driver aht20 source file More...

#include "driver_aht20.h"

Include dependency graph for driver_aht20.c:

Macros
#define	CHIP_NAME "ASAIR AHT20"
	chip information definition
#define	MANUFACTURER_NAME "ASAIR"
#define	SUPPLY_VOLTAGE_MIN 2.2f
#define	SUPPLY_VOLTAGE_MAX 5.5f
#define	MAX_CURRENT 0.98f
#define	TEMPERATURE_MIN -40.0f
#define	TEMPERATURE_MAX 85.0f
#define	DRIVER_VERSION 1000
#define	AHT20_ADDRESS 0x70
	chip address definition

Functions
uint8_t	aht20_init (aht20_handle_t *handle)
	initialize the chip
uint8_t	aht20_deinit (aht20_handle_t *handle)
	close the chip
uint8_t	aht20_read_temperature_humidity (aht20_handle_t handle, uint32_t temperature_raw, float temperature_s, uint32_t humidity_raw, uint8_t *humidity_s)
	read the temperature and humidity data
uint8_t	aht20_read_temperature (aht20_handle_t handle, uint32_t temperature_raw, float *temperature_s)
	read the temperature
uint8_t	aht20_read_humidity (aht20_handle_t handle, uint32_t humidity_raw, uint8_t *humidity_s)
	read the humidity data
uint8_t	aht20_set_reg (aht20_handle_t handle, uint8_t buf, uint16_t len)
	set the chip register
uint8_t	aht20_get_reg (aht20_handle_t handle, uint8_t buf, uint16_t len)
	get the chip register
uint8_t	aht20_info (aht20_info_t *info)
	get chip's information

Detailed Description

driver aht20 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: 2022-10-31

history

Date	Version	Author	Description
2022/10/31	1.0	Shifeng Li	first upload

Definition in file driver_aht20.c.

Macro Definition Documentation

◆ AHT20_ADDRESS

#define AHT20_ADDRESS 0x70

chip address definition

iic device address

Definition at line 54 of file driver_aht20.c.

◆ CHIP_NAME

#define CHIP_NAME "ASAIR AHT20"

chip information definition

chip name

Definition at line 42 of file driver_aht20.c.

◆ DRIVER_VERSION

#define DRIVER_VERSION 1000

driver version

Definition at line 49 of file driver_aht20.c.

◆ MANUFACTURER_NAME

#define MANUFACTURER_NAME "ASAIR"

manufacturer name

Definition at line 43 of file driver_aht20.c.

◆ MAX_CURRENT

#define MAX_CURRENT 0.98f

chip max current

Definition at line 46 of file driver_aht20.c.

◆ SUPPLY_VOLTAGE_MAX

#define SUPPLY_VOLTAGE_MAX 5.5f

chip max supply voltage

Definition at line 45 of file driver_aht20.c.

◆ SUPPLY_VOLTAGE_MIN

#define SUPPLY_VOLTAGE_MIN 2.2f

chip min supply voltage

Definition at line 44 of file driver_aht20.c.

◆ TEMPERATURE_MAX

#define TEMPERATURE_MAX 85.0f

chip max operating temperature

Definition at line 48 of file driver_aht20.c.

◆ TEMPERATURE_MIN

#define TEMPERATURE_MIN -40.0f

chip min operating temperature

Definition at line 47 of file driver_aht20.c.

Macros

Functions