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