twr_sht30.h

#ifndef _TWR_SHT30_H
#define _TWR_SHT30_H
 
#include <twr_i2c.h>
#include <twr_scheduler.h>
 
 
#define TWR_SHT30_ADDRESS_DEFAULT 0x44
#define TWR_SHT30_ADDRESS_ALTERNATE 0x45
 
 
typedef enum
{
    TWR_SHT30_EVENT_ERROR = 0,
 
    TWR_SHT30_EVENT_UPDATE = 1
 
} twr_sht30_event_t;
 
 
typedef struct twr_sht30_t twr_sht30_t;
 
 
typedef enum
{
    TWR_SHT30_STATE_ERROR = -1,
    TWR_SHT30_STATE_INITIALIZE = 0,
    TWR_SHT30_STATE_MEASURE = 1,
    TWR_SHT30_STATE_READ = 2,
    TWR_SHT30_STATE_UPDATE = 3
 
} twr_sht30_state_t;
 
struct twr_sht30_t
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
    twr_scheduler_task_id_t _task_id_interval;
    twr_scheduler_task_id_t _task_id_measure;
    void (*_event_handler)(twr_sht30_t *, twr_sht30_event_t, void *);
    void *_event_param;
    bool _measurement_active;
    twr_tick_t _update_interval;
    twr_sht30_state_t _state;
    twr_tick_t _tick_ready;
    bool _humidity_valid;
    bool _temperature_valid;
    uint16_t _reg_humidity;
    uint16_t _reg_temperature;
};
 
 
 
void twr_sht30_init(twr_sht30_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
void twr_sht30_deinit(twr_sht30_t *self);
 
 
void twr_sht30_set_event_handler(twr_sht30_t *self, void (*event_handler)(twr_sht30_t *, twr_sht30_event_t, void *), void *event_param);
 
 
void twr_sht30_set_update_interval(twr_sht30_t *self, twr_tick_t interval);
 
 
bool twr_sht30_measure(twr_sht30_t *self);
 
 
bool twr_sht30_get_humidity_raw(twr_sht30_t *self, uint16_t *raw);
 
 
bool twr_sht30_get_humidity_percentage(twr_sht30_t *self, float *percentage);
 
 
bool twr_sht30_get_temperature_raw(twr_sht30_t *self, uint16_t *raw);
 
 
bool twr_sht30_get_temperature_celsius(twr_sht30_t *self, float *celsius);
 
 
bool twr_sht30_get_temperature_fahrenheit(twr_sht30_t *self, float *fahrenheit);
 
 
bool twr_sht30_get_temperature_kelvin(twr_sht30_t *self, float *kelvin);
 
 
#endif // _TWR_SHT30_H