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49 lines
1.1 KiB
Markdown
49 lines
1.1 KiB
Markdown
```eval_rst
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.. include:: /header.rst
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:github_url: |github_link_base|/widgets/led.md
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```
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# LED (lv_led)
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## Overview
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The LEDs are rectangle-like (or circle) object. It's brightness can be adjusted. With lower brightness the the colors of the LED become darker.
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## Parts and Styles
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The LEDs have only one main part, called `LV_LED_PART_MAIN` and it uses all the typical background style properties.
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## Usage
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### Brightness
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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).
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### Toggle
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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.
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## Events
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Only the [Generic events](../overview/event.html#generic-events) are sent by the object type.
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Learn more about [Events](/overview/event).
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## Keys
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No *Keys* are processed by the object type.
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Learn more about [Keys](/overview/indev).
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## Example
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```eval_rst
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.. include:: /lv_examples/src/lv_ex_widgets/lv_ex_led/index.rst
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```
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## API
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```eval_rst
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.. doxygenfile:: lv_led.h
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:project: lvgl
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```
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