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This commit is contained in:
Ladyada
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4 changed files with 77 additions and 24 deletions
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@ -1,16 +1,27 @@
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// This is a simple but accurate BMP085 sensor library that doesn't suck
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// Does high res temperature, pressure and altitude calculations based on
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// the datasheet documentation
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// (c) adafruit - MIT license - https://github.com/adafruit/BMP085-Library
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/***************************************************
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This is a library for the BMP085 Barometric Pressure & Temp Sensor
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#include "BMP085.h"
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Designed specifically to work with the Adafruit BMP085 Breakout
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----> https://www.adafruit.com/products/391
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These displays use I2C to communicate, 2 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#include "Adafruit_BMP085.h"
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#include <util/delay.h>
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BMP085::BMP085() {
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Adafruit_BMP085::Adafruit_BMP085() {
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}
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void BMP085::begin(uint8_t mode) {
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void Adafruit_BMP085::begin(uint8_t mode) {
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if (mode > BMP085_ULTRAHIGHRES)
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mode = BMP085_ULTRAHIGHRES;
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oversampling = mode;
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@ -48,7 +59,7 @@ void BMP085::begin(uint8_t mode) {
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#endif
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}
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uint16_t BMP085::readRawTemperature(void) {
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uint16_t Adafruit_BMP085::readRawTemperature(void) {
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write8(BMP085_CONTROL, BMP085_READTEMPCMD);
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_delay_ms(5);
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#if BMP085_DEBUG == 1
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@ -57,7 +68,7 @@ uint16_t BMP085::readRawTemperature(void) {
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return read16(BMP085_TEMPDATA);
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}
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uint32_t BMP085::readRawPressure(void) {
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uint32_t Adafruit_BMP085::readRawPressure(void) {
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uint32_t raw;
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write8(BMP085_CONTROL, BMP085_READPRESSURECMD + (oversampling << 6));
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@ -82,7 +93,7 @@ uint32_t BMP085::readRawPressure(void) {
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}
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int32_t BMP085::readPressure(void) {
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int32_t Adafruit_BMP085::readPressure(void) {
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int32_t UT, UP, B3, B5, B6, X1, X2, X3, p;
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uint32_t B4, B7;
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@ -168,7 +179,7 @@ int32_t BMP085::readPressure(void) {
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}
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float BMP085::readTemperature(void) {
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float Adafruit_BMP085::readTemperature(void) {
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int32_t UT, X1, X2, B5; // following ds convention
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float temp;
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@ -193,7 +204,7 @@ float BMP085::readTemperature(void) {
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return temp;
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}
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float BMP085::readAltitude(float sealevelPressure) {
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float Adafruit_BMP085::readAltitude(float sealevelPressure) {
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float altitude;
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float pressure = readPressure();
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@ -206,7 +217,7 @@ float BMP085::readAltitude(float sealevelPressure) {
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/*********************************************************************/
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uint8_t BMP085::read8(uint8_t a) {
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uint8_t Adafruit_BMP085::read8(uint8_t a) {
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uint8_t ret;
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Wire.beginTransmission(BMP085_I2CADDR); // start transmission to device
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@ -229,7 +240,7 @@ uint8_t BMP085::read8(uint8_t a) {
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return ret;
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}
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uint16_t BMP085::read16(uint8_t a) {
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uint16_t Adafruit_BMP085::read16(uint8_t a) {
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uint16_t ret;
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Wire.beginTransmission(BMP085_I2CADDR); // start transmission to device
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@ -256,7 +267,7 @@ uint16_t BMP085::read16(uint8_t a) {
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return ret;
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}
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void BMP085::write8(uint8_t a, uint8_t d) {
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void Adafruit_BMP085::write8(uint8_t a, uint8_t d) {
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Wire.beginTransmission(BMP085_I2CADDR); // start transmission to device
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#if (ARDUINO >= 100)
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Wire.write(a); // sends register address to read from
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@ -1,6 +1,18 @@
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// BMP085 Pressure/Temperature (Altimeter) sensor
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/***************************************************
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This is a library for the BMP085 Barometric Pressure & Temp Sensor
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// MIT license
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Designed specifically to work with the Adafruit BMP085 Breakout
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----> https://www.adafruit.com/products/391
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These displays use I2C to communicate, 2 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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#if (ARDUINO >= 100)
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#include "Arduino.h"
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@ -36,9 +48,9 @@
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#define BMP085_READPRESSURECMD 0x34
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class BMP085 {
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class Adafruit_BMP085 {
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public:
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BMP085();
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Adafruit_BMP085();
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void begin(uint8_t mode = BMP085_ULTRAHIGHRES); // by default go highres
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float readTemperature(void);
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int32_t readPressure(void);
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23
README.txt
23
README.txt
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@ -1,7 +1,22 @@
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This is an Arduino library for the BMP085 barometric pressure/temperature/altitude sensors.
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This is a library for the Adafruit BMP085 Barometric Pressure + Temp sensor
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Pick one up at http://www.adafruit.com/products/391
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Designed specifically to work with the Adafruit BMP085 Breakout
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----> https://www.adafruit.com/products/391
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To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder BMP085. Check that the BMP085 folder contains BMP085.cpp and BMP085.h
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These displays use I2C to communicate, 2 pins are required to interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Place the BMP085 library folder your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.
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Check out the links above for our tutorials and wiring diagrams
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder Adafruit_BMP085. Check that the Adafruit_BMP085 folder contains Adafruit_BMP085.cpp and Adafruit_BMP085.h
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Place the Adafruit_BMP085 library folder your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.
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@ -1,6 +1,21 @@
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#include <Wire.h>
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#include <BMP085.h>
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#include <Adafruit_BMP085.h>
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/***************************************************
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This is an example for the BMP085 Barometric Pressure & Temp Sensor
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Designed specifically to work with the Adafruit BMP085 Breakout
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----> https://www.adafruit.com/products/391
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These displays use I2C to communicate, 2 pins are required to
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interface
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, all text above must be included in any redistribution
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****************************************************/
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// Connect VCC of the BMP085 sensor to 3.3V (NOT 5.0V!)
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// Connect GND to Ground
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