mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-28 12:09:16 +06:00
50 lines
1.8 KiB
Markdown
50 lines
1.8 KiB
Markdown
|
# APA102 Driver :id=apa102-driver
|
||
|
|
|
||
|
|
This driver provides support for APA102 addressable RGB LEDs. They are similar to the [WS2812](ws2812_driver.md) LEDs, but have increased data and refresh rates.
|
||
|
|
|
||
|
|
## Usage :id=usage
|
||
|
|
|
||
|
|
In most cases, the APA102 driver code is automatically included if you are using either the [RGBLight](feature_rgblight.md) or [RGB Matrix](feature_rgb_matrix.md) feature with the `apa102` driver set, and you would use those APIs instead.
|
||
|
|
|
||
|
|
However, if you need to use the driver standalone, add the following to your `rules.mk`:
|
||
|
|
|
||
|
|
```make
|
||
|
|
APA102_DRIVER_REQUIRED = yes
|
||
|
|
```
|
||
|
|
|
||
|
|
You can then call the APA102 API by including `apa102.h` in your code.
|
||
|
|
|
||
|
|
## Basic Configuration :id=basic-configuration
|
||
|
|
|
||
|
|
Add the following to your `config.h`:
|
||
|
|
|
||
|
|
|Define |Default |Description |
|
||
|
|
|---------------------------|-------------|------------------------------------------------------------------|
|
||
|
|
|`APA102_DI_PIN` |*Not defined*|The GPIO pin connected to the DI pin of the first LED in the chain|
|
||
|
|
|`APA102_CI_PIN` |*Not defined*|The GPIO pin connected to the CI pin of the first LED in the chain|
|
||
|
|
|`APA102_DEFAULT_BRIGHTNESS`|`31` |The default global brightness level of the LEDs, from 0 to 31 |
|
||
|
|
|
||
|
|
## API :id=api
|
||
|
|
|
||
|
|
### `void apa102_setleds(rgb_led_t *start_led, uint16_t num_leds)`
|
||
|
|
|
||
|
|
Send RGB data to the APA102 LED chain.
|
||
|
|
|
||
|
|
#### Arguments :id=api-apa102-setleds-arguments
|
||
|
|
|
||
|
|
- `rgb_led_t *start_led`
|
||
|
|
A pointer to the LED array.
|
||
|
|
- `uint16_t num_leds`
|
||
|
|
The length of the LED array.
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
### `void apa102_set_brightness(uint8_t brightness)`
|
||
|
|
|
||
|
|
Set the global brightness.
|
||
|
|
|
||
|
|
#### Arguments :id=api-apa102-set-brightness-arguments
|
||
|
|
|
||
|
|
- `uint8_t brightness`
|
||
|
|
The brightness level to set, from 0 to 31.
|