tsl2561: Driver for light-to-digital converter TSL2561

Defines

TSL2561_I2C_ADDR_GND

TSL2561_I2C_ADDR_FLOAT

Default I2C address.

TSL2561_I2C_ADDR_VCC

Enums

enum tsl2561_integration_time_t

Integration time.

Values:

enumerator TSL2561_INTEGRATION_13MS

13ms

enumerator TSL2561_INTEGRATION_101MS

101ms

enumerator TSL2561_INTEGRATION_402MS

402ms, default

enum tsl2561_gain_t

Gain.

Values:

enumerator TSL2561_GAIN_1X

Default.

enumerator TSL2561_GAIN_16X

enum tsl2561_package_t

Values:

enumerator TSL2561_PACKAGE_CS

enumerator TSL2561_PACKAGE_T_FN_CL

Functions

esp_err_t tsl2561_init_desc(tsl2561_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio)

Initialize device descriptor.

Parameters:

• dev – Device descriptor

• addr – I2C device address, TSL2561_I2C_ADDR_... const

• port – I2C port

• sda_gpio – SDA GPIO pin

• scl_gpio – SCL GPIO pin

Returns:

ESP_OK on success

esp_err_t tsl2561_free_desc(tsl2561_t *dev)

Free device descriptor.

Parameters:

dev – Device descriptor

Returns:

ESP_OK on success

esp_err_t tsl2561_init(tsl2561_t *dev)

Initialize device.

Parameters:

dev – Device descriptor

Returns:

ESP_OK on success

esp_err_t tsl2561_set_integration_time(tsl2561_t *dev, tsl2561_integration_time_t integration_time)

Set device integration time.

Parameters:

• dev – Device descriptor

• integration_time – Integration time

Returns:

ESP_OK on success

esp_err_t tsl2561_set_gain(tsl2561_t *dev, tsl2561_gain_t gain)

Set device gain.

Parameters:

• dev – Device descriptor

• gain – Gain

Returns:

ESP_OK on success

esp_err_t tsl2561_read_lux(tsl2561_t *dev, uint32_t *lux)

Read light intensity from device.

Parameters:

• dev – Device descriptor

• lux – [out] Light intensity, lux

Returns:

ESP_OK on success

struct tsl2561_t

#include <tsl2561.h>

Device descriptor.

Public Members

i2c_dev_t i2c_dev

tsl2561_integration_time_t integration_time

tsl2561_gain_t gain

tsl2561_package_t package_type