This file contains API for HTU21D Click driver. More...

#include "drv_digital_out.h"
#include "drv_i2c_master.h"

Data Structures
struct	htu21d_t
	Click ctx object definition. More...

struct	htu21d_cfg_t
	Click configuration structure definition. More...

Macros
#define	HTU21D_MAP_MIKROBUS(cfg, mikrobus)

#define	HTU21D_RETVAL uint8_t

#define	HTU21D_OK 0x00

#define	HTU21D_INIT_ERROR 0xFF

#define	HTU21D_I2C_ADDRESS 0x40

#define	HTU21D_USER_REG_WRITE 0xE6

#define	HTU21D_USER_REG_READ 0xE7

#define	HTU21D_HEATER_REG_WRITE 0x51

#define	HTU21D_HEATER_REG_READ 0x11

#define	HTU21D_SOFT_RESET 0xFE

#define	HTU21D_SERIAL1_READ1 0xFA

#define	HTU21D_SERIAL1_READ2 0x0F

#define	HTU21D_SERIAL2_READ1 0xFC

#define	HTU21D_SERIAL2_READ2 0xC9

#define	HTU21D_SI7013_CHIPID 0x0D

#define	HTU21D_SI7020_CHIPID 0x14

#define	HTU21D_SI7021_CHIPID 0x15

#define	HTU21D_CHIPID 0x32

#define	HTU21D_FIRMWARE_READ1 0x84

#define	HTU21D_FIRMWARE_READ2 0xB8

#define	HTU21D_FIRMWARE_V1 0xFF

#define	HTU21D_FIRMWARE_V2 0x20

#define	HTU21D_FORCE_READ_TEMP 0xFE

#define	HTU21D_ERROR 0xFF

#define	HTU21D_RES_RH12_TEMP14 0x00

#define	HTU21D_RES_RH8_TEMP12 0x01

#define	HTU21D_RES_RH10_TEMP13 0x80

#define	HTU21D_RES_RH11_TEMP11 0x81

#define	HTU21D_TRIG_HUMD_MEASURE_HOLD 0xE5

#define	HTU21D_TRIG_HUMD_MEASURE_NOHOLD 0xF5

#define	HTU21D_TRIG_TEMP_MEASURE_HOLD 0xE3

#define	HTU21D_TRIG_TEMP_MEASURE_NOHOLD 0xF3

#define	HTU21D_ON 0x04

#define	HTU21D_OFF 0xFB

#define	HTU21D_CRC8_POLYNOMINAL 0x1310

#define	HTU21D_DATA_FILTER 0xFFFC

#define	HTU21D_DATA_RESOLUTION 65536.0

#define	HTU21D_TEMP_CALC_COEF 175.72

#define	HTU21D_TEMP_STB_COEF -46.85

#define	HTU21D_HUMI_CALC_COEF 125.0

#define	HTU21D_HUMI_STB_COEF 6.0

Functions
void	htu21d_cfg_setup (htu21d_cfg_t *cfg)
	Config Object Initialization function.

HTU21D_RETVAL	htu21d_init (htu21d_t ctx, htu21d_cfg_t cfg)
	Initialization function.

void	htu21d_generic_write (htu21d_t ctx, uint8_t reg, uint8_t data_buf, uint8_t len)
	Generic write function.

void	htu21d_generic_read (htu21d_t ctx, uint8_t reg, uint8_t data_buf, uint8_t len)
	Generic read function.

uint32_t	htu21d_read_data (htu21d_t *ctx, uint8_t reg_adr)
	Generic read 24-bit data function.

void	htu21d_send_cmd (htu21d_t *ctx, uint8_t cmd_byte)
	Send command function.

float	htu21d_get_temperature (htu21d_t *ctx)
	Get temperature value function.

float	htu21d_get_humidity (htu21d_t *ctx)
	Get humidity value function.

Detailed Description

This file contains API for HTU21D Click driver.

Data Structures