The Turbo plugin provides an extra key one can place on their keymap. While the key is pressed or toggled, pressing other keys will generate quick repeated inputs independent of the OS key repetition mechanics.

Using the plugin

To use the plugin, simply include the header and enable the plugin and place Key_Turbo somewhere on your keymap. You may add additionally configure specific behaviors of the plugin as shown:

#include <Kaleidoscope.h>
#include <Kaleidoscope-Turbo.h>
#include <Kaleidoscope-LEDControl.h>

// somewhere in the keymap...


void setup() {

    Turbo.activeColor(CRGB(0x64, 0x96, 0xed));

Plugin properties

The Turbo object has the following user-configurable properties:


This property adjusts the timing between simulated keypresses. If you set this too low, some programs might not like it. The default repeat rate for X11 is 25.

Defaults to 10


This property adjusts the timing between the on/off states of the key LED.

Defaults to 69


This method makes the Turbo functionality sticky, so it remains in effect not only while it is held, but after it is released too, until it is toggled off with another tap. Without arguments, the method enables the sticky functionality. Passing a boolean argument sets stickiness to the given value.

Defaults to false.


This property indicates whether the key should flash when enabled or remain a solid color.

Defaults to true.


This property indicates the color the key should become when enabled.

Defaults to CRGB(160, 0, 0) (same as solidRed in default firmware).


Further reading

Starting from the example is the recommended way of getting started with the plugin.