aht20.h

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#ifndef INC_SENSORS_INC_AHT20_H_
#define INC_SENSORS_INC_AHT20_H_
 
#include "stdint.h"
#include "stddef.h"

#define AHT20_ADDRESS     (0x38 << 1)

#define AHT20_CMD_STATUS  0x71

#define AHT20_CMD_INIT    0xBE

#define AHT20_CMD_TRIGGER 0xAC

typedef int8_t (*AHT20_I2C_Read_Func)(uint8_t dev_addr, uint8_t reg_addr,
                                       uint8_t *data, uint16_t len);

typedef int8_t (*AHT20_I2C_Write_Func)(uint8_t dev_addr, uint8_t reg_addr,
                                        uint8_t *data, uint16_t len);

typedef void (*AHT20_Delay_Func)(uint32_t ms);

typedef struct {
    AHT20_I2C_Read_Func  i2c_read;   
    AHT20_I2C_Write_Func i2c_write;  
    AHT20_Delay_Func     delay_ms;   
    float humidity;                  
    float temperature;               
} AHT20_HandleTypeDef;

int8_t AHT20_Init(AHT20_HandleTypeDef *dev);

int8_t AHT20_Read(AHT20_HandleTypeDef *dev);
 
#endif /* INC_SENSORS_INC_AHT20_H_ */