driver_veml7700.c File Reference

driver veml7700 source file More...

#include "driver_veml7700.h"

Include dependency graph for driver_veml7700.c:

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Macros
#define	CHIP_NAME   "VISHAY VEML7700"
	chip information definition
#define	MANUFACTURER_NAME   "VISHAY"
#define	SUPPLY_VOLTAGE_MIN   2.5f
#define	SUPPLY_VOLTAGE_MAX   3.6f
#define	MAX_CURRENT   0.045f
#define	TEMPERATURE_MIN   -25.0f
#define	TEMPERATURE_MAX   85.0f
#define	DRIVER_VERSION   1000
#define	VEML7700_ADDRESS   0x20
	chip address definition
#define	VEML7700_REG_ALS_CONF_0   0x00
	chip register definition
#define	VEML7700_REG_ALS_WH   0x01
#define	VEML7700_REG_ALS_WL   0x02
#define	VEML7700_REG_POWER_SAVING   0x03
#define	VEML7700_REG_ALS   0x04
#define	VEML7700_REG_WHITE   0x05
#define	VEML7700_REG_ALS_INT   0x06
#define	VEML7700_REG_ID   0x07

Functions
uint8_t	veml7700_set_als_gain (veml7700_handle_t *handle, veml7700_als_gain_t gain)
	set als gain
uint8_t	veml7700_get_als_gain (veml7700_handle_t *handle, veml7700_als_gain_t *gain)
	get als gain
uint8_t	veml7700_set_als_integration_time (veml7700_handle_t *handle, veml7700_als_integration_time_t t)
	set als integration time
uint8_t	veml7700_get_als_integration_time (veml7700_handle_t *handle, veml7700_als_integration_time_t *t)
	get als integration time
uint8_t	veml7700_set_als_persistence (veml7700_handle_t *handle, veml7700_als_persistence_t persistence)
	set als persistence
uint8_t	veml7700_get_als_persistence (veml7700_handle_t *handle, veml7700_als_persistence_t *persistence)
	get als persistence
uint8_t	veml7700_set_als_interrupt (veml7700_handle_t *handle, veml7700_bool_t enable)
	enable or disable als interrupt
uint8_t	veml7700_get_als_interrupt (veml7700_handle_t *handle, veml7700_bool_t *enable)
	get als interrupt status
uint8_t	veml7700_set_als_mode (veml7700_handle_t *handle, veml7700_als_mode_t mode)
	set als mode
uint8_t	veml7700_get_als_mode (veml7700_handle_t *handle, veml7700_als_mode_t *mode)
	get als mode
uint8_t	veml7700_set_als_high_threshold (veml7700_handle_t *handle, uint16_t threshold)
	set als high threshold
uint8_t	veml7700_get_als_high_threshold (veml7700_handle_t *handle, uint16_t *threshold)
	get als high threshold
uint8_t	veml7700_set_als_low_threshold (veml7700_handle_t *handle, uint16_t threshold)
	set als low threshold
uint8_t	veml7700_get_als_low_threshold (veml7700_handle_t *handle, uint16_t *threshold)
	get als low threshold
uint8_t	veml7700_set_power_saving_mode (veml7700_handle_t *handle, veml7700_power_saving_mode_t mode)
	set power saving mode
uint8_t	veml7700_get_power_saving_mode (veml7700_handle_t *handle, veml7700_power_saving_mode_t *mode)
	get power saving mode
uint8_t	veml7700_set_power_saving (veml7700_handle_t *handle, veml7700_bool_t enable)
	enable or disable power saving
uint8_t	veml7700_get_power_saving (veml7700_handle_t *handle, veml7700_bool_t *enable)
	get power saving status
uint8_t	veml7700_get_interrupt_status (veml7700_handle_t *handle, veml7700_bool_t *low_threshold, veml7700_bool_t *high_threshold)
	get interrupt status
uint8_t	veml7700_init (veml7700_handle_t *handle)
	initialize the chip
uint8_t	veml7700_deinit (veml7700_handle_t *handle)
	close the chip
uint8_t	veml7700_set_auto_range (veml7700_handle_t *handle, veml7700_bool_t enable)
	set auto range
uint8_t	veml7700_get_auto_range (veml7700_handle_t *handle, veml7700_bool_t *enable)
	get auto range
uint8_t	veml7700_read_white (veml7700_handle_t *handle, uint16_t *raw)
	read white channel
uint8_t	veml7700_read_als (veml7700_handle_t *handle, uint16_t *raw, double *lux)
	read als channel
uint8_t	veml7700_set_reg (veml7700_handle_t *handle, uint8_t reg, uint16_t data)
	set the chip register
uint8_t	veml7700_get_reg (veml7700_handle_t *handle, uint8_t reg, uint16_t *data)
	get the chip register
uint8_t	veml7700_info (veml7700_info_t *info)
	get chip's information

Detailed Description

driver veml7700 source file

Copyright (c) 2015 - present LibDriver All rights reserved

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

2025-11-30

history

Date	Version	Author	Description
2025/11/30	1.0	Shifeng Li	first upload

Definition in file driver_veml7700.c.

Macro Definition Documentation

CHIP_NAME

#define CHIP_NAME   "VISHAY VEML7700"

chip information definition

chip name

Definition at line 42 of file driver_veml7700.c.

DRIVER_VERSION

#define DRIVER_VERSION   1000

driver version

Definition at line 49 of file driver_veml7700.c.

MANUFACTURER_NAME

#define MANUFACTURER_NAME   "VISHAY"

manufacturer name

Definition at line 43 of file driver_veml7700.c.

MAX_CURRENT

#define MAX_CURRENT   0.045f

chip max current

Definition at line 46 of file driver_veml7700.c.

SUPPLY_VOLTAGE_MAX

#define SUPPLY_VOLTAGE_MAX   3.6f

chip max supply voltage

Definition at line 45 of file driver_veml7700.c.

SUPPLY_VOLTAGE_MIN

#define SUPPLY_VOLTAGE_MIN   2.5f

chip min supply voltage

Definition at line 44 of file driver_veml7700.c.

TEMPERATURE_MAX

#define TEMPERATURE_MAX   85.0f

chip max operating temperature

Definition at line 48 of file driver_veml7700.c.

TEMPERATURE_MIN

#define TEMPERATURE_MIN   -25.0f

chip min operating temperature

Definition at line 47 of file driver_veml7700.c.

VEML7700_ADDRESS

#define VEML7700_ADDRESS   0x20

chip address definition

iic device address

Definition at line 54 of file driver_veml7700.c.

VEML7700_REG_ALS

#define VEML7700_REG_ALS   0x04

als register

Definition at line 63 of file driver_veml7700.c.

VEML7700_REG_ALS_CONF_0

#define VEML7700_REG_ALS_CONF_0   0x00

chip register definition

als gain, integration time, interrupt, and shutdown register

Definition at line 59 of file driver_veml7700.c.

VEML7700_REG_ALS_INT

#define VEML7700_REG_ALS_INT   0x06

als int register

Definition at line 65 of file driver_veml7700.c.

VEML7700_REG_ALS_WH

#define VEML7700_REG_ALS_WH   0x01

als high threshold window setting register

Definition at line 60 of file driver_veml7700.c.

VEML7700_REG_ALS_WL

#define VEML7700_REG_ALS_WL   0x02

als low threshold window setting register

Definition at line 61 of file driver_veml7700.c.

VEML7700_REG_ID

#define VEML7700_REG_ID   0x07

id register

Definition at line 66 of file driver_veml7700.c.

VEML7700_REG_POWER_SAVING

#define VEML7700_REG_POWER_SAVING   0x03

power saving register

Definition at line 62 of file driver_veml7700.c.

VEML7700_REG_WHITE

#define VEML7700_REG_WHITE   0x05

white register

Definition at line 64 of file driver_veml7700.c.