driver sht2x source file More...

#include "driver_sht2x.h"

Include dependency graph for driver_sht2x.c:

Macros
#define	CHIP_NAME "Sensirion SHT2X"
	chip information definition
#define	MANUFACTURER_NAME "Sensirion"
#define	SUPPLY_VOLTAGE_MIN 2.1f
#define	SUPPLY_VOLTAGE_MAX 3.6f
#define	MAX_CURRENT 0.33f
#define	TEMPERATURE_MIN -50.0f
#define	TEMPERATURE_MAX 125.0f
#define	DRIVER_VERSION 1000
#define	SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_HOLD_MASTER 0xE3
	chip command definition
#define	SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_HOLD_MASTER 0xE5
#define	SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_NO_HOLD_MASTER 0xF3
#define	SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_NO_HOLD_MASTER 0xF5
#define	SHT2X_COMMAND_WRITE_REG 0xE6
#define	SHT2X_COMMAND_READ_REG 0xE7
#define	SHT2X_COMMAND_SOFT_RESET 0xFE
#define	SHT2X_COMMAND_GET_SN1 0xFA0FU
#define	SHT2X_COMMAND_GET_SN2 0xFCC9U
#define	SHT2X_ADDRESS 0x80
	chip address definition

Functions
uint8_t	sht2x_init (sht2x_handle_t *handle)
	initialize the chip
uint8_t	sht2x_deinit (sht2x_handle_t *handle)
	close the chip
uint8_t	sht2x_soft_reset (sht2x_handle_t *handle)
	soft reset the chip
uint8_t	sht2x_set_resolution (sht2x_handle_t *handle, sht2x_resolution_t resolution)
	set resolution
uint8_t	sht2x_get_resolution (sht2x_handle_t handle, sht2x_resolution_t resolution)
	get resolution
uint8_t	sht2x_set_heater (sht2x_handle_t *handle, sht2x_bool_t enable)
	enable or disable heater
uint8_t	sht2x_get_heater (sht2x_handle_t handle, sht2x_bool_t enable)
	get heater status
uint8_t	sht2x_set_disable_otp_reload (sht2x_handle_t *handle, sht2x_bool_t enable)
	enable or disable disable otp reload
uint8_t	sht2x_get_disable_otp_reload (sht2x_handle_t handle, sht2x_bool_t enable)
	get disable otp reload status
uint8_t	sht2x_get_status (sht2x_handle_t handle, sht2x_status_t status)
	get status
uint8_t	sht2x_set_mode (sht2x_handle_t *handle, sht2x_mode_t mode)
	set chip mode
uint8_t	sht2x_get_mode (sht2x_handle_t handle, sht2x_mode_t mode)
	get chip mode
uint8_t	sht2x_read (sht2x_handle_t handle, uint16_t temperature_raw, float temperature_s, uint16_t humidity_raw, float *humidity_s)
	read data
uint8_t	sht2x_get_serial_number (sht2x_handle_t *handle, uint8_t sn[8])
	get serial number
uint8_t	sht2x_set_reg (sht2x_handle_t handle, uint8_t reg, uint8_t data, uint16_t len)
	set the chip register
uint8_t	sht2x_get_reg (sht2x_handle_t handle, uint8_t reg, uint8_t data, uint16_t len)
	get the chip register
uint8_t	sht2x_get_reg16 (sht2x_handle_t handle, uint16_t reg, uint8_t data, uint16_t len)
	get the chip register16
uint8_t	sht2x_set_cmd (sht2x_handle_t handle, uint8_t data, uint16_t len)
	set command
uint8_t	sht2x_get_cmd (sht2x_handle_t handle, uint8_t data, uint16_t len)
	get command
uint8_t	sht2x_info (sht2x_info_t *info)
	get chip's information

Detailed Description

driver sht2x source file

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Version: 1.0.0

Author: Shifeng Li

Date: 2025-04-30

history

Date	Version	Author	Description
2025/04/30	1.0	Shifeng Li	first upload

Definition in file driver_sht2x.c.

Macro Definition Documentation

◆ CHIP_NAME

#define CHIP_NAME "Sensirion SHT2X"

chip information definition

chip name

Definition at line 42 of file driver_sht2x.c.

◆ DRIVER_VERSION

#define DRIVER_VERSION 1000

driver version

Definition at line 49 of file driver_sht2x.c.

◆ MANUFACTURER_NAME

#define MANUFACTURER_NAME "Sensirion"

manufacturer name

Definition at line 43 of file driver_sht2x.c.

◆ MAX_CURRENT

#define MAX_CURRENT 0.33f

chip max current

Definition at line 46 of file driver_sht2x.c.

◆ SHT2X_ADDRESS

#define SHT2X_ADDRESS 0x80

chip address definition

iic device address

Definition at line 67 of file driver_sht2x.c.

◆ SHT2X_COMMAND_GET_SN1

#define SHT2X_COMMAND_GET_SN1 0xFA0FU

read from memory location 1 command

Definition at line 61 of file driver_sht2x.c.

◆ SHT2X_COMMAND_GET_SN2

#define SHT2X_COMMAND_GET_SN2 0xFCC9U

read from memory location 2 command

Definition at line 62 of file driver_sht2x.c.

◆ SHT2X_COMMAND_READ_REG

#define SHT2X_COMMAND_READ_REG 0xE7

read user register command

Definition at line 59 of file driver_sht2x.c.

◆ SHT2X_COMMAND_SOFT_RESET

#define SHT2X_COMMAND_SOFT_RESET 0xFE

soft reset command

Definition at line 60 of file driver_sht2x.c.

◆ SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_HOLD_MASTER

#define SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_HOLD_MASTER 0xE5

trigger rh measurement hold master command

Definition at line 55 of file driver_sht2x.c.

◆ SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_NO_HOLD_MASTER

#define SHT2X_COMMAND_TRIGGER_RH_MEASUREMENT_NO_HOLD_MASTER 0xF5

trigger rh measurement no hold master command

Definition at line 57 of file driver_sht2x.c.

◆ SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_HOLD_MASTER

#define SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_HOLD_MASTER 0xE3

chip command definition

trigger t measurement hold master command

Definition at line 54 of file driver_sht2x.c.

◆ SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_NO_HOLD_MASTER

#define SHT2X_COMMAND_TRIGGER_T_MEASUREMENT_NO_HOLD_MASTER 0xF3

trigger t measurement no hold master command

Definition at line 56 of file driver_sht2x.c.

◆ SHT2X_COMMAND_WRITE_REG

#define SHT2X_COMMAND_WRITE_REG 0xE6

write user register command

Definition at line 58 of file driver_sht2x.c.

◆ SUPPLY_VOLTAGE_MAX

#define SUPPLY_VOLTAGE_MAX 3.6f

chip max supply voltage

Definition at line 45 of file driver_sht2x.c.

◆ SUPPLY_VOLTAGE_MIN

#define SUPPLY_VOLTAGE_MIN 2.1f

chip min supply voltage

Definition at line 44 of file driver_sht2x.c.

◆ TEMPERATURE_MAX

#define TEMPERATURE_MAX 125.0f

chip max operating temperature

Definition at line 48 of file driver_sht2x.c.

◆ TEMPERATURE_MIN

#define TEMPERATURE_MIN -50.0f

chip min operating temperature

Definition at line 47 of file driver_sht2x.c.

Macros

Functions