Tasmota/lib/Adafruit_VEML7700/Adafruit_VEML7700.h

122 lines
4.1 KiB
C++

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