souti/Arduino
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

first commit

Browse Source
This commit is contained in:
Jérôme Delacotte
2025-03-06 11:15:32 +01:00
commit 7b30d6e298
5276 changed files with 2108927 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

478
libraries/Adafruit_BMP085_Unified/Adafruit_BMP085_U.cpp Normal file
View File

@@ -0,0 +1,478 @@
/*!
* @file Adafruit_BMP085_U.cpp
*
* @mainpage Adafruit BMP085 Pressure Sensor
*
* @section intro_sec Introduction
*
* 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!
*
* @section author Author
*
* Written by Kevin Townsend for Adafruit Industries.
*
* @section license License
* BSD license, all text above must be included in any redistribution
*/
#if ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#ifdef __AVR_ATtiny85__
#include "TinyWireM.h"
#define Wire TinyWireM
#else
#include <Wire.h>
#endif
#include <limits.h>
#include <math.h>
#include "Adafruit_BMP085_U.h"
static bmp085_calib_data
_bmp085_coeffs; // Last read accelerometer data will be available here
static uint8_t _bmp085Mode;
#define BMP085_USE_DATASHEET_VALS \
(0) //!< Set to 1 for sanity check, when true, will use values from datasheet
/***************************************************************************
PRIVATE FUNCTIONS
***************************************************************************/
/**************************************************************************/
/*!
@brief Writes an 8 bit value over I2C
*/
/**************************************************************************/
static void writeCommand(byte reg, byte value) {
Wire.beginTransmission((uint8_t)BMP085_ADDRESS);
#if ARDUINO >= 100
Wire.write((uint8_t)reg);
Wire.write((uint8_t)value);
#else
Wire.send(reg);
Wire.send(value);
#endif
Wire.endTransmission();
}
/**************************************************************************/
/*!
@brief Reads an 8 bit value over I2C
*/
/**************************************************************************/
static void read8(byte reg, uint8_t *value) {
Wire.beginTransmission((uint8_t)BMP085_ADDRESS);
#if ARDUINO >= 100
Wire.write((uint8_t)reg);
#else
Wire.send(reg);
#endif
Wire.endTransmission();
Wire.requestFrom((uint8_t)BMP085_ADDRESS, (byte)1);
#if ARDUINO >= 100
*value = Wire.read();
#else
*value = Wire.receive();
#endif
Wire.endTransmission();
}
/**************************************************************************/
/*!
@brief Reads a 16 bit value over I2C
*/
/**************************************************************************/
static void read16(byte reg, uint16_t *value) {
Wire.beginTransmission((uint8_t)BMP085_ADDRESS);
#if ARDUINO >= 100
Wire.write((uint8_t)reg);
#else
Wire.send(reg);
#endif
Wire.endTransmission();
Wire.requestFrom((uint8_t)BMP085_ADDRESS, (byte)2);
#if ARDUINO >= 100
*value = (Wire.read() << 8) | Wire.read();
#else
*value = (Wire.receive() << 8) | Wire.receive();
#endif
Wire.endTransmission();
}
/**************************************************************************/
/*!
@brief Reads a signed 16 bit value over I2C
*/
/**************************************************************************/
static void readS16(byte reg, int16_t *value) {
uint16_t i;
read16(reg, &i);
*value = (int16_t)i;
}
/**************************************************************************/
/*!
@brief Reads the factory-set coefficients
*/
/**************************************************************************/
static void readCoefficients(void) {
#if BMP085_USE_DATASHEET_VALS
_bmp085_coeffs.ac1 = 408;
_bmp085_coeffs.ac2 = -72;
_bmp085_coeffs.ac3 = -14383;
_bmp085_coeffs.ac4 = 32741;
_bmp085_coeffs.ac5 = 32757;
_bmp085_coeffs.ac6 = 23153;
_bmp085_coeffs.b1 = 6190;
_bmp085_coeffs.b2 = 4;
_bmp085_coeffs.mb = -32768;
_bmp085_coeffs.mc = -8711;
_bmp085_coeffs.md = 2868;
_bmp085Mode = 0;
#else
readS16(BMP085_REGISTER_CAL_AC1, &_bmp085_coeffs.ac1);
readS16(BMP085_REGISTER_CAL_AC2, &_bmp085_coeffs.ac2);
readS16(BMP085_REGISTER_CAL_AC3, &_bmp085_coeffs.ac3);
read16(BMP085_REGISTER_CAL_AC4, &_bmp085_coeffs.ac4);
read16(BMP085_REGISTER_CAL_AC5, &_bmp085_coeffs.ac5);
read16(BMP085_REGISTER_CAL_AC6, &_bmp085_coeffs.ac6);
readS16(BMP085_REGISTER_CAL_B1, &_bmp085_coeffs.b1);
readS16(BMP085_REGISTER_CAL_B2, &_bmp085_coeffs.b2);
readS16(BMP085_REGISTER_CAL_MB, &_bmp085_coeffs.mb);
readS16(BMP085_REGISTER_CAL_MC, &_bmp085_coeffs.mc);
readS16(BMP085_REGISTER_CAL_MD, &_bmp085_coeffs.md);
#endif
}
/**************************************************************************/
/*!
*/
/**************************************************************************/
static void readRawTemperature(int32_t *temperature) {
#if BMP085_USE_DATASHEET_VALS
*temperature = 27898;
#else
uint16_t t;
writeCommand(BMP085_REGISTER_CONTROL, BMP085_REGISTER_READTEMPCMD);
delay(5);
read16(BMP085_REGISTER_TEMPDATA, &t);
*temperature = t;
#endif
}
/**************************************************************************/
/*!
*/
/**************************************************************************/
static void readRawPressure(int32_t *pressure) {
#if BMP085_USE_DATASHEET_VALS
*pressure = 23843;
#else
uint8_t p8;
uint16_t p16;
int32_t p32;
writeCommand(BMP085_REGISTER_CONTROL,
BMP085_REGISTER_READPRESSURECMD + (_bmp085Mode << 6));
switch (_bmp085Mode) {
case BMP085_MODE_ULTRALOWPOWER:
delay(5);
break;
case BMP085_MODE_STANDARD:
delay(8);
break;
case BMP085_MODE_HIGHRES:
delay(14);
break;
case BMP085_MODE_ULTRAHIGHRES:
default:
delay(26);
break;
}
read16(BMP085_REGISTER_PRESSUREDATA, &p16);
p32 = (uint32_t)p16 << 8;
read8(BMP085_REGISTER_PRESSUREDATA + 2, &p8);
p32 += p8;
p32 >>= (8 - _bmp085Mode);
*pressure = p32;
#endif
}
/**************************************************************************/
/*!
@brief Compute B5 coefficient used in temperature & pressure calcs.
*/
/**************************************************************************/
int32_t Adafruit_BMP085_Unified::computeB5(int32_t ut) {
int32_t X1 =
(ut - (int32_t)_bmp085_coeffs.ac6) * ((int32_t)_bmp085_coeffs.ac5) >> 15;
int32_t X2 =
((int32_t)_bmp085_coeffs.mc << 11) / (X1 + (int32_t)_bmp085_coeffs.md);
return X1 + X2;
}
/***************************************************************************
CONSTRUCTOR
***************************************************************************/
/**************************************************************************/
/*!
@brief Instantiates a new Adafruit_BMP085_Unified class
*/
/**************************************************************************/
Adafruit_BMP085_Unified::Adafruit_BMP085_Unified(int32_t sensorID) {
_sensorID = sensorID;
}
/***************************************************************************
PUBLIC FUNCTIONS
***************************************************************************/
/**************************************************************************/
/*!
@brief Setups the HW
*/
/**************************************************************************/
bool Adafruit_BMP085_Unified::begin(bmp085_mode_t mode) {
// Enable I2C
Wire.begin();
/* Mode boundary check */
if ((mode > BMP085_MODE_ULTRAHIGHRES) || (mode < 0)) {
mode = BMP085_MODE_ULTRAHIGHRES;
}
/* Make sure we have the right device */
uint8_t id;
read8(BMP085_REGISTER_CHIPID, &id);
if (id != 0x55) {
return false;
}
/* Set the mode indicator */
_bmp085Mode = mode;
/* Coefficients need to be read once */
readCoefficients();
return true;
}
/**************************************************************************/
/*!
@brief Gets the compensated pressure level in kPa
*/
/**************************************************************************/
void Adafruit_BMP085_Unified::getPressure(float *pressure) {
int32_t ut = 0, up = 0, compp = 0;
int32_t x1, x2, b5, b6, x3, b3, p;
uint32_t b4, b7;
/* Get the raw pressure and temperature values */
readRawTemperature(&ut);
readRawPressure(&up);
/* Temperature compensation */
b5 = computeB5(ut);
/* Pressure compensation */
b6 = b5 - 4000;
x1 = (_bmp085_coeffs.b2 * ((b6 * b6) >> 12)) >> 11;
x2 = (_bmp085_coeffs.ac2 * b6) >> 11;
x3 = x1 + x2;
b3 = (((((int32_t)_bmp085_coeffs.ac1) * 4 + x3) << _bmp085Mode) + 2) >> 2;
x1 = (_bmp085_coeffs.ac3 * b6) >> 13;
x2 = (_bmp085_coeffs.b1 * ((b6 * b6) >> 12)) >> 16;
x3 = ((x1 + x2) + 2) >> 2;
b4 = (_bmp085_coeffs.ac4 * (uint32_t)(x3 + 32768)) >> 15;
b7 = ((uint32_t)(up - b3) * (50000 >> _bmp085Mode));
if (b7 < 0x80000000) {
p = (b7 << 1) / b4;
} else {
p = (b7 / b4) << 1;
}
x1 = (p >> 8) * (p >> 8);
x1 = (x1 * 3038) >> 16;
x2 = (-7357 * p) >> 16;
compp = p + ((x1 + x2 + 3791) >> 4);
/* Assign compensated pressure value */
*pressure = compp;
}
/**************************************************************************/
/*!
@brief Reads the temperatures in degrees Celsius
*/
/**************************************************************************/
void Adafruit_BMP085_Unified::getTemperature(float *temp) {
int32_t UT, B5; // following ds convention
float t;
readRawTemperature(&UT);
#if BMP085_USE_DATASHEET_VALS
// use datasheet numbers!
UT = 27898;
_bmp085_coeffs.ac6 = 23153;
_bmp085_coeffs.ac5 = 32757;
_bmp085_coeffs.mc = -8711;
_bmp085_coeffs.md = 2868;
#endif
B5 = computeB5(UT);
t = (B5 + 8) >> 4;
t /= 10;
*temp = t;
}
/**************************************************************************/
/*!
Calculates the altitude (in meters) from the specified atmospheric
pressure (in hPa), and sea-level pressure (in hPa).
@param seaLevel Sea-level pressure in hPa
@param atmospheric Atmospheric pressure in hPa
*/
/**************************************************************************/
float Adafruit_BMP085_Unified::pressureToAltitude(float seaLevel,
float atmospheric) {
// Equation taken from BMP180 datasheet (page 16):
// http://www.adafruit.com/datasheets/BST-BMP180-DS000-09.pdf
// Note that using the equation from wikipedia can give bad results
// at high altitude. See this thread for more information:
// http://forums.adafruit.com/viewtopic.php?f=22&t=58064
return 44330.0 * (1.0 - pow(atmospheric / seaLevel, 0.1903));
}
/**************************************************************************/
/*!
Calculates the altitude (in meters) from the specified atmospheric
pressure (in hPa), and sea-level pressure (in hPa). Note that this
function just calls the overload of pressureToAltitude which takes
seaLevel and atmospheric pressure--temperature is ignored. The original
implementation of this function was based on calculations from Wikipedia
which are not accurate at higher altitudes. To keep compatibility with
old code this function remains with the same interface, but it calls the
more accurate calculation.
@param seaLevel Sea-level pressure in hPa
@param atmospheric Atmospheric pressure in hPa
@param temp Temperature in degrees Celsius
*/
/**************************************************************************/
float Adafruit_BMP085_Unified::pressureToAltitude(float seaLevel,
float atmospheric,
float temp) {
return pressureToAltitude(seaLevel, atmospheric);
}
/**************************************************************************/
/*!
Calculates the pressure at sea level (in hPa) from the specified altitude
(in meters), and atmospheric pressure (in hPa).
@param altitude Altitude in meters
@param atmospheric Atmospheric pressure in hPa
*/
/**************************************************************************/
float Adafruit_BMP085_Unified::seaLevelForAltitude(float altitude,
float atmospheric) {
// Equation taken from BMP180 datasheet (page 17):
// http://www.adafruit.com/datasheets/BST-BMP180-DS000-09.pdf
// Note that using the equation from wikipedia can give bad results
// at high altitude. See this thread for more information:
// http://forums.adafruit.com/viewtopic.php?f=22&t=58064
return atmospheric / pow(1.0 - (altitude / 44330.0), 5.255);
}
/**************************************************************************/
/*!
Calculates the pressure at sea level (in hPa) from the specified altitude
(in meters), and atmospheric pressure (in hPa). Note that this
function just calls the overload of seaLevelForAltitude which takes
altitude and atmospheric pressure--temperature is ignored. The original
implementation of this function was based on calculations from Wikipedia
which are not accurate at higher altitudes. To keep compatibility with
old code this function remains with the same interface, but it calls the
more accurate calculation.
@param altitude Altitude in meters
@param atmospheric Atmospheric pressure in hPa
@param temp Temperature in degrees Celsius
*/
/**************************************************************************/
float Adafruit_BMP085_Unified::seaLevelForAltitude(float altitude,
float atmospheric,
float temp) {
return seaLevelForAltitude(altitude, atmospheric);
}
/**************************************************************************/
/*!
@brief Provides the sensor_t data for this sensor
*/
/**************************************************************************/
void Adafruit_BMP085_Unified::getSensor(sensor_t *sensor) {
/* Clear the sensor_t object */
memset(sensor, 0, sizeof(sensor_t));
/* Insert the sensor name in the fixed length char array */
strncpy(sensor->name, "BMP085", sizeof(sensor->name) - 1);
sensor->name[sizeof(sensor->name) - 1] = 0;
sensor->version = 1;
sensor->sensor_id = _sensorID;
sensor->type = SENSOR_TYPE_PRESSURE;
sensor->min_delay = 0;
sensor->max_value = 1100.0F; // 300..1100 hPa
sensor->min_value = 300.0F;
sensor->resolution = 0.01F; // Datasheet states 0.01 hPa resolution
}
/**************************************************************************/
/*!
@brief Reads the sensor and returns the data as a sensors_event_t
*/
/**************************************************************************/
bool Adafruit_BMP085_Unified::getEvent(sensors_event_t *event) {
float pressure_kPa;
/* Clear the event */
memset(event, 0, sizeof(sensors_event_t));
event->version = sizeof(sensors_event_t);
event->sensor_id = _sensorID;
event->type = SENSOR_TYPE_PRESSURE;
event->timestamp = 0;
getPressure(&pressure_kPa);
event->pressure = pressure_kPa / 100.0F;
return true;
}

154
libraries/Adafruit_BMP085_Unified/Adafruit_BMP085_U.h Normal file
View File

@@ -0,0 +1,154 @@
/*!
* @file Adafruit_BMP085_U.h
*/
#ifndef __BMP085_H__
#define __BMP085_H__
#if (ARDUINO >= 100)
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include <Adafruit_Sensor.h>
#ifdef __AVR_ATtiny85__
#include "TinyWireM.h"
#define Wire TinyWireM
#else
#include <Wire.h>
#endif
/*!
* @brief BMP085 I2C address/bits
*/
#define BMP085_ADDRESS (0x77)
/*!
* @brief BMP085 I2C 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, //!< Register that contains the chip ID
BMP085_REGISTER_VERSION = 0xD1, //!< Register that contains the chip version
BMP085_REGISTER_SOFTRESET = 0xE0, //!< Register for doing a soft reset
BMP085_REGISTER_CONTROL = 0xF4, //!< Control register
BMP085_REGISTER_TEMPDATA = 0xF6, //!< Temperature data register
BMP085_REGISTER_PRESSUREDATA = 0xF6, //!< Pressure data register
BMP085_REGISTER_READTEMPCMD =
0x2E, //!< Read temperature control register value
BMP085_REGISTER_READPRESSURECMD =
0x34 //!< Read pressure control register value
};
/*!
* @brief BMP085 mode settings
*/
typedef enum {
BMP085_MODE_ULTRALOWPOWER = 0,
BMP085_MODE_STANDARD = 1,
BMP085_MODE_HIGHRES = 2,
BMP085_MODE_ULTRAHIGHRES = 3
} bmp085_mode_t;
/*=========================================================================*/
/*!
* @brief Calibration data
*/
typedef struct {
int16_t ac1; //!< R calibration coefficient (16-bits)
int16_t ac2; //!< R calibration coefficient (16-bits)
int16_t ac3; //!< R calibration coefficient (16-bits)
uint16_t ac4; //!< R calibration coefficient (16-bits)
uint16_t ac5; //!< R calibration coefficient (16-bits)
uint16_t ac6; //!< R calibration coefficient (16-bits)
int16_t b1; //!< R calibration coefficient (16-bits)
int16_t b2; //!< R calibration coefficient (16-bits)
int16_t mb; //!< R calibration coefficient (16-bits)
int16_t mc; //!< R calibration coefficient (16-bits)
int16_t md; //!< R calibration coefficient (16-bits)
} bmp085_calib_data;
/*!
* @brief Class that stores state and functions for interacting with BMP183
*/
class Adafruit_BMP085_Unified : public Adafruit_Sensor {
public:
Adafruit_BMP085_Unified(
int32_t sensorID = -1); //!< @param sensorID ID of the BMP085 sensor
/*!
* @brief Starts I2C connection
* @param mode Mode to set, ultra high-res by default
* @return Returns true if successful
*/
bool begin(bmp085_mode_t mode = BMP085_MODE_ULTRAHIGHRES);
/*!
* @brief Gets the temperature over I2C from the BMP085
* @param temp Temperature
* @return Returns the temperature
*/
void getTemperature(float *temp);
/*!
* @brief Gets the pressure over I2C from the BMP085
* @param pressure Pressure
* @return Returns the pressure
*/
void getPressure(float *pressure);
/*!
* @brief Calculates absolute pressure
* @param seaLevel Pressure at sea level
* @param atmospheric measured pressure
* @return Absolute altitude
*/
float pressureToAltitude(float seaLevel, float atmospheric);
/*!
* @brief Calculates pressure at sea level
* @param altitude Altitude
* @param atmospheric measured pressure
* @return Pressure at sea level
*/
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.
/*!
* @brief Calculates absolute pressure
* @param seaLevel Pressure at sea level
* @param atmospheric Measured pressure
* @param temp Temperature
* @return Absolute altitude
*/
float pressureToAltitude(float seaLevel, float atmospheric, float temp);
/*!
* @brief Calculates pressure at sea level
* @param altitude Altitude
* @param atmospheric measured pressure
* @param temp Temperature
* @return Pressure at sea level
*/
float seaLevelForAltitude(float altitude, float atmospheric, float temp);
/*!
* @brief Used to read the sensor
* @return Returns an event
*/
bool getEvent(sensors_event_t *);
void getSensor(sensor_t *);
private:
int32_t computeB5(int32_t ut);
int32_t _sensorID;
};
#endif

27
libraries/Adafruit_BMP085_Unified/README.md Normal file
View File

@@ -0,0 +1,27 @@
# Adafruit Unified BMP085/BMP180 Driver (Barometric Pressure Sensor) [![Build Status](https://github.com/adafruit/Adafruit_BMP085_Unified/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/Adafruit_BMP085_Unified/actions)[![Documentation](https://github.com/adafruit/ci-arduino/blob/master/assets/doxygen_badge.svg)](http://adafruit.github.io/Adafruit_BMP085_Unified/html/index.html)
This driver is for the Adafruit BMP085 Breakout (http://www.adafruit.com/products/391) or BMP180 breakout (http://www.adafruit.com/products/1603), and is based on Adafruit's Unified Sensor Library (Adafruit_Sensor).
## About the BMP085 / BMP180 ##
This precision sensor from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. Because pressure changes with altitude you can also use it as an altimeter!
## What is the Adafruit Unified Sensor Library? ##
The Adafruit Unified Sensor Library ([Adafruit_Sensor](https://github.com/adafruit/Adafruit_Sensor)) provides a common interface and data type for any supported sensor. It defines some basic information about the sensor (sensor limits, etc.), and returns standard SI units of a specific type and scale for each supported sensor type.
It provides a simple abstraction layer between your application and the actual sensor HW, allowing you to drop in any comparable sensor with only one or two lines of code to change in your project (essentially the constructor since the functions to read sensor data and get information about the sensor are defined in the base Adafruit_Sensor class).
This is imporant useful for two reasons:
1.) You can use the data right away because it's already converted to SI units that you understand and can compare, rather than meaningless values like 0..1023.
2.) Because SI units are standardised in the sensor library, you can also do quick sanity checks when working with new sensors, or drop in any comparable sensor if you need better sensitivity or if a lower cost unit becomes available, etc.
Light sensors will always report units in lux, gyroscopes will always report units in rad/s, etc. ... freeing you up to focus on the data, rather than digging through the datasheet to understand what the sensor's raw numbers really mean.
## About this Driver ##
Adafruit invests time and resources providing this open source code. Please support Adafruit and open-source hardware by purchasing products from Adafruit!
Written by Kevin (KTOWN) Townsend for Adafruit Industries.

132
libraries/Adafruit_BMP085_Unified/examples/sensorapi/sensorapi.pde Normal file
View File

@@ -0,0 +1,132 @@
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP085_U.h>
/* This driver uses the Adafruit unified sensor library (Adafruit_Sensor),
which provides a common 'type' for sensor data and some helper functions.
To use this driver you will also need to download the Adafruit_Sensor
library and include it in your libraries folder.
You should also assign a unique ID to this sensor for use with
the Adafruit Sensor API so that you can identify this particular
sensor in any data logs, etc. To assign a unique ID, simply
provide an appropriate value in the constructor below (12345
is used by default in this example).
Connections
===========
Connect SCL to analog 5
Connect SDA to analog 4
Connect VDD to 3.3V DC
Connect GROUND to common ground
History
=======
2013/JUN/17 - Updated altitude calculations (KTOWN)
2013/FEB/13 - First version (KTOWN)
*/
Adafruit_BMP085_Unified bmp = Adafruit_BMP085_Unified(10085);
/**************************************************************************/
/*
Displays some basic information on this sensor from the unified
sensor API sensor_t type (see Adafruit_Sensor for more information)
*/
/**************************************************************************/
void displaySensorDetails(void)
{
sensor_t sensor;
bmp.getSensor(&sensor);
Serial.println("------------------------------------");
Serial.print ("Sensor: "); Serial.println(sensor.name);
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" hPa");
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" hPa");
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" hPa");
Serial.println("------------------------------------");
Serial.println("");
delay(500);
}
/**************************************************************************/
/*
Arduino setup function (automatically called at startup)
*/
/**************************************************************************/
void setup(void)
{
Serial.begin(9600);
Serial.println("Pressure Sensor Test"); Serial.println("");
/* Initialise the sensor */
if(!bmp.begin())
{
/* There was a problem detecting the BMP085 ... check your connections */
Serial.print("Ooops, no BMP085 detected ... Check your wiring or I2C ADDR!");
while(1);
}
/* Display some basic information on this sensor */
displaySensorDetails();
}
/**************************************************************************/
/*
Arduino loop function, called once 'setup' is complete (your own code
should go here)
*/
/**************************************************************************/
void loop(void)
{
/* Get a new sensor event */
sensors_event_t event;
bmp.getEvent(&event);
/* Display the results (barometric pressure is measure in hPa) */
if (event.pressure)
{
/* Display atmospheric pressue in hPa */
Serial.print("Pressure: ");
Serial.print(event.pressure);
Serial.println(" hPa");
/* Calculating altitude with reasonable accuracy requires pressure *
* sea level pressure for your position at the moment the data is *
* converted, as well as the ambient temperature in degress *
* celcius. If you don't have these values, a 'generic' value of *
* 1013.25 hPa can be used (defined as SENSORS_PRESSURE_SEALEVELHPA *
* in sensors.h), but this isn't ideal and will give variable *
* results from one day to the next. *
* *
* You can usually find the current SLP value by looking at weather *
* websites or from environmental information centers near any major *
* airport. *
* *
* For example, for Paris, France you can check the current mean *
* pressure and sea level at: http://bit.ly/16Au8ol */
/* First we get the current temperature from the BMP085 */
float temperature;
bmp.getTemperature(&temperature);
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println(" C");
/* Then convert the atmospheric pressure, and SLP to altitude */
/* Update this next line with the current SLP for better results */
float seaLevelPressure = SENSORS_PRESSURE_SEALEVELHPA;
Serial.print("Altitude: ");
Serial.print(bmp.pressureToAltitude(seaLevelPressure,
event.pressure));
Serial.println(" m");
Serial.println("");
}
else
{
Serial.println("Sensor error");
}
delay(1000);
}

10
libraries/Adafruit_BMP085_Unified/library.properties Normal file
View File

@@ -0,0 +1,10 @@
name=Adafruit BMP085 Unified
version=1.1.3
author=Adafruit
maintainer=Adafruit <info@adafruit.com>
sentence=Unified sensor driver for Adafruit's BMP085 & BMP180 breakouts
paragraph=Unified sensor driver for Adafruit's BMP085 & BMP180 breakouts
category=Sensors
url=https://github.com/adafruit/Adafruit_BMP085_Unified
architectures=*
depends=Adafruit Unified Sensor