111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
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#include <Arduino.h>
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// put function declarations here:
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int myFunction(int, int);
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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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#define Korrektur_Luftdruck KorrekturLuftdruck // Korrekturwert um Abweichungen zu offiziellen Wetterstationen auszugleichen
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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 printValues();
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void setup() {
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Serial.begin(115200);
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Serial.println(F("BME280 test"));
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unsigned status;
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// default settings
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status = bme.begin();
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// You can also pass in a Wire library object like &Wire2
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// status = bme.begin(0x76, &Wire2)
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if (!status) {
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Serial.println("Could not find a valid BME280 sensor, check wiring, address, sensor ID!");
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Serial.print("SensorID was: 0x"); Serial.println(bme.sensorID(),16);
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Serial.print(" ID of 0xFF probably means a bad address, a BMP 180 or BMP 085\n");
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Serial.print(" ID of 0x56-0x58 represents a BMP 280,\n");
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Serial.print(" ID of 0x60 represents a BME 280.\n");
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Serial.print(" ID of 0x61 represents a BME 680.\n");
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while (1) delay(10);
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}
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delayTime = 10000;
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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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float t = 0.0;
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float p = 0.0;
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float a = 0.0;
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float h = 0.0;
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char ct[15];
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char cp[15];
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char ca[15];
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char ch[15];
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Serial.print("Temperature:\t\t");
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t = bme.readTemperature();
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dtostrf(t,11,3,ct);
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Serial.print(ct);
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Serial.println(" °C");
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Serial.print("Humidity:\t\t");
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h = bme.readHumidity();
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dtostrf(h,11,3,ch);
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Serial.print(ch);
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Serial.println(" %");
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Serial.print("Pressure:\t\t");
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p = bme.readPressure() / 100.0F;
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p = p + Korrektur_Luftdruck;
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dtostrf(p,9,1,cp);
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Serial.print(cp);
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Serial.println(" hPa");
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Serial.print("Approx. Altitude:\t");
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a = bme.readAltitude(SEALEVELPRESSURE_HPA);
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dtostrf(a,11,3,ca);
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Serial.print(ca);
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Serial.println(" m über NN");
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Serial.println();
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}
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