LED (lv_led)

LEDs are rectangle-like (or circle) Widgets whose brightness can be adjusted. With lower brightness the color of the LED becomes darker.

Overview

LEDs are rectangle-like (or circle) Widgets whose brightness can be adjusted. With lower brightness the color of the LED becomes darker.

Parts and Styles

• LV_LED_PART_MAIN uses the typical background style properties.

Usage

Color

You can set the color of the LED with lv_led_set_color(led, lv_color_hex(0xff0080)). This will be used as its background color, border color, and shadow color.

Brightness

You can set their brightness with lv_led_set_brightness(led, brightness). The brightness value should be in the range 0 (darkest) to 255 (lightest).

Toggle

Use lv_led_on(led) and lv_led_off(led) to set the brightness to a predefined ON or OFF value. The lv_led_toggle(led) toggles between the ON and OFF state.

You can set custom LED ON and OFF brightness values by defining macros LV_LED_BRIGHT_MAX and LV_LED_BRIGHT_MIN in your project. Their default values are 255 and 80. These too must be in the range [0..255].

Events

No special events are sent by LED Widgets.

Keys

No Keys are processed by LED Widgets.

Example

LED with custom style

API