tsl4531: Driver for digital ambient light sensor TSL4531

Defines

TSL4531_I2C_ADDR

Enums

enum tsl4531_integration_time_t

Integration time.

Values:

enumerator TSL4531_INTEGRATION_400MS

Default.

enumerator TSL4531_INTEGRATION_200MS

enumerator TSL4531_INTEGRATION_100MS

enum tsl4531_part_id_t

Part IDs.

Values:

enumerator TSL4531_PART_TSL45317

enumerator TSL4531_PART_TSL45313

enumerator TSL4531_PART_TSL45315

enumerator TSL4531_PART_TSL45311

Functions

esp_err_t tsl4531_init_desc(tsl4531_t *dev, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio)

Initialize device descriptor.

Parameters:

• dev – Device descriptor

• port – I2C port

• sda_gpio – SDA GPIO pin

• scl_gpio – SCL GPIO pin

Returns:

ESP_OK on success

esp_err_t tsl4531_free_desc(tsl4531_t *dev)

Free device descriptor.

Parameters:

dev – Device descriptor

Returns:

ESP_OK on success

esp_err_t tsl4531_init(tsl4531_t *dev)

Initialize device.

Parameters:

dev – Device descriptor

Returns:

ESP_OK on success

esp_err_t tsl4531_config(tsl4531_t *dev, tsl4531_integration_time_t integration_time, bool skip_power_save)

Configure device.

Parameters:

• dev – Device descriptor

• integration_time – Integration time

• skip_power_save – PowerSave Mode. When true, the power save states are skipped following a light integration cycle for shorter sampling rates

Returns:

ESP_OK on success

esp_err_t tsl4531_read_lux(tsl4531_t *dev, uint16_t *lux)

Read conversion results in lux.

Parameters:

• dev – Device descriptor

• lux – [out] Conversion result in lux

Returns:

ESP_OK on success

struct tsl4531_t

#include <tsl4531.h>

Device descriptor.

Public Members

i2c_dev_t i2c_dev

tsl4531_integration_time_t integration_time

bool skip_power_save

tsl4531_part_id_t part_id