History

Ilya Zhuravlev fde0c10bae Merge remote-tracking branch 'qmk/master' into merge-2022-07-11		2022-07-11 18:40:32 -06:00
..
keymaps	Merge remote-tracking branch 'qmk/master' into merge-2022-07-11	2022-07-11 18:40:32 -06:00
4x4.c	Remove empty override functions (#14312 )	2021-09-05 21:36:31 +01:00
4x4.h	Remove KEYMAP and LAYOUT_kc (#12160 )	2021-05-11 10:10:31 -07:00
config.h	Remove `NO_ACTION_MACRO` and `NO_ACTION_FUNCTION` from keyboard config.h (#16655 )	2022-03-15 13:56:58 +00:00
info.json	Move keyboard USB IDs and strings to data driven: 0-9 (#16481 )	2022-03-13 23:54:49 +00:00
readme.md	relocate 40percent.club boards to new parent folder (#4380 )	2018-11-08 15:17:41 -08:00
rules.mk	Tidy up NKRO_ENABLE rules (#15382 )	2021-12-09 16:05:44 +11:00

readme.md

4x4

Modular keypad/keyboard
The basic unit is a 4x4 matrix with 16 keys. Up to 4 of these can be connected to each other side by side.
4x4, 4x8, 4x12 and 4x16 are possible.
There are pads for header pins on each side that complete the circuits from board to board. These can be permanently connected with solder bridges or temporarily with pin headers and shunt jumpers.
All configurations are powered by a SINGLE Arduino Micro or clone (NOT a Pro Micro).

The original TMK firmware

Keyboard Maintainer: QMK Community
Hardware Supported: 4x4 PCB
Hardware Availability: 4x4x4x4x4 project on 40% Keyboards

Make example for this keyboard (after setting up your build environment):

make 40percentclub/4x4:default

See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.

First pass at adding support for the 4x4 keyboard. Compiles but completely untested. Intended to kick-start development.