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@@ -1,11 +1,13 @@ -# Quantum MK Firmware +# Quantum Mechanical Keyboard Firmware -This is a keyboard firmware based on the [tmk_keyboard firmware](http://github.com/tmk/tmk_keyboard) with some useful features for Atmel AVR controllers, and more specifically, the [OLKB product line](http://olkb.co) and the [ErgoDox EZ](http://www.ergodox-ez.com) keyboard. +This is a keyboard firmware based on the [tmk_keyboard firmware](http://github.com/tmk/tmk_keyboard) with some useful features for Atmel AVR controllers, and more specifically, the [OLKB product line](http://olkb.co), the [ErgoDox EZ](http://www.ergodox-ez.com) keyboard, and the [Clueboard product line](http://clueboard.co/). QMK is developed and maintained by Jack Humbert of OLKB with contributions from the community, and of course, TMK. This documentation is edited and maintained by Erez Zukerman of ErgoDox EZ. If you spot any typos or inaccuracies, please [open an issue](https://github.com/jackhumbert/qmk_firmware/issues/new). +The OLKB product firmwares are maintained by Jack, the Ergodox EZ by Erez, and the Clueboard by [Zach White](https://github.com/skullydazed). + ## Important background info: TMK documentation The documentation below explains QMK customizations and elaborates on some of the more useful features of TMK. To understand the base firmware, and especially what *layers* are and how they work, please see [TMK_README.md](/TMK_README.md). @@ -211,6 +213,23 @@ This will clear all keys besides the mods currently pressed. If the user attempts to activate layer 1 AND layer 2 at the same time (for example, by hitting their respective layer keys), layer 3 will be activated. Layers 1 and 2 will _also_ be activated, for the purposes of fallbacks (so a given key will fall back from 3 to 2, to 1 -- and only then to 0). +#### Naming your macros + +If you have a bunch of macros you want to refer to from your keymap, while keeping the keymap easily readable, you can just name them like so: + +``` +#define AUD_OFF M(6) +#define AUD_ON M(7) +#define MUS_OFF M(8) +#define MUS_ON M(9) +#define VC_IN M(10) +#define VC_DE M(11) +#define PLOVER M(12) +#define EXT_PLV M(13) +``` + +As was done on the [Planck default keymap](/keyboard/planck/keymaps/default/keymap.c#L33-L40) + #### Timer functionality It's possible to start timers and read values for time-specific events - here's an example: @@ -227,11 +246,91 @@ if (timer_elapsed(key_timer) < 100) { It's best to declare the `static uint16_t key_timer;` outside of the macro block (top of file, etc). +#### Example 1: Single-key copy/paste (hold to copy, tap to paste) + +With QMK, it's easy to make one key do two things, as long as one of those things is being a modifier. :) So if you want a key to act as Ctrl when held and send the letter R when tapped, that's easy: `CTL_T(KC_R)`. But what do you do when you want that key to send Ctrl-V (paste) when tapped, and Ctrl-C (copy) when held? + +Here's what you do: + + +``` +static uint16_t key_timer; + +const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) +{ + switch(id) { + case 0: { + if (record->event.pressed) { + key_timer = timer_read(); // if the key is being pressed, we start the timer. + } + else { // this means the key was just released, so we can figure out how long it was pressed for (tap or "held down"). + if (timer_elapsed(key_timer) > 150) { // 150 being 150ms, the threshhold we pick for counting something as a tap. + return MACRO( D(LCTL), T(C), U(LCTL), END ); + } + else { + return MACRO( D(LCTL), T(V), U(LCTL), END ); + } + } + break; + } + } + return MACRO_NONE; +}; +``` + +And then, to assign this macro to a key on your keyboard layout, you just use `M(0)` on the key you want to press for copy/paste. + +#### Example 2: Space Cadet Shift (making it easy to send opening and closing parentheses) + +In the [Modern Space Cadet Keyboard](http://stevelosh.com/blog/2012/10/a-modern-space-cadet/#shift-parentheses), one of cooler features is the Shift Parentheses. To quote Steve Losh: + + > When held while pressing other keys, act like Shift. + > When pressed and released on their own, type an opening or closing parenthesis (left and right shift respectively). + +``` +static uint16_t key_timer; + +const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) +{ + switch(id) { + case 0: { + if (record->event.pressed) { + key_timer = timer_read(); // if the key is being pressed, we start the timer. + register_code(KC_LSFT); // we're now holding down Shift. + } else { // this means the key was just released, so we can figure out how long it was pressed for (tap or "held down"). + if (timer_elapsed(key_timer) < 150) { // 150 being 150ms, the threshhold we pick for counting something as a tap. + register_code(KC_9); // sending 9 while Shift is held down gives us an opening paren + unregister_code(KC_9); // now let's let go of that key + } + unregister_code(KC_LSFT); // let's release the Shift key now. + } + break; + } + case 1: { + if (record->event.pressed) { + key_timer = timer_read(); // Now we're doing the same thing, only for the right shift/close paren key + register_code(KC_RSFT); + } else { + if (timer_elapsed(key_timer) < 150) { + register_code(KC_0); + unregister_code(KC_0); + } + unregister_code(KC_RSFT); + } + break; + } + } + return MACRO_NONE; +}; +``` + +And then, to assign this macro to a key on your keyboard layout, you just use `M(0)` on the key you want to press for left shift/opening parens, and `M(1)` for right shift/closing parens. + ## Additional keycode aliases for software-implemented layouts (Colemak, Dvorak, etc) Everything is assuming you're in Qwerty (in software) by default, but there is built-in support for using a Colemak or Dvorak layout by including this at the top of your keymap: - #include <keymap_extras/keymap_colemak.h> + #include <keymap_colemak.h> If you use Dvorak, use `keymap_dvorak.h` instead of `keymap_colemak.h` for this line. After including this line, you will get access to: @@ -274,7 +373,7 @@ This requires [some hardware changes](https://www.reddit.com/r/MechanicalKeyboar ## International Characters on Windows -[AutoHotkey](https://autohotkey.com) allows Windows users to create custom hotkeys amont others. +[AutoHotkey](https://autohotkey.com) allows Windows users to create custom hotkeys among others. The method does not require Unicode support in the keyboard itself but depends instead of AutoHotkey running in the background. |