Caution

This is a custom firmware that could break your keyboard.

🛑 Use at your own risk! 🛑

Features

VIA Enabled

Easily remap keys, configure layers, and customize RGB lighting using the Via Configurator.

CapsWord

Type a word in all caps by pressing Left Shift + Right Shift.

Sentence Case

Toggle sentence case mode with Fn + Caps Lock. Automatically capitalizes the first letter of each sentence.

Autocorrect

Toggle Autocorrect with Fn + F3.

• Corrects common typos using a dictionary created by @gargum.

Game Mode

Activate Game Mode with Fn + Right Shift + G. Features include:

• SOCD Filtering: Prioritizes the latest input between two conflicting keys for faster directional changes.
• Custom RGB Matrix: Highlights WASD keys with adjustable RGB modes.
• Windows Key Lock: Blocks the LGUI (Windows) key to prevent interruptions.

Audio Visualizer Mode (Layer 3)

Activate with Fn + Right Shift + Volume Knob.

• Real-time, reactive audio visualization powered by Lazersync.

Type Alchemy

Toggle Type Alchemy with Fn + F1.

• Automatically convert words into symbols using a customizable map. For example, typing "infinity" converts to ∞.
• Switch between Unicode modes for Windows (WinCompose required), Linux, and macOS with Fn + F2.
• Use the public API in type_alchemy.h to expand functionality.

Light Indicators

Visual indicators show the currently active layer and available function keys.

Knob Controls

• Layer 0: Volume control
• Layer 1: Screen brightness
• Layer 2: Media fast-forward/rewind

DFU Mode

Enter bootloader mode for flashing firmware by pressing Fn + Shift + Esc.

Clear EEPROM

Clear the keyboard's EEPROM memory with Fn + Space.

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RGB Controls

• Brightness: Adjust with Fn + Up/Down Arrows.
• Effect Speed: Adjust with Fn + Left/Right Arrows.
• RGB Mode: Cycle modes with Fn + \ (Backslash).
• Further Customization: Use the Via Configurator.

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Getting Started

Prerequisites

To Flash Firmware

1. Install QMK Toolbox to flash firmware onto your keyboard.

To Compile Firmware

1. Set up your QMK environment to compile and modify the firmware source code.

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Flashing the Firmware

1. Download the Firmware:

   • Clone this repository or download the .hex file from the Compiled folder.

2. Flash the Firmware:

   • Enter DFU mode by pressing Fn + Shift + Esc.
   • Alternatively, press the ESC key while plugging in the USB cable, or use the reset button located under the space bar.
   • Use QMK Toolbox to flash the lazercore.hex file to your keyboard.

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Compiling the Firmware

1. Copy the RK75 folder to the keyboards folder in your QMK firmware environment.
2. Run the following command to compile the firmware:
   qmk compile -kb RK75 -km lazercore (or) make RK75:lazercore -j

Contributing

Contributions, bug reports, and feature requests are welcome!

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Acknowledgments

• Special thanks to @sdk66, @snakkarike, @irfanjmdn, and @iamdanielv for their contributions to RK keyboards, providing a solid foundation for this project.
• Grateful to the QMK Community for their extensive documentation and support.

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