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


#define SEALEVELPRESSURE_HPA (1013.25)

Adafruit_BME280 bme; // I2C

struct {
  char temperature[15] = {0};
  char pressure[15] = {0};
  char approx_altitud[15] = {0};
  char humity[15] = {0};
} BME280Data;

  

void Init_BME280(){
    bool status = bme.begin();  
    if (!status) {
      Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }
}

void read_BME_280() {

  
    Serial.print("Temperature:\t\t");
    float t = bme.readTemperature();
    dtostrf(t,10,4,BME280Data.temperature);
    Serial.print(BME280Data.temperature);
    Serial.println(" °C");
    //Serial.print("Diff zu DS1820 \t\t");Serial.print(t-valTemp,4); Serial.println(" °C"); 

    Serial.print("Humidity:\t\t");
    float h = bme.readHumidity();
    dtostrf(h,8,2,BME280Data.humity);
    Serial.print(BME280Data.humity);
    Serial.println(" %");

    Serial.print("Pressure:\t\t");
    float p = bme.readPressure() / 100.0F;
    p = p + 22;
    dtostrf(p,5,0,BME280Data.pressure);
    Serial.print(BME280Data.pressure);
    Serial.println(" hPa");

    Serial.print("Approx. Altitude:\t");
    float a = bme.readAltitude(SEALEVELPRESSURE_HPA);
    dtostrf(a,5,0,BME280Data.approx_altitud);
    Serial.print(BME280Data.approx_altitud);
    Serial.println(" m über NN");

    Serial.println();
}
void M2M_BME280(long deviceId = 4711) {
    char topic[100];
    sprintf(topic, "%s%ld%s", "hjk/devices/", deviceId, "/telemetry/temperature_BME_280" );
    client.publish(topic, BME280Data.temperature, true);
    sprintf(topic, "%s%ld%s", "hjk/devices/", deviceId, "/telemetry/pressure" );
    client.publish(topic, BME280Data.pressure, true);
    sprintf(topic, "%s%ld%s", "hjk/devices/", deviceId, "/telemetry/humity" );
    client.publish(topic, BME280Data.humity, true);
    sprintf(topic, "%s%ld%s", "hjk/devices/", deviceId, "/telemetry/approx_altitude" );
    client.publish(topic, BME280Data.approx_altitud);
    //
    //delay(500);
}