sensoresp/src/sensor_tcs34725.cpp

#ifdef SENSOR_TCS34725
#include "sensor_tcs34725.h"
//#include "Adafruit_TCS34725.h"
//Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);  //initializer from standart class

//Connect SCL to D1, SDA to D2, GND and 3v3
//Maximum measurable light is around 20k Lux. (direct sunlight is easily above 20k Lux)

Sensor_TCS34725::Sensor_TCS34725()
{  
  tcs = new tcs34725();
  #ifndef TCS34725_MINLUXFORCT
    #define TCS34725_MINLUXFORCT 30 //send only colortemperature values if lux is at least this high
  #endif
  #ifndef TCS34725_LUXFACTOR
    #define TCS34725_LUXFACTOR 1
  #endif
}

void Sensor_TCS34725::init() //Things to be done during setup()
{
  Serial.println("initializing tcs34725");
  if (!tcs->begin()) {
    Serial.println("No TCS34725 found!");
  }else{
    init_ok=true;
  }
}

//Also called during setup()
void Sensor_TCS34725::setSettings_Lux(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_lux.minchange=minchange;
    data_lux.senddelaymax=senddelaymax;
    data_lux.readdelay=readdelay;
}

//Also called during setup()
void Sensor_TCS34725::setSettings_Colortemp(float minchange, unsigned long senddelaymax, unsigned long readdelay)
{
    data_colortemp.minchange=minchange;
    data_colortemp.senddelaymax=senddelaymax;
    data_colortemp.readdelay=readdelay;
}

//Called during setup
void Sensor_TCS34725::advertise(HomieNode& p_sensorNode)
{
    sensorNode = &p_sensorNode;
    #if defined(SENSOR_LDR) || defined(SENSOR_BH1750)
      sensorNode->advertise("light_tcs");
    #else
      sensorNode->advertise("light");
    #endif
    sensorNode->advertise("colortemp");
}

void Sensor_TCS34725::sensorloop()
{
  loop_lux();
  loop_colortemp();
}


void Sensor_TCS34725::loop_lux()
{
  sensordata &d=data_lux;
  
  bool _changed=false;
  if (millis() >= (d.lastreadtime+d.readdelay)) {
    if (millis() >= (lastread_tcs34725+d.readdelay)) { //avoid reading sensor twice in a short time
      //tcs.getRawData(&value_tcs_r, &value_tcs_g, &value_tcs_b, &value_tcs_c);
      tcs->getData();
      lastread_tcs34725=millis();
      if (tcs->isSaturated){
        Serial.println("Warning: tcs34725 is saturated");
        #ifdef STATUSNODE
        sensorNode->setProperty("status").send("TCS34725 is saturated");
        #endif
      }
    }
    //value_tcs_lux = tcs.calculateLux(value_tcs_r, value_tcs_g, value_tcs_b);
    uint16_t _value_tcs_lux = tcs->lux*TCS34725_LUXFACTOR;
    if (!tcs->isSaturated && _value_tcs_lux<65535){ //sometimes false high reading accur around 65535 sometimes less. with isSaturated check only 65535 values appeared.
      d.value = _value_tcs_lux;
    }

    if (abs((int)d.lastsentvalue-d.value)>=d.minchange){  //int abs
      _changed=true;
    }
    d.lastreadtime=millis();
  }

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

    Homie.getLogger() << "light tcs " << ": " << d.value << endl;
    #if defined(SENSOR_LDR) || defined(SENSOR_BH1750)
      sensorNode.setProperty("light_tcs").send(String(d.value));
    #else
      sensorNode->setProperty("light").send(String(d.value));
    #endif
    
    d.lastsentvalue=d.value;
    
    d.lastsent=millis();
  }
}
void Sensor_TCS34725::loop_colortemp()
{
  sensordata &d=data_colortemp;
  
  bool _changed=false;
  if (millis() >= (d.lastreadtime+d.readdelay)) {
    if (millis() >= (lastread_tcs34725+d.readdelay)) { //avoid reading sensor twice in a short time
      //tcs.getRawData(&value_tcs_r, &value_tcs_g, &value_tcs_b, &value_tcs_c);
      tcs->getData();
      lastread_tcs34725=millis();
      if (tcs->isSaturated){
        Serial.println("Warning: tcs34725 is saturated");
      }
    }
    // colorTemp = tcs.calculateColorTemperature(r, g, b);
    //value_colortemp = tcs.calculateColorTemperature_dn40(value_tcs_r, value_tcs_g, value_tcs_b, value_tcs_c);
    if (!tcs->isSaturated){
      d.value = tcs->ct; //with agc
    }
    
    

    if (abs((int)d.lastsentvalue-d.value)>=d.minchange){ //int abs
      _changed=true;
    }
    d.lastreadtime=millis();
  }

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

    Homie.getLogger() << "colortemp tcs " << ": " << d.value << endl;
    if (tcs->lux>=TCS34725_MINLUXFORCT) {
      if (d.value > 1) {
        sensorNode->setProperty("colortemp").send(String(d.value));
      }else{
        Homie.getLogger() << "didn't send tcs ct because value is too low" << endl;
        sensorNode->setProperty("colortemp").send(String(-1));
      }
    }else{
      Homie.getLogger() << "didn't send tcs ct because light too low: " << tcs->lux << "lux" << endl;
      sensorNode->setProperty("colortemp").send(String(-1));
    }
        
    d.lastsentvalue=d.value;
    
    d.lastsent=millis();
  }
}

#endif