This file contains API for TempHum 21 Click Driver. More...

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

Data Structures
struct	temphum21_t
	TempHum 21 Click context object. More...

struct	temphum21_cfg_t
	TempHum 21 Click configuration object. More...

Macros
#define	TEMPHUM21_REG_ALARM_HIGH_ON 0x18
	TempHum 21 register list.

#define	TEMPHUM21_REG_ALARM_HIGH_OFF 0x19

#define	TEMPHUM21_REG_ALARM_LOW_ON 0x1A

#define	TEMPHUM21_REG_ALARM_LOW_OFF 0x1B

#define	TEMPHUM21_REG_CUST_CONFIG 0x1C

#define	TEMPHUM21_REG_CUST_ID2 0x1E

#define	TEMPHUM21_REG_CUST_ID3 0x1F

#define	TEMPHUM21_CMD_WRITE_EEPROM 0x40

#define	TEMPHUM21_CMD_START_NOM 0x80

#define	TEMPHUM21_CMD_START_CM 0xA0

#define	TEMPHUM21_STATUS_NORMAL_OP 0x00
	TempHum 21 status/diagnostic/response bits.

#define	TEMPHUM21_STATUS_STALE_DATA 0x40

#define	TEMPHUM21_STATUS_COMMAND_MODE 0x80

#define	TEMPHUM21_STATUS_BIT_MASK 0xC0

#define	TEMPHUM21_DIAGNOSTIC_CORR_EP_ERR 0x04

#define	TEMPHUM21_DIAGNOSTIC_UNCORR_EP_ERR 0x08

#define	TEMPHUM21_DIAGNOSTIC_RAM_PAR_ERR 0x10

#define	TEMPHUM21_DIAGNOSTIC_CONFIG_ERR 0x20

#define	TEMPHUM21_DIAGNOSTIC_BIT_MASK 0x3C

#define	TEMPHUM21_RESPONSE_BUSY 0x00

#define	TEMPHUM21_RESPONSE_ACK 0x01

#define	TEMPHUM21_RESPONSE_NACK 0x02

#define	TEMPHUM21_RESPONSE_BIT_MASK 0x03

#define	TEMPHUM21_DATA_RES 0x3FFF
	TempHum 21 measurement calculation values.

#define	TEMPHUM21_TEMP_RES 165.0

#define	TEMPHUM21_TEMP_OFFSET 40.0

#define	TEMPHUM21_HUM_RES 100.0

#define	TEMPHUM21_ALARM_HIGH_ON_80PCT 0x3333
	TempHum 21 alarm configuration values.

#define	TEMPHUM21_ALARM_HIGH_OFF_75PCT 0x3000

#define	TEMPHUM21_ALARM_LOW_ON_20PCT 0x0CCD

#define	TEMPHUM21_ALARM_LOW_OFF_25PCT 0x1000

#define	TEMPHUM21_SET_DEV_ADDR 0x27
	TempHum 21 device address setting.

#define	TEMPHUM21_MAP_MIKROBUS(cfg, mikrobus)
	MikroBUS pin mapping.

Enumerations
enum	temphum21_return_value_t { TEMPHUM21_OK = 0 , TEMPHUM21_ERROR = -1 }
	TempHum 21 Click return value data. More...

Functions
void	temphum21_cfg_setup (temphum21_cfg_t *cfg)
	TempHum 21 configuration object setup function.

err_t	temphum21_init (temphum21_t ctx, temphum21_cfg_t cfg)
	TempHum 21 initialization function.

err_t	temphum21_default_cfg (temphum21_t *ctx)
	TempHum 21 default configuration function.

err_t	temphum21_request_measurement (temphum21_t *ctx)
	TempHum 21 request measurement function.

err_t	temphum21_read_measurement (temphum21_t ctx, float temperature, float *humidity)
	TempHum 21 read measurement function.

uint8_t	temphum21_get_all_pin (temphum21_t *ctx)
	TempHum 21 get all pin function.

uint8_t	temphum21_get_alh_pin (temphum21_t *ctx)
	TempHum 21 get alh pin function.

void	temphum21_enable_device (temphum21_t *ctx)
	TempHum 21 enable device function.

void	temphum21_disable_device (temphum21_t *ctx)
	TempHum 21 disable device function.

err_t	temphum21_enter_command_mode (temphum21_t *ctx)
	TempHum 21 enter command mode function.

err_t	temphum21_exit_command_mode (temphum21_t *ctx)
	TempHum 21 exit command mode function.

err_t	temphum21_eeprom_read (temphum21_t ctx, uint8_t address, uint8_t status, uint16_t *data_out)
	TempHum 21 eeprom read function.

err_t	temphum21_eeprom_write (temphum21_t *ctx, uint8_t address, uint16_t data_in)
	TempHum 21 eeprom write function.

Detailed Description

This file contains API for TempHum 21 Click Driver.

Enumeration Type Documentation

TempHum 21 Click return value data.

Predefined enum values for driver return values.

Enumerator
TEMPHUM21_OK
TEMPHUM21_ERROR