUREDATA 0xF6
#define BMP085_READTEMPCMD 0x2E
#define BMP085_READPRESSURECMD 0x34
class Adafruit_BMP085 {
public:
Adafruit_BMP085();
boolean begin(uint8_t mode = BMP085_ULTRAHIGHRES); // by default go highres
float readTemperature(void);
int32_t readPressure(void);
int32_t readSealevelPressure(float altitude_meters = 0);
float readAltitude(float sealevelPressure = 101325); // std atmosphere
uint16_t readRawTemperature(void);
uint32_t readRawPressure(void);
private:
int32_t computeB5(int32_t UT);
uint8_t read8(uint8_t addr);
uint16_t read16(uint8_t addr);
void write8(uint8_t addr, uint8_t data);
uint8_t oversampling;
int16_t ac1, ac2, ac3, b1, b2, mb, mc, md;
uint16_t ac4, ac5, ac6;
};
#endif // ADAFRUIT_BMP085_H