sensoresp/include/sensor_multichannelgasgmxxx.cpp

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



Sensor_MULTICHANNELGASGMXXX::Sensor_MULTICHANNELGASGMXXX()
{
  gas = new GAS_GMXXX<TwoWire>();
}

void Sensor_MULTICHANNELGASGMXXX::init() //Things to be done during setup()
{    
  Serial.println("initializing MULTICHANNELGASGMXXX");
  //The default addrss is 0x08;
  //gas.begin(MyWire, 0x08); // use the software I2C
  //gas.setAddress(0x64); change thee I2C address
  gas->begin(Wire, 0x08);
  
  init_ok=true;
}



//Also called during setup()
void Sensor_MULTICHANNELGASGMXXX::setSettings_no2(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_no2.minchange=minchange;
    data_no2.senddelaymax=senddelaymax;
    data_no2.readdelay=readdelay;
}
void Sensor_MULTICHANNELGASGMXXX::setSettings_c2h5oh(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_c2h5oh.minchange=minchange;
    data_c2h5oh.senddelaymax=senddelaymax;
    data_c2h5oh.readdelay=readdelay;
}
void Sensor_MULTICHANNELGASGMXXX::setSettings_voc(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_voc.minchange=minchange;
    data_voc.senddelaymax=senddelaymax;
    data_voc.readdelay=readdelay;
}
void Sensor_MULTICHANNELGASGMXXX::setSettings_co(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_co.minchange=minchange;
    data_co.senddelaymax=senddelaymax;
    data_co.readdelay=readdelay;
}


//Called during setup
void Sensor_MULTICHANNELGASGMXXX::advertise(HomieNode& p_sensorNode)
{
    sensorNode = &p_sensorNode;
    sensorNode->advertise("no2");
    sensorNode->advertise("c2h5oh");
    sensorNode->advertise("voc");
    sensorNode->advertise("co");
}


void Sensor_MULTICHANNELGASGMXXX::sensorloop_no2()
{
  if (init_ok) {
    sensordata &d=data_no2;
    
    bool _changed=false;
    if (millis() >= (d.lastreadtime+d.readdelay)) {
      d.value = gas->calcVol(gas->measure_NO2()); // Volt
      if (fabs(d.lastsentvalue-d.value)>=d.minchange){
        _changed=true;
      }
      d.lastreadtime=millis();
    }

    if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
      Serial.print("Sending MULTICHANNELGASGMXXX no2. reason=");
      if (_changed) Serial.println("change"); else Serial.println("time");

      Homie.getLogger() << "no2 " << ": " << d.value << endl;
      sensorNode->setProperty("no2").send(String(d.value));
      d.lastsentvalue=d.value;
      
      d.lastsent=millis();
    }
  }
}

void Sensor_MULTICHANNELGASGMXXX::sensorloop_c2h5oh()
{
  if (init_ok) {
    sensordata &d=data_c2h5oh;
    
    bool _changed=false;
    if (millis() >= (d.lastreadtime+d.readdelay)) {
      d.value = gas->calcVol(gas->measure_C2H5OH()); // Volt
      if (fabs(d.lastsentvalue-d.value)>=d.minchange){
        _changed=true;
      }
      d.lastreadtime=millis();
    }

    if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
      Serial.print("Sending MULTICHANNELGASGMXXX c2h5oh. reason=");
      if (_changed) Serial.println("change"); else Serial.println("time");

      Homie.getLogger() << "c2h5oh " << ": " << d.value << endl;
      sensorNode->setProperty("c2h5oh").send(String(d.value));
      d.lastsentvalue=d.value;
      
      d.lastsent=millis();
    }
  }
}

void Sensor_MULTICHANNELGASGMXXX::sensorloop_voc()
{
  if (init_ok) {
    sensordata &d=data_voc;
    
    bool _changed=false;
    if (millis() >= (d.lastreadtime+d.readdelay)) {
      d.value = gas->calcVol(gas->measure_VOC()); // Volt
      if (fabs(d.lastsentvalue-d.value)>=d.minchange){
        _changed=true;
      }
      d.lastreadtime=millis();
    }

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

      Homie.getLogger() << "voc " << ": " << d.value << endl;
      sensorNode->setProperty("voc").send(String(d.value));
      d.lastsentvalue=d.value;
      
      d.lastsent=millis();
    }
  }
}

void Sensor_MULTICHANNELGASGMXXX::sensorloop_co()
{
  if (init_ok) {
    sensordata &d=data_co;
    
    bool _changed=false;
    if (millis() >= (d.lastreadtime+d.readdelay)) {
      d.value = gas->calcVol(gas->measure_CO()); // Volt
      if (fabs(d.lastsentvalue-d.value)>=d.minchange){
        _changed=true;
      }
      d.lastreadtime=millis();
    }

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

      Homie.getLogger() << "co " << ": " << d.value << endl;
      sensorNode->setProperty("co").send(String(d.value));
      d.lastsentvalue=d.value;
      
      d.lastsent=millis();
    }
  }
}


/*
val = gas.measure_NO2(); Serial.print("NO2: "); Serial.print(val); Serial.print("  eq  ");
Serial.print(gas.calcVol(val)); Serial.println("V");
val = gas.measure_C2H5OH(); Serial.print("C2H5OH: "); Serial.print(val); Serial.print("  eq  ");
Serial.print(gas.calcVol(val)); Serial.println("V");
val = gas.measure_VOC(); Serial.print("VOC: "); Serial.print(val); Serial.print("  eq  ");
Serial.print(gas.calcVol(val)); Serial.println("V");
val = gas.measure_CO(); Serial.print("CO: "); Serial.print(val); Serial.print("  eq  ");
Serial.print(gas.calcVol(val)); Serial.println("V");
*/