sensoresp/include/sensor_bmp180.cpp

//Connect SCL to D1, SDA to D2, GND and 3v3
#include "sensor_bmp180.h"



Sensor_BMP180::Sensor_BMP180()
{
    bmp180 = new Adafruit_BMP085();
}

void Sensor_BMP180::init() //Things to be done during setup()
{    
    Serial.println("initializing bmp180");
    if (!bmp180->begin()){
      Serial.println("#ERROR: BMP180 init fail\n");
    }else{
      init_ok=true; //stays false if init failed, sensor will not be read in loop
    }
}

//Also called during setup()
void Sensor_BMP180::setSettings_Temperature(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_temperature.minchange=minchange;
    data_temperature.senddelaymax=senddelaymax;
    data_temperature.readdelay=readdelay;
}

//Also called during setup()
void Sensor_BMP180::setSettings_Pressure(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_pressure.minchange=minchange;
    data_pressure.senddelaymax=senddelaymax;
    data_pressure.readdelay=readdelay;
}

//Called during setup
void Sensor_BMP180::advertise(HomieNode& p_sensorNode)
{
    sensorNode = &p_sensorNode;
    sensorNode->advertise("temperature");
    sensorNode->advertise("pressure");
}

void Sensor_BMP180::sensorloop()
{
  if (init_ok) {
    loop_BMP180_temperature();
    loop_BMP180_pressure();
  }
}

void Sensor_BMP180::loop_BMP180_temperature()
{
  sensordata &d=data_temperature;
  bool _changed=false;  

  if (millis() >= (d.lastreadtime+d.readdelay)) {
    d.value = bmp180->readTemperature();
    if (fabs(d.lastsentvalue-d.value)>=d.minchange){
      _changed=true;
    }
    d.lastreadtime=millis();
  }

  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
    Serial.print("Sending BMP180_temperature. reason=");
    if (_changed) Serial.println("change"); else Serial.println("time");
    

    if (!(isnan(d.value) == 1)){ //success
      sensorNode->setProperty("temperature").send(String(d.value));
      Homie.getLogger() << "temperature " << ": " << d.value << endl;    
      d.lastsentvalue=d.value;
    }

    d.lastsent=millis();
  }
}

void Sensor_BMP180::loop_BMP180_pressure()
{
  sensordata &d=data_pressure;
  bool _changed=false;
  
  if (millis() >= (d.lastreadtime+d.readdelay)) {
    d.value = bmp180->readPressure()/100.0;
    if (fabs(d.lastsentvalue-d.value)>=d.minchange){
      _changed=true;
    }
    d.lastreadtime=millis();
  }

  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
    Serial.print("Sending BMP180_pressure. reason=");
    if (_changed) Serial.println("change"); else Serial.println("time");

    if (!(isnan(d.value) == 1)){ //success
      Homie.getLogger() << "pressure " << ": " << d.value << endl;
      sensorNode->setProperty("pressure").send(String(d.value));
      d.lastsentvalue=d.value;
    }
    d.lastsent=millis();
  }
}