Grove_Barometer_Sensor/examples/Barometer_Sensor/Barometer_Sensor.ino

/*
 * Barometer_Sensor.ino
 * Example sketch for barometer
 *
 * Copyright (c) 2012 seeed technology inc.
 * Website    : www.seeed.cc
 * Author     : Jim Lindblom, LG
 * Create Time:
 * Change Log :
 *
 * The MIT License (MIT)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "BMP085.h"
#include <Wire.h>
float temperature;
float pressure;
float atm;
float altitude;
BMP085 myBarometer;
void setup(){
  Serial.begin(9600);
  while(!Serial);
  myBarometer.init();

}

void loop()
{
   temperature = myBarometer.bmp085GetTemperature(myBarometer.bmp085ReadUT()); //Get the temperature, bmp085ReadUT MUST be called first
   pressure = myBarometer.bmp085GetPressure(myBarometer.bmp085ReadUP());//Get the temperature
   
   /*
    To specify a more accurate altitude, enter the correct mean sea level
    pressure level.  For example, if the current pressure level is 1019.00 hPa
    enter 101900 since we include two decimal places in the integer value。
   */
   altitude = myBarometer.calcAltitude(101900); 
   
   atm = pressure / 101325;

  Serial.print("Temperature: ");
  Serial.print(temperature, 2); //display 2 decimal places
  Serial.println(" Celsius");

  Serial.print("Pressure: ");
  Serial.print(pressure, 0); //whole number only.
  Serial.println(" Pa");

  Serial.print("Ralated Atmosphere: ");
  Serial.println(atm, 4); //display 4 decimal places

  Serial.print("Altitude: ");
  Serial.print(altitude, 2); //display 2 decimal places
  Serial.println(" m");

  Serial.println();

  delay(1000); //wait a second and get values again.
}