Temperatur- und Feuchtigkeitssensor Tutorial für den BME280 Sensor

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define SEALEVELPRESSURE_HPA (1013.25)

Adafruit_BME280 bme; // Default I2C

void setup() {
  Serial.begin(9600);

  bool status = bme.begin(0x76);  
  if (!status) {
    Serial.println("Could not find BME280 sensor!");
    while (1);
  } 
}
 

void loop() { 
  Serial.print("Temperature = ");
  Serial.print(bme.readTemperature());
  Serial.println(" *C");
  
  // Convert temperature to Fahrenheit
  /*Serial.print("Temperature = ");
  Serial.print(1.8 * bme.readTemperature() + 32);
  Serial.println(" *F");*/
  
  Serial.print("Pressure = ");
  Serial.print(bme.readPressure() / 100.0F);
  Serial.println(" hPa");

  Serial.print("Altitude (Approx) = ");
  Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
  Serial.println(" m");

  Serial.print("Humidity = ");
  Serial.print(bme.readHumidity());
  Serial.println(" %");

  Serial.println();
  delay(1000);
}

// Ref: https://github.com/adafruit/Adafruit_BME280_Library/blob/master/examples/bme280test/bme280test.ino

#ifdef ENABLE_DEBUG
  #define DEBUG_ESP_PORT Serial
  #define NODEBUG_WEBSOCKETS
  #define NDEBUG
#endif 

#include <Arduino.h>
#if defined(ESP8266)
  #include <ESP8266WiFi.h>
#elif defined(ESP32)
  #include <WiFi.h>
#endif

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#include "SinricPro.h"
#include "SinricProTemperaturesensor.h"

#define WIFI_SSID         ""   // Your WiFI SSID name 
#define WIFI_PASS         ""   // Your WiFi Password.
#define APP_KEY           ""   // Should look like "de0bxxxx-1x3x-4x3x-ax2x-5dabxxxxxxxx" (Get it from Portal -> Secrets)
#define APP_SECRET        ""   // Should look like "5f36xxxx-x3x7-4x3x-xexe-e86724a9xxxx-4c4axxxx-3x3x-x5xe-x9x3-333d65xxxxxx" (Get it from Portal -> Secrets)
#define TEMP_SENSOR_ID    ""   // Should look like "5dc1564130xxxxxxxxxxxxxx" (Get it from Portal -> Devices)
#define BAUD_RATE         115200              // Change baudrate to your need (used for serial monitor)
#define EVENT_WAIT_TIME   60000               // send event every 60 seconds

float temperature;                            // actual temperature
float humidity;                               // actual humidity
float lastTemperature;                        // last known temperature (for compare)
float lastHumidity;                           // last known humidity (for compare)

#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme; // Default I2C
 
void handleTemperaturesensor() {
  if (SinricPro.isConnected() == false) {
    Serial.printf("Not connected to Sinric Pro...!\r\n");
    return; 
  }

  static unsigned long last_millis;
  unsigned long        current_millis = millis();
  if (last_millis && current_millis - last_millis < EVENT_WAIT_TIME) return;
  last_millis = current_millis;
  
  float temperature = bme.readTemperature();
  float humidity = bme.readHumidity();

  Serial.printf("Temperature: %2.1f Celsius\tHumidity: %2.1f%%\r\n", temperature, humidity);

  if (isnan(temperature) || isnan(humidity)) { // reading failed... 
    Serial.printf("BME280 reading failed!\r\n");  // print error message
    return;                                    // try again next time
  }

  if (temperature == lastTemperature && humidity == lastHumidity) {
    Serial.printf("Temperature/Humidity did not changed. do nothing...!\r\n");
    return; 
  }

  SinricProTemperaturesensor &mySensor = SinricPro[TEMP_SENSOR_ID];  // get temperaturesensor device
  bool success = mySensor.sendTemperatureEvent(temperature, humidity); // send event
  if (success) {  
    Serial.printf("Sent!\r\n");
  } else {
    Serial.printf("Something went wrong...could not send Event to server!\r\n"); // Enable ENABLE_DEBUG to see why
  }

  lastTemperature = temperature;  // save actual temperature for next compare  
  lastHumidity = humidity;        // save actual humidity for next compare
}


// setup function for WiFi connection
void setupWiFi() {
  Serial.printf("\r\n[Wifi]: Connecting");

  #if defined(ESP8266)
    WiFi.setSleepMode(WIFI_NONE_SLEEP); 
    WiFi.setAutoReconnect(true);
  #elif defined(ESP32)
    WiFi.setSleep(false); 
    WiFi.setAutoReconnect(true);
  #endif

  WiFi.begin(WIFI_SSID, WIFI_PASS); 

  while (WiFi.status() != WL_CONNECTED) {
    Serial.printf(".");
    delay(250);
  }
  IPAddress localIP = WiFi.localIP();
  Serial.printf("connected!\r\n[WiFi]: IP-Address is %d.%d.%d.%d\r\n", localIP[0], localIP[1], localIP[2], localIP[3]);
}

bool onPowerState(const String &deviceId, bool &state) {
  return true; // request handled properly
}

// setup function for SinricPro
void setupSinricPro() {
  // add device to SinricPro
  SinricProTemperaturesensor &mySensor = SinricPro[TEMP_SENSOR_ID];
  mySensor.onPowerState(onPowerState);
  
  // setup SinricPro
  SinricPro.onConnected([](){ Serial.printf("Connected to SinricPro\r\n"); }); 
  SinricPro.onDisconnected([](){ Serial.printf("Disconnected from SinricPro\r\n"); });
  //SinricPro.restoreDeviceStates(true); // Uncomment to restore the last known state from the server.
  SinricPro.begin(APP_KEY, APP_SECRET);  
}

void setupBME280() { 
  bool status = bme.begin(0x76);  
  if (!status) {
    Serial.println("Could not find BME280 sensor!");
    while (1);
  } 
}

// main setup function
void setup() {
  Serial.begin(BAUD_RATE); Serial.printf("\r\n\r\n");

  setupBME280();
  setupWiFi();
  setupSinricPro();
}

void loop() {
  SinricPro.handle();
  handleTemperaturesensor();
}