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124 changes: 124 additions & 0 deletions
124
src/components/i2c/drivers/WipperSnapper_I2C_Driver_HDC302X.h
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| /*! | ||
| * @file WipperSnapper_I2C_Driver_HDC302X.h | ||
| * | ||
| * Device driver for an HDC302X Humidity and Temperature sensor. | ||
| */ | ||
|
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| #ifndef WipperSnapper_I2C_Driver_HDC302X_H | ||
| #define WipperSnapper_I2C_Driver_HDC302X_H | ||
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| #include "WipperSnapper_I2C_Driver.h" | ||
| #include <Adafruit_HDC302X.h> | ||
|
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| /**************************************************************************/ | ||
| /*! | ||
| @brief Class that provides a sensor driver for the HDC302X humidity and | ||
| temperature sensor. This implementation uses the 1 Hz data rate. | ||
| */ | ||
| /**************************************************************************/ | ||
| class WipperSnapper_I2C_Driver_HDC302X : public WipperSnapper_I2C_Driver { | ||
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| public: | ||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Constructor for an HDC302X sensor. | ||
| @param i2c | ||
| The I2C interface. | ||
| @param sensorAddress | ||
| 7-bit device address. | ||
| */ | ||
| /*******************************************************************************/ | ||
| WipperSnapper_I2C_Driver_HDC302X(TwoWire *i2c, uint16_t sensorAddress) | ||
| : WipperSnapper_I2C_Driver(i2c, sensorAddress) { | ||
| _i2c = i2c; | ||
| _sensorAddress = sensorAddress; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Destructor for an HDC302X sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| ~WipperSnapper_I2C_Driver_HDC302X() { delete _hdc302x; } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Initializes the HDC302X sensor and begins I2C. | ||
| @returns True if initialized successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool begin() { | ||
| // attempt to initialize the HDC302X using the I2C interface | ||
| _hdc302x = new Adafruit_HDC302x(); | ||
| if (!_hdc302x->begin(_sensorAddress, _i2c)) | ||
| return false; | ||
|
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| // set the HDC302X's data rate to 1 Hz lowest noise | ||
| _hdc302x->setAutoMode(EXIT_AUTO_MODE); | ||
|
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| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads the HDC302X's temperature and humidity data. | ||
| @returns True if the data was read successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool readSensorData() { | ||
| uint16_t status = _hdc302x->readStatus(); | ||
| if (status & 0x0010) { | ||
| WS_DEBUG_PRINTLN(F("Device Reset Detected")); | ||
| return false; | ||
| } | ||
| if (status & 0x0001) { | ||
| WS_DEBUG_PRINTLN( | ||
| F("Checksum Verification Fail (incorrect checksum received)")); | ||
| return false; | ||
| } | ||
| if (!_hdc302x->readTemperatureHumidityOnDemand(_temp, _humidity, | ||
| TRIGGERMODE_LP0)) { | ||
| WS_DEBUG_PRINTLN(F("Failed to read temperature and humidity.")); | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Gets the HDC302X's current temperature. | ||
| @param tempEvent | ||
| Pointer to an Adafruit_Sensor event. | ||
| @returns True if the temperature was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventAmbientTemp(sensors_event_t *tempEvent) { | ||
| if (readSensorData() == false) | ||
| return false; | ||
| return tempEvent->temperature = _temp; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Gets the HDC302X's current humidity. | ||
| @param humidEvent | ||
| Pointer to an Adafruit_Sensor event. | ||
| @returns True if the humidity was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventRelativeHumidity(sensors_event_t *humidEvent) { | ||
| if (readSensorData() == false) | ||
| return false; | ||
| return humidEvent->relative_humidity = _humidity; | ||
| } | ||
|
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| protected: | ||
| Adafruit_HDC302x *_hdc302x; ///< Pointer to an HDC302X object | ||
| double _temp = 0.0; ///< Holds data for the HDC302X's temperature sensor | ||
| double _humidity = 0.0; ///< Holds data for the HDC302X's humidity sensor | ||
| }; | ||
|
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| #endif // WipperSnapper_I2C_Driver_HDC302X |