Crowtail- BMP280 Barometer Sensor

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Contents

Introduction

The Crowtail-BMP280 Barometer Sensor is a breakout board for Bosch BMP280 high-precision and low-power digital barometer.It can be used to measure temperature and atmospheric pressure accurately. It can be connected to a microcontroller with I2C. As the atmospheric pressure changes with altitude, it can also measure approximate altitude of a place. We have also provided highly abstracted library to make this product easier to use.


Mode: CRT00289B

Crowtail- BMP280 Barometer Sensor.jpg

Featrue

  • Smaller footprint, lower power consumption, lower noise measurements, lower RMS noise
  • Higher resolutions for pressure and temperature, higher measuring rate
  • Easy-to-use Crowtail Compatible Interface
  • Can be used as an altimeter with accuracy of ±1 meter

Specification

  • Supply Voltage: 5V or 3.3V
  • Current Consumption: 0.6 mA
  • Barometric Pressure Measure

Range: 300 – 1100 hPa Accuracy: ±1.0 hPa

  • Temperature Measurement

Range: -40 to 85 Accuracy: ±1

  • Interface: I2C
  • Crowtail Port: I2C
  • Dimensions: 20mm x 20mm

Usage

1. Plug it onto the IIC port of Crowtail - Base Shield using a Crowtail cable.

2.Plug the Crowtail - Base Shield onto Arduino.

3. Connect Arduino to PC by using a USB cable.

Exampleddddd.png

4.You can find development library here

5. Copy and paste code below to a new Arduino sketch, and upload it to your Arduino


#include "BMP280.h"
#include <Wire.h>

BMP280 bmp280;

void setup()
{
  Serial.begin(9600);
  if(!bmp280.init()){
    Serial.println("Device error!");
  }
}

void loop()
{
  float pressure;
  
  //get and print temperatures
  Serial.print("Temp: ");
  Serial.print(bmp280.getTemperature());
  Serial.println("C"); // The unit for  Celsius because original arduino don't support speical symbols
  
  //get and print atmospheric pressure data
  Serial.print("Pressure: ");
  Serial.print(pressure = bmp280.getPressure());
  Serial.println("Pa");
  
  //get and print altitude data
  Serial.print("Altitude: ");
  Serial.print(bmp280.calcAltitude(pressure));
  Serial.println("m");
  
  Serial.println("\n");//add a line between output of different times.

  delay(1000);
}

5.When you upload the code complete,you can see the result via the serial port debug window

Edsge.png

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