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139
src/components/i2c/drivers/WipperSnapper_I2C_Driver_BMP280.h
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| /*! | ||
| * @file WipperSnapper_I2C_Driver_BMP280.h | ||
| * | ||
| * Device driver for an AHT Humidity and Temperature sensor. | ||
| * | ||
| * Adafruit invests time and resources providing this open source code, | ||
| * please support Adafruit and open-source hardware by purchasing | ||
| * products from Adafruit! | ||
| * | ||
| * Copyright (c) Tyeth Gundry 2023 for Adafruit Industries. | ||
| * | ||
| * MIT license, all text here must be included in any redistribution. | ||
| * | ||
| */ | ||
|
|
||
| #ifndef WipperSnapper_I2C_Driver_BMP280_H | ||
| #define WipperSnapper_I2C_Driver_BMP280_H | ||
|
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| #include "WipperSnapper_I2C_Driver.h" | ||
| #include <Adafruit_BMP280.h> | ||
|
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| #define SEALEVELPRESSURE_HPA (1013.25) ///< Default sea level pressure, in hPa | ||
|
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| /**************************************************************************/ | ||
| /*! | ||
| @brief Class that provides a sensor driver for the BMP280 temperature | ||
| and pressure sensor. | ||
| */ | ||
| /**************************************************************************/ | ||
| class WipperSnapper_I2C_Driver_BMP280 : public WipperSnapper_I2C_Driver { | ||
|
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| public: | ||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Constructor for an BMP280 sensor. | ||
| @param i2c | ||
| The I2C interface. | ||
| @param sensorAddress | ||
| 7-bit device address. | ||
| */ | ||
| /*******************************************************************************/ | ||
| WipperSnapper_I2C_Driver_BMP280(TwoWire *i2c, uint16_t sensorAddress) | ||
| : WipperSnapper_I2C_Driver(i2c, sensorAddress) { | ||
| _i2c = i2c; | ||
| _sensorAddress = sensorAddress; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Destructor for an BMP280 sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| ~WipperSnapper_I2C_Driver_BMP280() { delete _bmp; } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Initializes the BMP280 sensor and begins I2C. | ||
| @returns True if initialized successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool begin() { | ||
| _bmp = new Adafruit_BMP280(_i2c); | ||
| // attempt to initialize BMP280 | ||
| if (!_bmp->begin(_sensorAddress)) | ||
| return false; | ||
|
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| // set up sampling as recommended in Adafruit library | ||
| _bmp->setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */ | ||
| Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */ | ||
| Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */ | ||
| Adafruit_BMP280::FILTER_X16, /* Filtering. */ | ||
| Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */ | ||
|
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| // configure BMP280 device | ||
| _bmp_temp = _bmp->getTemperatureSensor(); | ||
| _bmp_pressure = _bmp->getPressureSensor(); | ||
| return true; | ||
| } | ||
|
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Gets the BMP280'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 (_bmp_temp == NULL) | ||
| return false; | ||
| _bmp_temp->getEvent(tempEvent); | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads a pressure sensor and converts | ||
| the reading into the expected SI unit. | ||
| @param pressureEvent | ||
| Pointer to an Adafruit_Sensor event. | ||
| @returns True if the sensor event was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventPressure(sensors_event_t *pressureEvent) { | ||
| if (_bmp_pressure == NULL) | ||
| return false; | ||
| _bmp_pressure->getEvent(pressureEvent); | ||
| return true; | ||
| } | ||
|
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||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads a the BMP280's altitude sensor into an event. | ||
| @param altitudeEvent | ||
| Pointer to an adafruit sensor event. | ||
| @returns True if the sensor event was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventAltitude(sensors_event_t *altitudeEvent) { | ||
| // TODO: Note, this is a hack into Adafruit_Sensor, we should really add an | ||
| // altitude sensor type | ||
| altitudeEvent->data[0] = _bmp->readAltitude(SEALEVELPRESSURE_HPA); | ||
| return true; | ||
| } | ||
|
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| protected: | ||
| Adafruit_BMP280 *_bmp; ///< BMP280 object | ||
| Adafruit_Sensor *_bmp_temp = | ||
| NULL; ///< Ptr to an adafruit_sensor representing the temperature | ||
| Adafruit_Sensor *_bmp_pressure = | ||
| NULL; ///< Ptr to an adafruit_sensor representing the pressure | ||
| Adafruit_Sensor *_bmp_humidity = | ||
| NULL; ///< Ptr to an adafruit_sensor representing the humidity | ||
| }; | ||
|
|
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| #endif // WipperSnapper_I2C_Driver_BMP280 |