qmk_firmware/keyboards/crkbd/readme.md

# Corne Keyboard (CRKBD)

Also known (incorrectly) as the `HeliDox`. 

![Crkbd](https://user-images.githubusercontent.com/736191/40575636-6fba63a4-6123-11e8-9ca0-3f990f1f9f4c.jpg)

![Crkbd](https://user-images.githubusercontent.com/736191/40887871-0eead5dc-678a-11e8-9518-e3ad9e5d2bac.png)

A split keyboard with 3x6 vertically staggered keys and 3 thumb keys.

Keyboard Maintainer: [foostan](https://github.com/foostan/) [@foostan](https://twitter.com/foostan)  
Hardware Supported: Crkbd PCB, Pro Micro  
Hardware Availability: [PCB & Case Data](https://github.com/foostan/crkbd)

Make example for this keyboard (after setting up your build environment):

```sh
make crkbd:default
```

See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

## RGB Matrix 
The Corne Keyboard also supports using the RGB Matrix feature, in place of RGB Light.  This provids a better experience when using the keyboard, as it supports a number of per key effects properly.  If you're not using the in switch LEDs, then you may want to pass on doing this. 

In your keymap's `rules.mk` file, add the following: 

```make
RGBLIGHT_ENABLE = no
RGB_MATRIX_ENABLE = WS2812
```

And in your `config.h` file, add the following:

```c

#ifdef RGB_MATRIX_ENABLE
#   define RGB_MATRIX_KEYPRESSES // reacts to keypresses
// #   define RGB_MATRIX_KEYRELEASES // reacts to keyreleases (instead of keypresses)
// #   define RGB_DISABLE_AFTER_TIMEOUT 0 // number of ticks to wait until disabling effects
#   define RGB_DISABLE_WHEN_USB_SUSPENDED true // turn off effects when suspended
#   define RGB_MATRIX_FRAMEBUFFER_EFFECTS
// #   define RGB_MATRIX_LED_PROCESS_LIMIT (DRIVER_LED_TOTAL + 4) / 5 // limits the number of LEDs to process in an animation per task run (increases keyboard responsiveness)
// #   define RGB_MATRIX_LED_FLUSH_LIMIT 16 // limits in milliseconds how frequently an animation will update the LEDs. 16 (16ms) is equivalent to limiting to 60fps (increases keyboard responsiveness)
#    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 150 // limits maximum brightness of LEDs to 150 out of 255. Higher may cause the controller to crash. 
#    define RGB_MATRIX_HUE_STEP 8
#    define RGB_MATRIX_SAT_STEP 8
#    define RGB_MATRIX_VAL_STEP 8
#    define RGB_MATRIX_SPD_STEP 10

/* Disable the animations you don't want/need.  You will need to disable a good number of these    *
 * because they take up a lot of space.  Disable until you can successfully compile your firmware. */
// #   define DISABLE_RGB_MATRIX_ALPHAS_MODS
// #   define DISABLE_RGB_MATRIX_GRADIENT_UP_DOWN
// #   define DISABLE_RGB_MATRIX_BREATHING
// #   define DISABLE_RGB_MATRIX_CYCLE_ALL
// #   define DISABLE_RGB_MATRIX_CYCLE_LEFT_RIGHT
// #   define DISABLE_RGB_MATRIX_CYCLE_UP_DOWN
// #   define DISABLE_RGB_MATRIX_CYCLE_OUT_IN
// #   define DISABLE_RGB_MATRIX_CYCLE_OUT_IN_DUAL
// #   define DISABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON
// #   define DISABLE_RGB_MATRIX_DUAL_BEACON
// #   define DISABLE_RGB_MATRIX_RAINBOW_BEACON
// #   define DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS
// #   define DISABLE_RGB_MATRIX_RAINDROPS
// #   define DISABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
// #   define DISABLE_RGB_MATRIX_TYPING_HEATMAP
// #   define DISABLE_RGB_MATRIX_DIGITAL_RAIN
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_SIMPLE
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
// #   define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
// #   define DISABLE_RGB_MATRIX_SPLASH
// #   define DISABLE_RGB_MATRIX_MULTISPLASH
// #   define DISABLE_RGB_MATRIX_SOLID_SPLASH
// #   define DISABLE_RGB_MATRIX_SOLID_MULTISPLASH
#endif
```

After this is done, you should be able to use the normal RGB keycodes, but you'll see the RGB Matrix effects in use, giving a much better experience.