82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/***************************************************************************
|
|
This is a library for the BME280 humidity, temperature & pressure sensor
|
|
|
|
Designed specifically to work with the Adafruit BME280 Breakout
|
|
----> http://www.adafruit.com/products/2650
|
|
|
|
These sensors use I2C or SPI to communicate, 2 or 4 pins are required
|
|
to interface. The device's I2C address is either 0x76 or 0x77.
|
|
|
|
Adafruit invests time and resources providing this open source code,
|
|
please support Adafruit andopen-source hardware by purchasing products
|
|
from Adafruit!
|
|
|
|
Written by Limor Fried & Kevin Townsend for Adafruit Industries.
|
|
BSD license, all text above must be included in any redistribution
|
|
***************************************************************************/
|
|
|
|
#include <Wire.h>
|
|
#include <SPI.h>
|
|
#include <Adafruit_Sensor.h>
|
|
#include <Adafruit_BME280.h>
|
|
|
|
#define BME_SCK 13
|
|
#define BME_MISO 12
|
|
#define BME_MOSI 11
|
|
#define BME_CS 10
|
|
|
|
#define SEALEVELPRESSURE_HPA (1013.25)
|
|
|
|
Adafruit_BME280 bme; // I2C
|
|
//Adafruit_BME280 bme(BME_CS); // hardware SPI
|
|
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
|
|
|
|
unsigned long delayTime;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
Serial.println(F("BME280 test"));
|
|
|
|
bool status;
|
|
|
|
// default settings
|
|
// (you can also pass in a Wire library object like &Wire2)
|
|
status = bme.begin();
|
|
if (!status) {
|
|
Serial.println("Could not find a valid BME280 sensor, check wiring!");
|
|
while (1);
|
|
}
|
|
|
|
Serial.println("-- Default Test --");
|
|
delayTime = 1000;
|
|
|
|
Serial.println();
|
|
}
|
|
|
|
|
|
void loop() {
|
|
printValues();
|
|
delay(delayTime);
|
|
}
|
|
|
|
|
|
void printValues() {
|
|
Serial.print("Temperature = ");
|
|
Serial.print(bme.readTemperature());
|
|
Serial.println(" *C");
|
|
|
|
Serial.print("Pressure = ");
|
|
|
|
Serial.print(bme.readPressure() / 100.0F);
|
|
Serial.println(" hPa");
|
|
|
|
Serial.print("Approx. Altitude = ");
|
|
Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
|
|
Serial.println(" m");
|
|
|
|
Serial.print("Humidity = ");
|
|
Serial.print(bme.readHumidity());
|
|
Serial.println(" %");
|
|
|
|
Serial.println();
|
|
} |