Qmk keycodes, qmk. Kinetic: Holding movement keys accelerates the cursor with its speed following a quadratic curve until it reaches its maximum speed. To use the keycodes, assign them to your keymap as you would any other keycode. Open-source keyboard firmware for Atmel AVR and Arm USB families - qmk/qmk_firmware QMK Keycodes - QMK Keycodes QMK Keycode Cheatsheet https://docs. fm/keycodes May 10, 2025 · Advanced Keycodes Relevant source files Advanced keycodes in QMK firmware enable sophisticated keyboard customization beyond basic keystrokes. Caveats Currently, the kc argument of MT() is limited to the Basic Keycode set, meaning you can't use keycodes like LCTL(), KC_TILD, or anything greater than 0xFF. See the list of basic keycodes and their aliases, descriptions, and compatibility across Windows, macOS, and Linux. However, this support is not actually achieved within the keyboard itself - instead, it sends numerical codes, which the operating system maps to the appropriate characters depending on the user's configured keyboard layout. If yes, we send the string "QMK is the best thing ever!" to the computer via the SEND_STRING macro (this is a C preprocessor macro, not to be confused with QMK macros). Learn how to define keys in QMK with keycodes, symbols that correspond to key functions. h. . Find the list of keycodes for letters, numbers, symbols, modifiers, commands, and more. Constant: Holding movement keys moves the cursor at constant speeds Language-specific Keycodes Keyboards are able to support a wide range of languages. These are keycodes such as KC_A, KC_1, and KC_LCTL, which are basic keys defined in the USB HID specification. What Are the Default Keycodes? There are 3 standard keyboard layouts in use Configuring mouse keys Mouse keys supports three different modes to move the cursor: Accelerated (default): Holding movement keys accelerates the cursor until it reaches its maximum speed. Learn how to use keycodes in QMK Firmware, a keyboard firmware framework. Then we use the process_record_user function, which is called whenever a key is pressed or released, to check if our custom keycode has been activated. These link to more extensive documentation when available. This is because QMK uses 16-bit keycodes, of which 3 bits are used for the function identifier, 1 bit for QMK has reserved 0x0000 through 0x00FF for standard keycodes. What Keycodes Can I Use? See Keycodes for an index of keycodes available to you. On this page we have documented keycodes between 0x00FF and 0xFFFF which are used to implement advanced quantum features. Keycodes are actually defined in quantum/keycode. See the list of basic keycodes and their aliases. Documentation for QMK Firmware 1. This is because QMK uses 16-bit keycodes, of which 4 bits are used for the function identifier and 4 bits for the layer, leaving only 8 bits for the keycode. If you haven't you should read Keymap Overview first. Keymap FAQ This page covers questions people often have about keymaps. For a similar reason, the layer argument of LM() is also limited to layers 0-15 and the mod argument must fit within 5 bits. Learn how to use keycodes in QMK, a keyboard firmware framework. This page documents special keycodes like modifier combinations, layer operations, dual-function keys, and other advanced behaviors that expand your keyboard's capabilities. Documentation for QMK Firmware Magic Keycodes Magic Keycodes are prefixed with MAGIC_, and allow you to access the functionality of the deprecated Bootmagic feature after your keyboard has initialized. Keycodes are used to define keyboard layouts, macros, and functions. More information on the Hyper key can be found on this blog post by Brett Terpstra.


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