mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-11-24 01:17:07 +06:00
81 lines
2.5 KiB
Markdown
81 lines
2.5 KiB
Markdown
# APA102 Driver {#apa102-driver}
|
|
|
|
This driver provides support for APA102 addressable RGB LEDs. They are similar to the [WS2812](ws2812) LEDs, but have increased data and refresh rates.
|
|
|
|
## Usage {#usage}
|
|
|
|
In most cases, the APA102 driver code is automatically included if you are using either the [RGBLight](../features/rgblight) or [RGB Matrix](../features/rgb_matrix) 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 {#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 {#api}
|
|
|
|
### `void apa102_init(void)` {#api-apa102-init}
|
|
|
|
Initialize the LED driver. This function should be called first.
|
|
|
|
---
|
|
|
|
### `void apa102_set_color(uint16_t index, uint8_t red, uint8_t green, uint8_t blue)` {#api-apa102-set-color}
|
|
|
|
Set the color of a single LED. This function does not immediately update the LEDs; call `apa102_flush()` after you are finished.
|
|
|
|
#### Arguments {#api-apa102-set-color-arguments}
|
|
|
|
- `uint16_t index`
|
|
The LED index in the APA102 chain.
|
|
- `uint8_t red`
|
|
The red value to set.
|
|
- `uint8_t green`
|
|
The green value to set.
|
|
- `uint8_t blue`
|
|
The blue value to set.
|
|
|
|
---
|
|
|
|
### `void apa102_set_color_all(uint8_t red, uint8_t green, uint8_t blue)` {#api-apa102-set-color-all}
|
|
|
|
Set the color of all LEDs.
|
|
|
|
#### Arguments {#api-apa102-set-color-all-arguments}
|
|
|
|
- `uint8_t red`
|
|
The red value to set.
|
|
- `uint8_t green`
|
|
The green value to set.
|
|
- `uint8_t blue`
|
|
The blue value to set.
|
|
|
|
---
|
|
|
|
### `void apa102_flush(void)` {#api-apa102-flush}
|
|
|
|
Flush the PWM values to the LED chain.
|
|
|
|
---
|
|
|
|
### `void apa102_set_brightness(uint8_t brightness)` {#api-apa102-set-brightness}
|
|
|
|
Set the global brightness.
|
|
|
|
#### Arguments {#api-apa102-set-brightness-arguments}
|
|
|
|
- `uint8_t brightness`
|
|
The brightness level to set, from 0 to 31.
|