This is a Grove module for the Bosch BMP180 high-precision, low-power digital barometer. The BMP180 offers a pressure measuring range of 300 to 1100 hPa with an accuracy down to 0.02 hPa in advanced resolution mode. It’s based on piezo-resistive technology for high accuracy, ruggedness and long term stability. The chip only accepts 1.8V to 3.6V input voltage. However, with outer circuitry added, this module becomes compatible with 3.3V and 5V. Therefore, it can be used on Arduino/Seeeduino or Seeeduino Stalker without modification. It is designed to be connected directly to a micro-controller via the I2C bus.

Features

  • Digital two wire (I2C) interface
  • Wide barometric pressure range
  • Flexible supply voltage range
  • Ultra-low power consumption
  • Low noise measurement
  • Factory-calibrated
  • -40 to +85°C operational range, ±2°C temperature accuracy
  • I2C address: 0x77

Applications

  • Enhancement of GPS navigation
  • Indoor and outdoor navigation
  • Leisure and sports
  • Weather forecast
  • Vertical velocity indication (rise/sink speed)

 

 
/* Barometer demo V1.0
* Based largely on code by  Jim Lindblom
* Get pressure, altitude, and temperature from the BMP085.
* Serial.print it out at 9600 baud to serial monitor.
*
* By:http://www.seeedstudio.com
*/
#include "Barometer.h"
#include <Wire.h>
float temperature;
float pressure;
float atm;
float altitude;
Barometer myBarometer;
void setup(){
  Serial.begin(9600);
  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
   altitude = myBarometer.calcAltitude(pressure); //Uncompensated caculation - in Meters 
   atm = pressure / 101325; 
  
  Serial.print("Temperature: ");
  Serial.print(temperature, 2); //display 2 decimal places
  Serial.println("deg C");

  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.
}

Barometer Sensor - BMP180 (Grove)

  • Brand: Seeedstudio
  • Product Code: SEEED-101020072
  • Reward Points: 10
  • Availability: 6
  • £12.48

  • Ex Tax: £10.40
  • Price in reward points: 200

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