mirror of https://github.com/arendst/Tasmota.git
122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
/*!
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* @file Adafruit_VEML7700.h
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*
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* I2C Driver for VEML7700 Lux sensor
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*
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* This is a library for the Adafruit VEML7700 breakout:
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* http://www.adafruit.com/
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*
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* Adafruit invests time and resources providing this open source code,
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*please support Adafruit and open-source hardware by purchasing products from
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* Adafruit!
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*
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*
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* BSD license (see license.txt)
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*/
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/*
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* change from device111 for Tasmota
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* Add alternativ Pow function for readLuxNormalized() and readWhiteNormalized()
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*/
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#ifndef _ADAFRUIT_VEML7700_H
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#define _ADAFRUIT_VEML7700_H
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#include "Arduino.h"
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#include <Wire.h>
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#include <Adafruit_I2CDevice.h>
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#include <Adafruit_I2CRegister.h>
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#define VEML7700_I2CADDR_DEFAULT 0x10 ///< I2C address
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#define VEML7700_ALS_CONFIG 0x00 ///< Light configuration register
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#define VEML7700_ALS_THREHOLD_HIGH 0x01 ///< Light high threshold for irq
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#define VEML7700_ALS_THREHOLD_LOW 0x02 ///< Light low threshold for irq
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#define VEML7700_ALS_POWER_SAVE 0x03 ///< Power save regiester
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#define VEML7700_ALS_DATA 0x04 ///< The light data output
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#define VEML7700_WHITE_DATA 0x05 ///< The white light data output
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#define VEML7700_INTERRUPTSTATUS 0x06 ///< What IRQ (if any)
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#define VEML7700_INTERRUPT_HIGH 0x4000 ///< Interrupt status for high threshold
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#define VEML7700_INTERRUPT_LOW 0x8000 ///< Interrupt status for low threshold
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#define VEML7700_GAIN_1 0x00 ///< ALS gain 1x
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#define VEML7700_GAIN_2 0x01 ///< ALS gain 2x
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#define VEML7700_GAIN_1_8 0x02 ///< ALS gain 1/8x
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#define VEML7700_GAIN_1_4 0x03 ///< ALS gain 1/4x
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#define VEML7700_IT_100MS 0x00 ///< ALS intetgration time 100ms
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#define VEML7700_IT_200MS 0x01 ///< ALS intetgration time 200ms
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#define VEML7700_IT_400MS 0x02 ///< ALS intetgration time 400ms
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#define VEML7700_IT_800MS 0x03 ///< ALS intetgration time 800ms
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#define VEML7700_IT_50MS 0x08 ///< ALS intetgration time 50ms
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#define VEML7700_IT_25MS 0x0C ///< ALS intetgration time 25ms
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#define VEML7700_PERS_1 0x00 ///< ALS irq persisance 1 sample
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#define VEML7700_PERS_2 0x01 ///< ALS irq persisance 2 samples
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#define VEML7700_PERS_4 0x02 ///< ALS irq persisance 4 samples
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#define VEML7700_PERS_8 0x03 ///< ALS irq persisance 8 samples
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#define VEML7700_POWERSAVE_MODE1 0x00 ///< Power saving mode 1
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#define VEML7700_POWERSAVE_MODE2 0x01 ///< Power saving mode 2
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#define VEML7700_POWERSAVE_MODE3 0x02 ///< Power saving mode 3
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#define VEML7700_POWERSAVE_MODE4 0x03 ///< Power saving mode 4
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// FastPrecisePowf from tasmota/support_float.ino
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extern float FastPrecisePowf(const float x, const float y);
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/*!
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* @brief Class that stores state and functions for interacting with
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* VEML7700 Temp Sensor
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*/
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class Adafruit_VEML7700 {
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public:
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Adafruit_VEML7700();
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boolean begin(TwoWire *theWire = &Wire);
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void enable(bool enable);
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bool enabled(void);
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void interruptEnable(bool enable);
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bool interruptEnabled(void);
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void setPersistence(uint8_t pers);
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uint8_t getPersistence(void);
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void setIntegrationTime(uint8_t it);
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uint8_t getIntegrationTime(void);
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void setGain(uint8_t gain);
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uint8_t getGain(void);
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void powerSaveEnable(bool enable);
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bool powerSaveEnabled(void);
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void setPowerSaveMode(uint8_t mode);
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uint8_t getPowerSaveMode(void);
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void setLowThreshold(uint16_t value);
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uint16_t getLowThreshold(void);
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void setHighThreshold(uint16_t value);
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uint16_t getHighThreshold(void);
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uint16_t interruptStatus(void);
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float readLux();
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float readLuxNormalized();
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uint16_t readALS();
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float readWhite();
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float readWhiteNormalized();
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private:
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Adafruit_I2CRegister *ALS_Config, *ALS_Data, *White_Data,
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*ALS_HighThreshold, *ALS_LowThreshold, *Power_Saving, *Interrupt_Status;
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Adafruit_I2CRegisterBits *ALS_Shutdown, *ALS_Interrupt_Enable,
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*ALS_Persistence, *ALS_Integration_Time, *ALS_Gain,
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*PowerSave_Enable, *PowerSave_Mode;
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float normalize_resolution(float value);
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static inline float pow(float a, float b) { return FastPrecisePowf(a, b); }
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Adafruit_I2CDevice *i2c_dev;
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};
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#endif
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