st-anything/lib/Max44009/Max44009.h

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2023-03-11 14:11:03 +00:00
#ifndef MAX44009_H
#define MAX44009_H
//
// FILE: Max44009.h
// AUTHOR: Rob dot Tillaart at gmail dot com
// VERSION: 0.1.9
// PURPOSE: library for MAX44009 lux sensor Arduino
// HISTORY: See Max440099.cpp
//
// Released to the public domain
//
#include "Wire.h"
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#define MAX44009_LIB_VERSION "0.1.9"
// I2C ADDRESSES
#define MAX44009_A0_LOW 0x4A
#define MAX44009_A0_HIGH 0x4B
// REGISTERS
#define MAX44009_INTERRUPT_STATUS 0x00
#define MAX44009_INTERRUPT_ENABLE 0x01
#define MAX44009_CONFIGURATION 0x02
#define MAX44009_LUX_READING_HIGH 0x03
#define MAX44009_LUX_READING_LOW 0x04
#define MAX44009_THRESHOLD_HIGH 0x05
#define MAX44009_THRESHOLD_LOW 0x06
#define MAX44009_THRESHOLD_TIMER 0x07
// CONFIGURATION MASKS
#define MAX44009_CFG_CONTINUOUS 0x80
#define MAX44009_CFG_MANUAL 0x40
#define MAX44009_CFG_CDR 0x08
#define MAX44009_CFG_TIMER 0x07
class Max44009
{
public:
// dataPin and clockPin are only used by ESP8266
// for UNO ignore these (and its warning)
Max44009(const uint8_t address, const uint8_t dataPin = 5, const uint8_t clockPin = 4);
Max44009(const uint8_t address, bool continuousMode);
float getLux();
int getError();
void setHighThreshold(const float);
float getHighThreshold(void);
void setLowThreshold(const float);
float getLowThreshold(void);
void setThresholdTimer(const uint8_t);
uint8_t getThresholdTimer();
void enableInterrupt() { write(MAX44009_INTERRUPT_ENABLE, 1); };
void disableInterrupt() { write(MAX44009_INTERRUPT_ENABLE, 0); };
bool interruptEnabled() { return read(MAX44009_INTERRUPT_ENABLE) & 0x01; };
uint8_t getInterruptStatus() { return read(MAX44009_INTERRUPT_STATUS) & 0x01; };
// check datasheet for detailed behavior
void setConfiguration(uint8_t);
uint8_t getConfiguration();
void setAutomaticMode();
void setContinuousMode();
// CDR = Current Divisor Ratio
// CDR = 1 ==> only 1/8th is measured
// TIM = Time Integration Measurement (table)
// 000 800ms
// 001 400ms
// 010 200ms
// 011 100ms
// 100 50ms
// 101 25ms
// 110 12.5ms
// 111 6.25ms
void setManualMode(uint8_t CDR, uint8_t TIM);
private:
void setThreshold(uint8_t, float);
float getThreshold(uint8_t);
uint8_t read(uint8_t reg);
void write(uint8_t, uint8_t);
uint8_t _address;
uint8_t _data;
int _error;
};
#endif
// END OF FILE