Arduino 與科學資料

/*  Lab14 Barometer BMP280 程式碼*/

/* BMP280 接線方式

VIN --> 3V3 (請注意，電源要接到3V3，以免燒壞)

GND --> GND

SCL --> A5

SDA --> A4

*/

#include <Wire.h>

#include "i2c.h"

#include "i2c_BMP280.h"

BMP280 bmp280;

void setup()

{

    Serial.begin(9600);

    bmp280.initialize();

    bmp280.setEnabled(0);

    bmp280.triggerMeasurement();

}

void loop()

{

    bmp280.awaitMeasurement();

    float temperature;             //氣溫，單位：攝氏溫度

    bmp280.getTemperature(temperature);

    float pascal;                  //氣壓，單位：pa帕

    bmp280.getPressure(pascal);

    float meters;                  //海拔高度，單位：m公尺

    bmp280.getAltitude(meters);    //假設海平面大氣壓為101325Pa，所計算的海拔高度;

    bmp280.triggerMeasurement();

    Serial.print("Height: ");

    Serial.print(meters);

    Serial.print(" Pressure: ");

    Serial.print(pascal/100);      //換算成常用的單位"百帕"

    Serial.print(" hPa; T: ");

    Serial.print(temperature);

    Serial.println(" C");

}