59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
#pragma once
|
|
|
|
#include <Adafruit_BMP280.h>
|
|
|
|
namespace Bmp {
|
|
|
|
Adafruit_BMP280 bmp; // I2C Interface
|
|
|
|
struct {
|
|
float temp;
|
|
float pressure;
|
|
float altitude;
|
|
float readTemp() {
|
|
char buf[10];
|
|
sprintf(buf, "%.1f", bmp.readTemperature() - 2);
|
|
temp = atof(buf);
|
|
return temp;
|
|
}
|
|
void readAll() {
|
|
readTemp();
|
|
pressure = bmp.readPressure() / 100;
|
|
altitude = bmp.readAltitude(1006);
|
|
}
|
|
} data;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
Serial.println(F("BMP280 setup"));
|
|
|
|
if (!bmp.begin(0x76)) {
|
|
Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
|
|
while (1);
|
|
}
|
|
|
|
/* Default settings from datasheet. */
|
|
bmp.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */
|
|
Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */
|
|
Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */
|
|
Adafruit_BMP280::FILTER_X16, /* Filtering. */
|
|
Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */
|
|
}
|
|
|
|
void loop() {
|
|
Serial.print(F("Temperature = "));
|
|
Serial.print(bmp.readTemperature());
|
|
Serial.println(" *C");
|
|
|
|
Serial.print(F("Pressure = "));
|
|
Serial.print(bmp.readPressure() / 100); //displaying the Pressure in hPa, you can change the unit
|
|
Serial.println(" hPa");
|
|
|
|
Serial.print(F("Approx altitude = "));
|
|
Serial.print(bmp.readAltitude(1019.66)); //The "1019.66" is the pressure(hPa) at sea level in day in your region
|
|
Serial.println(" m"); //If you don't know it, modify it until you get your current altitude
|
|
|
|
Serial.println();
|
|
delay(2000);
|
|
}
|
|
} |