The short version: It is possible to change the number of Via and Vial macros and change the space for them to be essentially unlimited. Unfortunately, there are many different ways of achieving it, depending on the particular keyboard, the …
Overcoming limitations for macros on Keychron keyboards Read more »
This was written as it happened (though not necessarily in the same order) when I was new to ZMK, on day 1 of getting the Keychron B6 Pro. Some pros: Independence of a web service. More permanent configuration of the …
Customising the ZMK-based Keychron B6 Pro keyboard without the Via clone Read more »
The short version: A wireless QMK-based Keychron keyboard can provide the information about the battery state, e.g. “81%”, to the operating system, just like, for example, a wireless computer mouse. Though the operating system may have to be configured for …
The idea is to capture the Via macro execution in function dynamic_keymap_macro_send() (in file quantum/dynamic_keymap.c) and instead feed the information into an existing QMK macro engine that has cancelling macros and repeating macros as features. Introduction It is relatively straightforward …
The basis for cancelling Via macros in progress and for making Via macros repeat Read more »
This is mostly to have a page where the Keychron keyboard model numbers can be very quickly found with a straight text search, no matter the notation, for example, “V6C3” vs. “V6-C3”. Encoding The model number’s second-last position (only K8 …
Product numbers for Keychron keyboards, e.g., V6C3 for V6 with tactile (brown) switches Read more »
The short version: A relatively simple hack enables mouse actions in Via. Seldomly used keycodes, e.g., for F23 and F24, accepted by Via, are converted to the keycodes for left click and right click just before macro execution. This breaks …
The short version: Mouse actions are not supported when recording macros, and they can’t be added after recording by inserting the appropriate keycodes in the JSON source (directly in Via, not in a file). Though there is a solution! Introduction …
The short version: in function rgb_matrix_indicators_kb() in file keymap.c, use function rgb_matrix_set_color(). For example, to set a blue colour on key F7 on a Keychron V5: That is for a V series Keychron keyboard (and presumably for all keyboards in …
Setting RGB colour for individual keys in QMK (per-key RGB colour) Read more »
Getting output from printf debugging for QMK is not worth much if it is not known what the QMK key codes actually are. That is, actual numbers, not the symbolic names in the source code. Some QMK keycodes (raw numbers) …
The short version: Building the third-party tool “hid_listen” from source and using Ubuntu 20.04 (Focal Fossa) or later enables debugging of QMK firmware on Ubuntu. Introduction Printf debugging is enabled in QMK by using the standard printf (or its cousin dprintf()) …