lv_led.h

Defines

LV_LED_BRIGHT_MIN

Brightness when the LED if OFF

LV_LED_BRIGHT_MAX

Brightness when the LED if ON

Functions

lv_obj_t *lv_led_create(lv_obj_t *parent)

Create a led object

参数:

parent -- pointer to an object, it will be the parent of the new led

返回:

pointer to the created led

void lv_led_set_color(lv_obj_t *led, lv_color_t color)

Set the color of the LED

参数:

• led -- pointer to a LED object

• color -- the color of the LED

void lv_led_set_brightness(lv_obj_t *led, uint8_t bright)

Set the brightness of a LED object

参数:

• led -- pointer to a LED object

• bright -- LV_LED_BRIGHT_MIN (max. dark) ... LV_LED_BRIGHT_MAX (max. light)

void lv_led_on(lv_obj_t *led)

Light on a LED

参数:

led -- pointer to a LED object

void lv_led_off(lv_obj_t *led)

Light off a LED

参数:

led -- pointer to a LED object

void lv_led_toggle(lv_obj_t *led)

Toggle the state of a LED

参数:

led -- pointer to a LED object

uint8_t lv_led_get_brightness(const lv_obj_t *obj)

Get the brightness of a LED object

参数:

obj -- pointer to LED object

返回:

bright 0 (max. dark) ... 255 (max. light)

Variables

const lv_obj_class_t lv_led_class

struct lv_led_t

Public Members

lv_obj_t obj

lv_color_t color

uint8_t bright

Current brightness of the LED (0..255)