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src/components/i2c/drivers/WipperSnapper_I2C_Driver_LPS28DFW.h
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| /*! | ||
| * @file WipperSnapper_I2C_Driver_LPS28DFW.h | ||
| * | ||
| * Device driver for a LPS28DFW precision pressure sensor breakout. | ||
| * | ||
| * 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 2025 for Adafruit Industries. | ||
| * | ||
| * MIT license, all text here must be included in any redistribution. | ||
| * | ||
| */ | ||
|
|
||
| #ifndef WipperSnapper_I2C_Driver_LPS28DFW_H | ||
| #define WipperSnapper_I2C_Driver_LPS28DFW_H | ||
|
|
||
| #include "WipperSnapper_I2C_Driver.h" | ||
| #include <Adafruit_LPS28.h> | ||
|
|
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| /**************************************************************************/ | ||
| /*! | ||
| @brief Class that provides a sensor driver for the LPS28DFW temperature | ||
| and pressure sensor. | ||
| */ | ||
| /**************************************************************************/ | ||
| class WipperSnapper_I2C_Driver_LPS28DFW : public WipperSnapper_I2C_Driver { | ||
|
|
||
| public: | ||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Constructor for an LPS28DFW sensor. | ||
| @param i2c | ||
| The I2C interface. | ||
| @param sensorAddress | ||
| 7-bit device address. | ||
| */ | ||
| /*******************************************************************************/ | ||
| WipperSnapper_I2C_Driver_LPS28DFW(TwoWire *i2c, uint16_t sensorAddress) | ||
| : WipperSnapper_I2C_Driver(i2c, sensorAddress) { | ||
| _i2c = i2c; | ||
| _sensorAddress = sensorAddress; | ||
| } | ||
|
|
||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Destructor for an LPS28DFW sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| ~WipperSnapper_I2C_Driver_LPS28DFW() { delete _lps28; } | ||
|
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Initializes the LPS28DFW sensor and begins I2C. | ||
| @returns True if initialized successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool begin() { | ||
| _lps28 = new Adafruit_LPS28(); | ||
| // attempt to initialize LPS28DFW | ||
| if (!_lps28->begin(_i2c, _sensorAddress)) | ||
| return false; | ||
|
|
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| // Set up sample rate and filter initialization | ||
| if (!_lps28->setDataRate(LPS28_ODR_ONESHOT)) { | ||
| WS_DEBUG_PRINTLN("Failed to set data rate"); | ||
| return false; | ||
| } | ||
| if (!_lps28->setAveraging(LPS28_AVG_512)) { | ||
| WS_DEBUG_PRINTLN("Failed to set averaging"); | ||
| return false; | ||
| } | ||
| if (!_lps28->setFullScaleMode(true)) { | ||
| WS_DEBUG_PRINTLN("Failed to set 4060hPa max mode"); | ||
| return false; | ||
| } | ||
|
|
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| return true; | ||
| } | ||
|
|
||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads the sensor and stores the data in the object. | ||
| @returns True if the sensor was read successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool readSensor() { | ||
| // grab one reading to seed the sensor | ||
| if (!_lps28->triggerOneShot()) { | ||
| return false; | ||
| } | ||
|
|
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| // Wait (block up to 100ms) until data is ready | ||
| for (uint8_t i = 0; i < 100; i++) { | ||
| if (_lps28->getStatus() & LPS28_STATUS_PRESS_READY) { | ||
| if (_temp == NULL) { | ||
| _temp = _lps28->getTemperatureSensor(); | ||
| } | ||
| if (_pressure == NULL) { | ||
| _pressure = _lps28->getPressureSensor(); | ||
| } | ||
| return true; | ||
| } | ||
| delay(1); | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Gets the LPS28DFW'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 (!readSensor()) | ||
| return false; | ||
| _temp->getEvent(tempEvent); | ||
| return true; | ||
| } | ||
|
|
||
| /*******************************************************************************/ | ||
| /*! | ||
| @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 (!readSensor()) | ||
| return false; | ||
| _pressure->getEvent(pressureEvent); | ||
| return true; | ||
| } | ||
|
|
||
| protected: | ||
| Adafruit_LPS28 *_lps28 = nullptr; ///< LPS28DFW object | ||
| Adafruit_Sensor *_temp = | ||
| NULL; ///< Ptr to an adafruit_sensor representing the temperature | ||
| Adafruit_Sensor *_pressure = | ||
| NULL; ///< Ptr to an adafruit_sensor representing the pressure | ||
| }; | ||
|
|
||
| #endif // WipperSnapper_I2C_Driver_LPS28DFW |
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