DHT-sensor-library/DHT_U.h

/*!
 *  @file DHT_U.h
 *
 *  DHT Temperature & Humidity Unified Sensor Library<Paste>
 *
 *  Adafruit invests time and resources providing this open source code,
 *  please support Adafruit andopen-source hardware by purchasing products
 *  from Adafruit!
 *
 *  Written by Tony DiCola (Adafruit Industries) 2014.
 *
 *  MIT license, all text above must be included in any redistribution
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef DHT_U_H
#define DHT_U_H

#include <Adafruit_Sensor.h>
#include <DHT.h>

#define DHT_SENSOR_VERSION 1 /**< Sensor Version */

/*!
 *  @brief  Class that stores state and functions for interacting with
 * DHT_Unified.
 */
class DHT_Unified {
public:
  DHT_Unified(uint8_t pin, uint8_t type, uint8_t count = 6,
              int32_t tempSensorId = -1, int32_t humiditySensorId = -1);
  void begin();

  /*!
   *  @brief  Class that stores state and functions about Temperature
   */
  class Temperature : public Adafruit_Sensor {
  public:
    Temperature(DHT_Unified *parent, int32_t id);
    bool getEvent(sensors_event_t *event);
    void getSensor(sensor_t *sensor);

  private:
    DHT_Unified *_parent;
    int32_t _id;
  };

  /*!
   *  @brief  Class that stores state and functions about Humidity
   */
  class Humidity : public Adafruit_Sensor {
  public:
    Humidity(DHT_Unified *parent, int32_t id);
    bool getEvent(sensors_event_t *event);
    void getSensor(sensor_t *sensor);

  private:
    DHT_Unified *_parent;
    int32_t _id;
  };

  /*!
   *  @brief  Returns temperature stored in _temp
   *  @return Temperature value
   */
  Temperature temperature() { return _temp; }

  /*!
   *  @brief  Returns humidity stored in _humidity
   *  @return Humidity value
   */
  Humidity humidity() { return _humidity; }

private:
  DHT _dht;
  uint8_t _type;
  Temperature _temp;
  Humidity _humidity;

  void setName(sensor_t *sensor);
  void setMinDelay(sensor_t *sensor);
};

#endif