藍芽連接

#include  <SoftwareSerial.h>

SoftwareSerial BTSerial(10, 11);

#include <Wire.h>

#include "i2c.h"

#include "i2c_BMP280.h"

BMP280 bmp280;

void setup()

{

    Serial.begin(9600);

    bmp280.initialize();

    bmp280.setEnabled(0);

    bmp280.triggerMeasurement();

    BTSerial.begin(9600);

}

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);

    bmp280.triggerMeasurement();

    String text = String(pascal/100) + String(",") + String(temperature);

    Serial.println(text);

    //透過藍牙傳送到數據資料。每個數據之間要有逗號,  最後要有分號;

    BTSerial.print(pascal/100);

    BTSerial.print(",");

    BTSerial.print(temperature);

    BTSerial.print(";");

}