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Merge pull request #499 from tyeth/add-LTR390
Add LTR390 sensor with switching mode example
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src/components/i2c/drivers/WipperSnapper_I2C_Driver_LTR390.h
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| /*! | ||
| * @file WipperSnapper_I2C_Driver_LTR390.h | ||
| * | ||
| * Device driver for the LTR390 light 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_LTR390_H | ||
| #define WipperSnapper_I2C_Driver_LTR390_H | ||
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| #include "WipperSnapper_I2C_Driver.h" | ||
| #include <Adafruit_LTR390.h> | ||
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| /**************************************************************************/ | ||
| /*! | ||
| @brief Class that provides a driver interface for a LTR390 sensor. | ||
| */ | ||
| /**************************************************************************/ | ||
| class WipperSnapper_I2C_Driver_LTR390 : public WipperSnapper_I2C_Driver { | ||
| public: | ||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Constructor for a LTR390 sensor. | ||
| @param i2c | ||
| The I2C interface. | ||
| @param sensorAddress | ||
| The 7-bit I2C address of the sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| WipperSnapper_I2C_Driver_LTR390(TwoWire *i2c, uint16_t sensorAddress) | ||
| : WipperSnapper_I2C_Driver(i2c, sensorAddress) { | ||
| _i2c = i2c; | ||
| _sensorAddress = sensorAddress; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Destructor for an LTR390 sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| ~WipperSnapper_I2C_Driver_LTR390() { delete _ltr390; } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Initializes the LTR390 sensor and begins I2C. | ||
| @returns True if initialized successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool begin() { | ||
| _ltr390 = new Adafruit_LTR390(); | ||
| // Attempt to initialize LTR390 | ||
| if (!_ltr390->begin(_i2c)) | ||
| return false; | ||
|
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| // Configure LTR390 sensor | ||
| // Note: This driver uses the default configuration from | ||
| // https://github.com/adafruit/Adafruit_LTR390/blob/master/examples/ltr390_test/ltr390_test.ino | ||
| _ltr390->setMode(LTR390_MODE_UVS); | ||
| _ltr390->setGain(LTR390_GAIN_3); | ||
| _ltr390->setResolution(LTR390_RESOLUTION_16BIT); | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Performs a light sensor read using the Adafruit | ||
| Unified Sensor API. | ||
| @param lightEvent | ||
| Light sensor reading, in lux. | ||
| @returns True if the sensor event was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventLight(sensors_event_t *lightEvent) { | ||
| if (_ltr390->getMode() != LTR390_MODE_ALS) { | ||
| _ltr390->setMode(LTR390_MODE_ALS); | ||
| delay(110); | ||
| } | ||
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| if (!_ltr390->newDataAvailable()) | ||
| return false; | ||
|
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| lightEvent->light = _ltr390->readALS(); | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads the LTR390's UV value into an event. | ||
| @param rawEvent | ||
| Pointer to an adafruit sensor event. | ||
| @returns True if the sensor event was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventRaw(sensors_event_t *rawEvent) { | ||
| if (_ltr390->getMode() != LTR390_MODE_UVS) { | ||
| _ltr390->setMode(LTR390_MODE_UVS); | ||
| delay(110); | ||
| } | ||
|
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| if (!_ltr390->newDataAvailable()) | ||
| return false; | ||
|
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| rawEvent->data[0] = (float)_ltr390->readUVS(); | ||
| return true; | ||
| } | ||
|
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| protected: | ||
| Adafruit_LTR390 *_ltr390; ///< Pointer to LTR390 light sensor object | ||
| }; | ||
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| #endif // WipperSnapper_I2C_Driver_LTR390 |