LED（指示灯） (lv_led)

Overview（概述）

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The LEDs are rectangle-like (or circle) object whose brightness can be adjusted. With lower brightness the colors of the LED become darker.

LED（指示灯）是矩形（或圆形）对象。它的亮度可以调节。亮度降低时，LED的颜色会变暗。

Parts and Styles（部分和样式）

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LV_LED_PART_MAIN uses all the typical background style properties.

LV_LED_PART_MAIN 它使用所有典型的背景样式属性。

Usage（用法）

Color（颜色）

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

可以使用函数 lv_led_set_color(led, lv_color_hex(0xff0080)) 设置 LED 的颜色。这将用作背景颜色、边框颜色和阴影颜色。

Brightness（亮度）

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You can set their brightness with lv_led_set_bright(led, bright). The brightness should be between 0 (darkest) and 255 (lightest).

可以使用函数 lv_led_set_bright(led, bright) 设置它们的亮度。亮度范围：0（最暗）- 255（最亮）。

Toggle（切换）

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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.