LED Controller Peripheral

This peripheral is applicable to IS31Fl3216 chip that is a light LED controller with an audio modulation mode. It can store data of 8 Frames with internal RAM to play small animations automatically. You can also use it to control a number of LEDs connected to GPIOs. If you want to use the IS31Fl3216, see functions periph_is31fl3216_init(), periph_is31fl3216_set_blink_pattern(), periph_is31fl3216_set_duty(), periph_is31fl3216_set_state().

Application Examples

Implementation of this API is demonstrated in checks/check_msc_leds example.

API Reference

Functions

esp_periph_handle_t periph_is31fl3216_init(periph_is31fl3216_cfg_t *is31fl3216_config)

Initializate the is31fl3216.

Return
  • ESP_OK Success
  • ESP_FAIL Fail
Parameters
  • is31fl3216_config:

esp_err_t periph_is31fl3216_set_blink_pattern(esp_periph_handle_t periph, uint16_t blink_pattern)

Set the current enable channels.

Return
  • ESP_OK Success
  • ESP_FAIL Fail
Parameters
  • periph: The is31fl3216 handle
  • blink_pattern: The bit pattern of enabled channels

esp_err_t periph_is31fl3216_set_duty(esp_periph_handle_t periph, uint8_t index, uint8_t value)

Set the duty of the channel.

Return
  • ESP_OK Success
  • ESP_FAIL Fail
Parameters
  • periph: The is31fl3216 handle
  • index: The channel number
  • value: The value of the channel’s duty to be set

esp_err_t periph_is31fl3216_set_state(esp_periph_handle_t periph, periph_is31fl3216_state_t state)

Set the state of all the channels.

Return
  • ESP_OK Success
  • ESP_FAIL Fail
Parameters
  • periph: The is31fl3216 handle
  • state: The state of all channels

Structures

struct periph_is31fl3216_cfg_t

The configuration of is31fl3216.

Public Members

uint32_t duty[IS31FL3216_CH_NUM]

An array of the is31fl3216’s duty

uint16_t is31fl3216_pattern

Current enable channel

periph_is31fl3216_state_t state

The state of all the channels

Macros

IS31FL3216_CH_NUM

Enumerations

enum periph_is31fl3216_state_t

Values:

IS31FL3216_STATE_OFF
IS31FL3216_STATE_ON
IS31FL3216_STATE_FLASH
IS31FL3216_STATE_BY_AUDIO