Si7021.h

/*
 Copyright (C) AC SOFTWARE SP. Z O.O.
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
 
#ifndef SRC_SUPLA_SENSOR_SI7021_H_
#define SRC_SUPLA_SENSOR_SI7021_H_
 
// Dependency: Adafruid Si7021 library - use library manager to install it
// https://github.com/adafruit/Adafruit_Si7021
 
#include <Adafruit_Si7021.h>
#include <supla/log_wrapper.h>
 
#include "therm_hygro_meter.h"
 
namespace Supla {
namespace Sensor {
class Si7021 : public ThermHygroMeter {
 public:
  Si7021() {
  }
 
  double getTemp() {
    float value = TEMPERATURE_NOT_AVAILABLE;
    value = sensor.readTemperature();
 
    if (isnan(value)) {
      value = TEMPERATURE_NOT_AVAILABLE;
    }
 
    return value;
  }
 
  double getHumi() {
    float value = HUMIDITY_NOT_AVAILABLE;
    value = sensor.readHumidity();
 
    if (isnan(value)) {
      value = HUMIDITY_NOT_AVAILABLE;
    }
 
    return value;
  }
 
  void onInit() {
    sensor.begin();
 
    switch (sensor.getModel()) {
      case SI_Engineering_Samples:
        SUPLA_LOG_INFO("Found model: SI engineering samples");
        break;
      case SI_7013:
        SUPLA_LOG_INFO("Found model: Si7013");
        break;
      case SI_7020:
        SUPLA_LOG_INFO("Found model: Si7020");
        break;
      case SI_7021:
        SUPLA_LOG_INFO("Found model: Si7021");
        break;
      case SI_UNKNOWN:
      default:
        SUPLA_LOG_INFO("Unknown model");
    }
 
    channel.setNewValue(getTemp(), getHumi());
  }
 
 protected:
  ::Adafruit_Si7021 sensor;  // I2C
};
 
};  // namespace Sensor
};  // namespace Supla
 
#endif  // SRC_SUPLA_SENSOR_SI7021_H_