rkcu 1.0.0

Royal Kludge Config Utility - Manage profiles and per-key RGB lighting

RKCU - Royal Kludge Config Utility

Python3 based command line utility to manage and modify profiles on Royal Kludge keyboards with per-key RGB support.

Features

• Per-Key RGB Lighting: Set individual colors for each key
• JSON Configuration: Load complex lighting setups from files
• Windows Compatible: Updated for Windows HID interface detection
• RK100 Support: Enhanced for newer Royal Kludge models
• Rangoli: Based on reverse engineering from the rangoli project

Supported Keyboards

• Royal Kludge RK100 (VID: 0x258a, PID: 0x00e0)
• Royal Kludge RK61 (original support)
• Other RK keyboards with compatible HID interfaces

Dependencies

hidapi

Quick Start - Per-Key RGB

List available keys:

python rkcu.py --list-keys

Set individual key colors:

# Set Q key to red, A key to green, Space to blue
python rkcu.py --set-key 15:ff0000 --set-key 29:00ff00 --set-key 56:0000ff

Load colors from JSON file:

python rkcu.py --set-keys-json sample_per_key_config.json

Standard Usage

python rkcu.py <arguments>

Arguments :

--speed, --sp [1-5]
# speed of led animation.

--brightness, -br [0-5]
# brightness of led animation

--sleep, -sl [1-5]
# sleep duration for the keyboard led
 - 1: 05 Minutes
 - 2: 10 Minutes
 - 3: 20 Minutes
 - 4: 30 Minutes
 - 5: Never Sleep

--rainbow, -rb
# Set LED color mode to Rainbow

--red, -r 0-255
# Red value of Color

--green, -g 0-255
# Green value of Color

--blue, -b 0-255
# Blue value of Color

--animation, -an "animation_name"
# List of availaible animations:
 - neon_stream
 - ripples_shining
 - sine_wave
 - rainbow_routlette
 - stars_twinkle
 - layer_upon_layer
 - rich_and_honored
 - marquee_effect
 - rotating_storm
 - serpentine_horse
 - retro_snake
 - diagonal_transformer
 - ambilight
 - streamer
 - steady
 - breathing
 - neon
 - shadow_disappear
 - flash_away

Per-Key RGB Arguments

--set-key KEY_INDEX:RRGGBB
# Set color for a specific key (can be used multiple times)
# Example: --set-key 15:ff0000 (sets Q key to red)

--set-keys-json FILE_PATH
# Load multiple key colors from JSON file

--list-keys
# List all available key indices and names

--clear-custom
# Clear all custom per-key colors

Example :

# Standard usage
python rkcu.py --speed 3 --brightness 5 --sleep 5 -r 255 -g 255 -b 255 -an "ripples_shining"
python rkcu.py -sp 5 -an "rotating_storm" -rb

# Per-key RGB examples
python rkcu.py --set-key 15:ff0000 --set-key 29:00ff00  # Red Q, Green A
python rkcu.py --set-keys-json rainbow_config.json      # Load from file
python rkcu.py --set-key 15:ff0000 --brightness 200     # Custom key with brightness

Notes

The --rainbow argument will overrule the --red, --green, --blue parameters.

By default the script would require superuser access to run. In order to run this without root, you can plug a udev rule by performing the following steps : Step 1: Find your vendor id and product id. Here it is 258a and 004a respectively, and would most likely be same for you if you are having the same keyboard.

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0c45:671e Microdia Integrated_Webcam_HD
Bus 001 Device 002: ID 258a:004a SINO WEALTH RK Bluetooth Keyboard
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Step 2: add a rules file to /etc/udev/rules.d file: 60-rk.rules

SUBSYSTEMS=="usb|hidraw", ATTRS{idVendor}=="258a", ATTRS{idProduct}=="004a", TAG+="uaccess"

replace 258a with your vendor id and 004a with your product id, in case it is different. Step 3: Finally, reload your udev rules by running the following command :

# udevadm control --reload-rules && udevadm trigger

What's working?

Currently the script allows setting and configuring of inbuilt color profiles on the keyboard. Custom customisation such as custom LED colors and macros are still not present but will (hopefully) be soon supported.

Credits

Big credits to this issue thread on the OpenRGB Gitlab Repo that served great reference.