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tzikistzikis
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Added Ardusat's libraries
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‎extra-libraries/ArduSat-I2Csensors/bmp085.cpp

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/*
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bmp085.cpp
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libary for using the I2C bmp085 pressure sensor
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(c) Written by Jeroen Cappaert for NanoSatisfi, August 2012
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*/
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#include <Arduino.h>
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#include "bmp085.h"
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#include <Wire.h>
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//Constructor
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bmp085::bmp085()
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{
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barOSS = 2;
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}
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//configure barometer
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void bmp085::configBaro()
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{
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ac1 = bmp085ReadInt(BAR_ADDR, 0xAA);
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ac2 = bmp085ReadInt(BAR_ADDR, 0xAC);
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ac3 = bmp085ReadInt(BAR_ADDR, 0xAE);
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ac4 = bmp085ReadInt(BAR_ADDR, 0xB0);
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ac5 = bmp085ReadInt(BAR_ADDR, 0xB2);
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ac6 = bmp085ReadInt(BAR_ADDR, 0xB4);
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b1 = bmp085ReadInt(BAR_ADDR, 0xB6);
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b2 = bmp085ReadInt(BAR_ADDR, 0xB8);
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mb = bmp085ReadInt(BAR_ADDR, 0xBA);
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mc = bmp085ReadInt(BAR_ADDR, 0xBC);
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md = bmp085ReadInt(BAR_ADDR, 0xBE);
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}
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// user function: get pressure and temperature from sensor with one command
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void bmp085::getBmpData(float bmp[])
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{
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bmp[0] = getTempFromBaro(baroReadUT());
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bmp[1] = getPressFromBaro(baroReadUP());
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}
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// calculate temperature given ut
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float bmp085::getTempFromBaro(unsigned int ut)
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{
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long x1, x2;
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x1 = (((long)ut - (long)ac6)*(long)ac5) >> 15;
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x2 = ((long)mc << 11)/(x1 + md);
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b5 = x1 + x2;
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return (float) ((b5 + 8)>>4)/10.;
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}
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// Calculate pressure given up
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// calibration values must be known
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// b5 is also required so bmp085GetTemperature(...) must be called first.
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// Value returned will be pressure in units of Pa.
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long bmp085::getPressFromBaro(unsigned long up)
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{
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long x1, x2, x3, b3, b6, p;
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unsigned long b4, b7;
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b6 = b5 - 4000;
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// Calculate B3
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x1 = (b2 * (b6 * b6)>>12)>>11;
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x2 = (ac2 * b6)>>11;
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x3 = x1 + x2;
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b3 = (((((long)ac1)*4 + x3)<<barOSS) + 2)>>2;
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// Calculate B4
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x1 = (ac3 * b6)>>13;
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x2 = (b1 * ((b6 * b6)>>12))>>16;
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x3 = ((x1 + x2) + 2)>>2;
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b4 = (ac4 * (unsigned long)(x3 + 32768))>>15;
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b7 = ((unsigned long)(up - b3) * (50000>>barOSS));
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if (b7 < 0x80000000)
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p = (b7<<1)/b4;
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else
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p = (b7/b4)<<1;
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x1 = (p>>8) * (p>>8);
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x1 = (x1 * 3038)>>16;
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x2 = (-7357 * p)>>16;
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p += (x1 + x2 + 3791)>>4;
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return p;
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}
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// read uncorrected temperature value from bmp085
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unsigned int bmp085::baroReadUT()
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{
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unsigned int ut;
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// Write 0x2E into Register 0xF4
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// This requests a temperature reading
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Wire.beginTransmission(BAR_ADDR);
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Wire.write(0xF4);
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Wire.write(0x2E);
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Wire.endTransmission();
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// Wait at least 4.5ms
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delay(5);
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// Read two bytes from registers 0xF6 and 0xF7
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ut = bmp085ReadInt(BAR_ADDR,0xF6);
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return ut;
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}
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// read uncorrected pressure value from bmp085
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unsigned long bmp085::baroReadUP()
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{
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unsigned char msb, lsb, xlsb;
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unsigned long up = 0;
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// Write 0x34+(OSS<<6) into register 0xF4
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// Request a pressure reading w/ oversampling setting
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Wire.beginTransmission(BAR_ADDR);
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Wire.write(0xF4);
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Wire.write(0x34 + (barOSS<<6));
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Wire.endTransmission();
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// Wait for conversion, delay time dependent on OSS
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delay(2 + (3<<barOSS));
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// Read register 0xF6 (MSB), 0xF7 (LSB), and 0xF8 (XLSB)
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Wire.beginTransmission(BAR_ADDR);
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Wire.write(0xF6);
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Wire.endTransmission();
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Wire.requestFrom(BAR_ADDR,3);
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// Wait for data to become available
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while(Wire.available() < 3)
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;
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msb = Wire.read();
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lsb = Wire.read();
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xlsb = Wire.read();
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up = (((unsigned long) msb << 16) | ((unsigned long) lsb << 8) | (unsigned long) xlsb) >> (8-barOSS);
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return up;
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}
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// read integer on bmp085
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int bmp085::bmp085ReadInt(int device, byte address)
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{
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unsigned char msb, lsb;
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Wire.beginTransmission(device);
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Wire.write(address);
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Wire.endTransmission();
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Wire.requestFrom(device, 2);
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while(Wire.available()<2)
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;
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msb = Wire.read();
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lsb = Wire.read();
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return (int) msb<<8 | lsb;
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}
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‎extra-libraries/ArduSat-I2Csensors/bmp085.h

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/*
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bmp085.h
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libary for using the I2C bmp085 pressure sensor
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(c) Written by Jeroen Cappaert for NanoSatisfi, August 2012
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*/
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#ifndef bmp085_h
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#define bmp085_h
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#include <Arduino.h>
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#define BAR_ADDR 0x77 // Barometric pressure sensor I2C address
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class bmp085
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{
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public:
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//constructor
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bmp085();
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//functions
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void configBaro();
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int bmp085ReadInt(int device, byte address);
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unsigned int baroReadUT();
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unsigned long baroReadUP();
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float getTempFromBaro(unsigned int ut);
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long getPressFromBaro(unsigned long up);
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void getBmpData(float bmp[]);
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//variables
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int ac1;
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int ac2;
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int ac3;
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unsigned int ac4;
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unsigned int ac5;
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unsigned int ac6;
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int b1;
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int b2;
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int mb;
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int mc;
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int md;
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int barOSS;
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long b5;
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private:
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};
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#endif

‎extra-libraries/ArduSat-I2Csensors/bmp085.o

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‎extra-libraries/ArduSat-I2Csensors/examples/I2CSensors/I2CSensors.ino

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///=========================================================
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// Many-Sensor-on I2C Test
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//---------------------------------------------------------
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//
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// Connect a number of I2C sensors to one Arduino and poll
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//
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// Author: pplatzer & jcappaert 2012
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// (c) nanosatisfi.com
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//=========================================================
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//Includes
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#include <Wire.h> //I2C communication
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#include <FreeSixIMU.h> //6DOF
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#include <FIMU_ADXL345.h> //Accelerometer
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#include <FIMU_ITG3200.h> //Gyro
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#include "mag3110.h"
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#include "vcnl4000.h"
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#include "tmp102.h"
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#include "bmp085.h"
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//Constants
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//General
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#define CycleTime 1000 //wait time for next measurements
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const int MyI2C = 11; //set own I2C address ID=11
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//create instances for sensors
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FreeSixIMU sixDOF = FreeSixIMU(); //FreeSixIMU object
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mag3110 mag;
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vcnl4000 light;
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tmp102 temp;
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bmp085 pres;
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//Define Variables
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float fltTemp; //temperature
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int intMag[3]; //Magnetic field - x-axis
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int intAmbLight; //Ambient Light value
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float fltAngles[3]; //Euler Angles
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float bmp[2];
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//--------------------------------------------------------
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// S E T U P
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//--------------------------------------------------------
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void setup() {
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//Serial
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Serial.begin(115200);
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Serial.println("Set up....");
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//I2C Protocoll
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Wire.begin(MyI2C); //Join I2C bus as slave # MyI2C
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Serial.println("Joining I2C...");
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//Configure Sensors
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mag.configMag();Serial.println("Magnetometer configured....");//configure Magnetometer
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light.configAmb(); Serial.println("Ambient Light configured...");//configure Ambient Light Sensor
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sixDOF.init(); Serial.println("Euler Angles configured...");//configure 6DOF Unit
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//configBaro();Serial.println("Barometer configured.......");//configure Barometric sensor
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pres.configBaro();
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//Done Setup
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Serial.println("...done setup");
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}
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//--------------------------------------------------------
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// M A I N L O O P
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//--------------------------------------------------------
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void loop(){
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//Measure Temperature
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Serial.print("requesting temperature....");
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fltTemp = temp.getTemperature();
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Serial.print(" Celsius: ");
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Serial.println(fltTemp);
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//Measure Magnetic Field
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Serial.print("requesting mag values.....");
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//intMagX = getMagX();
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intMag[0] = mag.readx();intMag[1] = mag.ready();intMag[2] = mag.readz();
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Serial.print(" myTsla: ");
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Serial.print(intMag[0]);Serial.print(" | ");
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Serial.print(intMag[1]);Serial.print(" | ");
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Serial.println(intMag[2]);
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//Measure Ambient Light
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Serial.print("requesting Ambient Light..");
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intAmbLight = light.readAmbient();
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Serial.print(" lux: ");
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Serial.println(intAmbLight, DEC);
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//Measure Euler Angles
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Serial.print("requesting Euler Angles...");
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sixDOF.getEuler(fltAngles);
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Serial.print(" Angles: ");
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Serial.print(fltAngles[0]); Serial.print(" | ");
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Serial.print(fltAngles[1]); Serial.print(" | ");
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Serial.println(fltAngles[2]);
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//Barometric Pressure
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Serial.print("requesting Pressure.......");
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pres.getBmpData(bmp);
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Serial.print(" Pressure: "); Serial.print(bmp[1]);
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Serial.print(" BaroTemp: "); Serial.println(bmp[0]);
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//Wait 1 second for next measurements
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Serial.println("---------------------------------------------------------");
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delay(CycleTime);
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}
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