Name: Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口 取代舊款 BMP180 BMP280
SKU: IMU-004652
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Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口取代舊款 BMP180 BMP280

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描述

Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口取代舊款 BMP180 BMP280

這款由 DFRobot 發表的新型 Gravity BMP388 氣壓感測器模組具有溫度和壓力測量功能。它支持Arduino代碼控制。與早期版本的BMP180，BMP280和BMP388相比，該傳感器具有更低的功耗，更高的分辨率和更高的採樣率。

氣壓通常用於測量氣壓和溫度。但除此之外，我們還可以使用傳感器測量高度和相對樓層高度，因為高度和氣壓之間存在一定的關係。更重要的是，BMP388可實現精確的GPS跟踪。所以使用IMU傳感器和BMP388，我們可以體驗3D室內定位和導航。

BMP388 氣壓感測器模組基於博世成熟的壓電電阻式壓力傳感器技術，具有高精度，低功耗和高EMC穩健性。該傳感器的精度約為±8Pa，相當於高度差±0.5m，絕對精度溫度為±0.5℃，溫度範圍為0℃至65℃。

注意：請勿用手指觸摸傳感器，因為它對外部環境非常敏感。

應用

溫度測量
壓力測量
海拔高度測量
室內導航（樓層檢測，電梯檢測）
戶外導航，休閒和運動應用
垂直速度指示（例如上升/下降速度）

規格

工作電壓：3.3V-5.5V
工作電流：0.5mA
工作範圍：300-1250 hPa
相對精度：±8 Pa（相當於±0.50m @ 700-900hPa，25℃-40℃）
絕對精度：±50 Pa（0℃-65℃@ 300-1100hPa）
溫度係數偏移：±0.75 Pa / K（-20℃-65℃@ 700-1100hPa）
絕對精度溫度：±0.5℃（@ 0℃-65℃）
工作溫度：-40℃~80℃（0℃-65℃更準確）
外形尺寸：22mm x 30mm
安裝孔位置：15mm
安裝孔尺寸：內徑3mm /外徑6mm
接口：重力-IIC 4Pin或SPI（SPI僅用於3.3V）

Gravity BMP388 氣壓感測器模組

引腳

絲印	描述
SDA	IIC數據
SCL	IIC時鐘
INT	中斷輸出引腳
SCK	SPI-CLK
SDI	SPI-MOSI
CSB	SPI-CS
SDO	SPI-MISO / IIC地址選擇
GND	負極
VCC	陽極

教程

檢測當前環境的氣壓和溫度，併計算模塊所處環境的高度。

製備

硬件

1個Arduino UNO微控制器板
1 x Gravity I2C BMP388溫度和氣壓計
杜邦線

軟件

Arduino IDE

連接圖

通過I2C接口將模塊與UNO主板連接，如下所示。

連接圖

Arduino 範例代碼

下載BMP388庫文件。如何安裝庫？複製以下代碼並將其刻錄到單晶片中。

/*!
  * file bmp388test.ino
  * 
  * Connect BMP388 to IIC interface of Arduino, download the program.
  * Altitude is calculated based on temperature and sea level pressure.
  * The example can count an approximate altitude.
  *
  * @n Open the serial monitor, check the altitude.
  * @n Open serial monitor, the temperature could be checked. 
  * @n Open serial monitor, the atmospheric pressure could be checked.
  * 
  * Copyright   [DFRobot](http://www.dfrobot.com), 2016
  * Copyright   GNU Lesser General Public License
  *
  * version  V0.1
  * date  2018-5-29
  */
#include "DFRobot_BMP388.h"
#include "DFRobot_BMP388_I2C.h"
#include "Wire.h"
#include "SPI.h"
#include "math.h"
#include "bmp3_defs.h"

/*If there is no need to calibrate altitude, comment this line*/
#define CALIBRATE_Altitude

/*Create a bmp388 object to communicate with IIC.*/
DFRobot_BMP388_I2C bmp388;

float seaLevel;

void setup(){
  /* Initialize the serial port*/
  Serial.begin(9600);
  /* Initialize bmp388*/
  while(bmp388.begin()){
    Serial.println("Initialize error!");
    delay(1000);
  }
  /*You can use an accurate altitude to calibrate sea level air pressure. 
   *And then use this calibrated sea level pressure as a reference to obtain the calibrated altitude.
   *In this case,525.0m is chendu accurate altitude.
   */
  delay(100);
  seaLevel = bmp388.readSeaLevel(525.0);
  Serial.print("seaLevel : ");
  Serial.print(seaLevel);
  Serial.println(" Pa");
}

void loop(){
  #ifdef CALIBRATE_Altitude
  /* Read the calibrated altitude */
  float altitude = bmp388.readCalibratedAltitude(seaLevel);
  Serial.print("calibrate Altitude : ");
  Serial.print(altitude);
  Serial.println(" m");
  #else
  /* Read the altitude */
  float altitude = bmp388.readAltitude();
  Serial.print("Altitude : ");
  Serial.print(altitude);
  Serial.println(" m");
  #endif
  delay(100);
   /* Read the atmospheric pressure, print data via serial port.*/
  float Pressure = bmp388.readPressure();
  Serial.print("Pressure : ");
  Serial.print(Pressure);
  Serial.println(" Pa");
  delay(100);
  /* Read the temperature, print data via serial port.*/
  float Temperature = bmp388.readTemperature();
  Serial.print("Temperature : ");
  Serial.print(Temperature);
  Serial.println(" C");
  Serial.println();
  delay(1000);
}

/*!

* file bmp388test.ino

* Connect BMP388 to IIC interface of Arduino, download the program.

* Altitude is calculated based on temperature and sea level pressure.

* The example can count an approximate altitude.

* @n Open the serial monitor, check the altitude.

* @n Open serial monitor, the temperature could be checked.

* @n Open serial monitor, the atmospheric pressure could be checked.

* Copyright [DFRobot](http://www.dfrobot.com), 2016

* Copyright GNU Lesser General Public License

* version V0.1

* date 2018-5-29

#include "DFRobot_BMP388.h"

#include "DFRobot_BMP388_I2C.h"

#include "Wire.h"

#include "SPI.h"

#include "math.h"

#include "bmp3_defs.h"

/*If there is no need to calibrate altitude, comment this line*/

#define CALIBRATE_Altitude

/*Create a bmp388 object to communicate with IIC.*/

DFRobot_BMP388_I2C bmp388;

float seaLevel;

void setup(){

/* Initialize the serial port*/

Serial.begin(9600);

/* Initialize bmp388*/

while(bmp388.begin()){

Serial.println("Initialize error!");

delay(1000);

}

/*You can use an accurate altitude to calibrate sea level air pressure.

*And then use this calibrated sea level pressure as a reference to obtain the calibrated altitude.

*In this case,525.0m is chendu accurate altitude.

delay(100);

seaLevel = bmp388.readSeaLevel(525.0);

Serial.print("seaLevel : ");

Serial.print(seaLevel);

Serial.println(" Pa");

}

void loop(){

#ifdef CALIBRATE_Altitude

/* Read the calibrated altitude */

float altitude = bmp388.readCalibratedAltitude(seaLevel);

Serial.print("calibrate Altitude : ");

Serial.print(altitude);

Serial.println(" m");

#else

/* Read the altitude */

float altitude = bmp388.readAltitude();

Serial.print("Altitude : ");

Serial.print(altitude);

Serial.println(" m");

#endif

delay(100);

/* Read the atmospheric pressure, print data via serial port.*/

float Pressure = bmp388.readPressure();

Serial.print("Pressure : ");

Serial.print(Pressure);

Serial.println(" Pa");

delay(100);

/* Read the temperature, print data via serial port.*/

float Temperature = bmp388.readTemperature();

Serial.print("Temperature : ");

Serial.print(Temperature);

Serial.println(" C");

Serial.println();

delay(1000);

}

結果

檢查程序通過串口讀取的值。

COM15

Gravity BMP388 Barometric Pressure Sensors

This new released BMP388 barometric pressure sensor by DFRobot is equipped with the functionality of temperature and pressure measurement. It supports Arduino code control. Compared with the earlier version of BMP180, BMP280 and BMP388, this sensor exhibits lower power consumption, higher resolution and higher sampling rate.

The barometric pressure is usually used to measure barometric pressure and temperature. But besides that, we can also use the sensor to measure the altitude and the relative floor height due to the fact that there is a certain relationship between altitude and barometric pressure. What’s more, BMP388 enables accurate GPS tracking. So with an IMU sensor and BMP388, we can experience 3D indoor positioning and navigation.

BMP388 is based on Bosch’s mature Piezo resistive pressure sensor technology featuring high accuracy as well low power consumption and high EMC robustness.

The sensor features an accuracy of about ±8Pa, which is equivalent to about ±0.5m difference in altitude, and an absolute accuracy temperature of ±0.5℃ for a temperature range between 0℃ and 65℃.

FEATURES

Low power consumption
Low noise
High resolution
Small dimensions
Best-in-class offset temperature coefficient（-20℃-65℃@700-1100hPa）

SPECIFICATION

Operating Voltage: 3.3V-5.5V
Operating Current: 0.5mA
Operating Range: 300-1250 hPa
Relative Accuracy: ±8 Pa (equivalent to ±0.50m @700-900hPa, 25℃-40℃)
Absolute Accuracy: ±50 Pa（0℃-65℃@300-1100hPa）
Temperature Coefficient Offset: ±0.75 Pa/K（-20℃-65℃@700-1100hPa）
Absolute Accuracy Temperature: ±0.5℃（@0℃-65℃）
Operating Temperature: -40℃~80℃ (more accurate in 0℃-65℃)
External Dimension: 22mm x 30mm
Mounting Hole Position: 15mm
Mounting Hole Dimension: inside diameter 3mm/ outside diameter 6mm
Interface: Gravity-IIC 4Pin or SPI (SPI is only used at 3.3V)

DOCUMENTS

Product wiki

Size Guide

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Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口取代舊款 BMP180 BMP280

Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口取代舊款 BMP180 BMP280

描述

描述

Gravity BMP388 氣壓感測器模組 DFRobot 原裝進口取代舊款 BMP180 BMP280

應用

規格

引腳

教程

製備

硬件

軟件

連接圖

Arduino 範例代碼

結果