Daniel Campos Olivares / DHT22

Library for the control of the DHT22.

Dependents:   Interfacage_Disco_DHT22

DHT22.h@0:a4f404326ee0, 2020-04-15 (annotated)

Committer:
dacamposol
Date:
Wed Apr 15 18:45:36 2020 +0000
Revision:
0:a4f404326ee0
Child:
2:8c7fa818f329
Library for the control of the sensor DHT22.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dacamposol 0:a4f404326ee0 1 #ifndef MBED_DHT22_H
dacamposol 0:a4f404326ee0 2 #define MBED_DHT22_H
dacamposol 0:a4f404326ee0 3
dacamposol 0:a4f404326ee0 4 #include "mbed.h"
dacamposol 0:a4f404326ee0 5
dacamposol 0:a4f404326ee0 6 class DHT22
dacamposol 0:a4f404326ee0 7 {
dacamposol 0:a4f404326ee0 8 private:
dacamposol 0:a4f404326ee0 9 PinName pin_name;
dacamposol 0:a4f404326ee0 10 int m_temperature, m_humidity;
dacamposol 0:a4f404326ee0 11
dacamposol 0:a4f404326ee0 12 short shortFromBits(bool bits[]);
dacamposol 0:a4f404326ee0 13
dacamposol 0:a4f404326ee0 14 public:
dacamposol 0:a4f404326ee0 15 /* Instantiates a new DHT22 object
dacamposol 0:a4f404326ee0 16 * - param PinName name of the pin where the DHT22 is connected
dacamposol 0:a4f404326ee0 17 */
dacamposol 0:a4f404326ee0 18 DHT22(PinName);
dacamposol 0:a4f404326ee0 19
dacamposol 0:a4f404326ee0 20 /* Populates the values stored in the fields m_temperature and m_humidity
dacamposol 0:a4f404326ee0 21 * - PRE: The object DHT22 is instantiated and the sensor connected.
dacamposol 0:a4f404326ee0 22 */
dacamposol 0:a4f404326ee0 23 int read();
dacamposol 0:a4f404326ee0 24
dacamposol 0:a4f404326ee0 25 /* Returns the value of the temperature captured by the sensor
dacamposol 0:a4f404326ee0 26 * - PRE: The method read() has been performed at least once.
dacamposol 0:a4f404326ee0 27 */
dacamposol 0:a4f404326ee0 28 int getTemperature();
dacamposol 0:a4f404326ee0 29
dacamposol 0:a4f404326ee0 30 /* Returns the value of the humidity captured by the sensor
dacamposol 0:a4f404326ee0 31 * - PRE: The method read() has been performed at least once.
dacamposol 0:a4f404326ee0 32 */
dacamposol 0:a4f404326ee0 33 int getHumidity();
dacamposol 0:a4f404326ee0 34 };
dacamposol 0:a4f404326ee0 35
dacamposol 0:a4f404326ee0 36 #endif