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Merge pull request #501 from tyeth/add-LTR329-303
Add LTR329 and LTR303
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src/components/i2c/drivers/WipperSnapper_I2C_Driver_LTR329_LTR303.h
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| /*! | ||
| * @file WipperSnapper_I2C_Driver_LTR329_LTR303.h | ||
| * | ||
| * Device driver for the LTR329 + LTR303 (329+interrupt) light sensors. | ||
| * | ||
| * 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_LTR329_LTR303_H | ||
| #define WipperSnapper_I2C_Driver_LTR329_LTR303_H | ||
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| #include "WipperSnapper_I2C_Driver.h" | ||
| #include <Adafruit_LTR329_LTR303.h> | ||
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| /**************************************************************************/ | ||
| /*! | ||
| @brief Class that provides a driver interface for a LTR329/303 sensor. | ||
| */ | ||
| /**************************************************************************/ | ||
| class WipperSnapper_I2C_Driver_LTR329_LTR303 : public WipperSnapper_I2C_Driver { | ||
| public: | ||
| /*******************************************************************************/ | ||
| /*! | ||
| @brief Constructor for a LTR329/303 sensor. | ||
| @param i2c | ||
| The I2C interface. | ||
| @param sensorAddress | ||
| The 7-bit I2C address of the sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| WipperSnapper_I2C_Driver_LTR329_LTR303(TwoWire *i2c, uint16_t sensorAddress) | ||
| : WipperSnapper_I2C_Driver(i2c, sensorAddress) { | ||
| _i2c = i2c; | ||
| _sensorAddress = sensorAddress; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Destructor for an LTR329/303 sensor. | ||
| */ | ||
| /*******************************************************************************/ | ||
| ~WipperSnapper_I2C_Driver_LTR329_LTR303() { delete _LTR329; } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Initializes the LTR329/303 sensor and begins I2C. | ||
| @returns True if initialized successfully, False otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool begin() { | ||
| _LTR329 = new Adafruit_LTR329(); | ||
| // Attempt to initialize LTR329 | ||
| if (!_LTR329->begin(_i2c)) | ||
| return false; | ||
|
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| // Configure LTR329 sensor - tested on a dull British day Oct'23 @7kLux | ||
| // Matches similar lux value from LTR390 with default configuration. | ||
| _LTR329->setGain(LTR3XX_GAIN_48); | ||
| _LTR329->setIntegrationTime(LTR3XX_INTEGTIME_100); | ||
| _LTR329->setMeasurementRate(LTR3XX_MEASRATE_100); | ||
| _delayBetweenReads = 110; // 100ms measurement time + 10ms fudge-factor | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads the LTR329's ambient light level ([Visible+IR] - IR-only) | ||
| @param lightEvent | ||
| Light sensor reading. | ||
| @returns True if the sensor event was obtained successfully, False | ||
| otherwise. | ||
| */ | ||
| /*******************************************************************************/ | ||
| bool getEventLight(sensors_event_t *lightEvent) { | ||
| if (!_LTR329->newDataAvailable()) | ||
| return false; | ||
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| uint16_t visible_plus_ir, infrared; | ||
| _LTR329->readBothChannels(visible_plus_ir, infrared); | ||
| lightEvent->light = visible_plus_ir - infrared; | ||
| return true; | ||
| } | ||
|
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| /*******************************************************************************/ | ||
| /*! | ||
| @brief Reads the LTR329's infrared 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) { | ||
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| if (!_LTR329->newDataAvailable()) { | ||
| delay( | ||
| _delayBetweenReads); // Raw comes after Light event and needs new data | ||
| if (!_LTR329->newDataAvailable()) | ||
| return false; | ||
| } | ||
|
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| uint16_t visible_plus_ir, infrared; | ||
| _LTR329->readBothChannels(visible_plus_ir, infrared); | ||
| rawEvent->data[0] = (float)infrared; | ||
| return true; | ||
| } | ||
|
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| protected: | ||
| Adafruit_LTR329 *_LTR329; ///< Pointer to LTR329 light sensor object | ||
|
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| /** | ||
| * @brief The delay between consecutive reads in milliseconds. | ||
| */ | ||
| uint16_t _delayBetweenReads; | ||
| }; | ||
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| #endif // WipperSnapper_I2C_Driver_LTR329_LTR303 |