Electroboard

A keymap generator for custom/homemade keyboards using tmk_firmware or qmk_firmware keycodes.

Builds

(already packaged, ready to use)

How to use

Generate a matrix with the amount of layers that you want.
Click the keycaps that you want to change and select the new value from the popup.
Generate the keymap.
Save it.

Importing an existing keymap

For an existing keymap you would probably have to do some modifications to the file before importing it. Refer to File Formats

If your keymap has function definitions, imports and more. Move them to a separated file in the same directory and name it keymap_common.h. That file will be imported by the new generated code.

Remove spaces and add new lines when needed, as the File Formats section says for the firmware of your choice.

If you are using variables to define the layers, please change it back to numbers. (e.g.: [0]={...} instead of [_LW]={...})

Firmware selection

Select the firmware that you want to work with at the top. (TMK or QMK)
Click the "Change" button, even if the amount of layers, rows and columns are the same.

Known issue:

Does't generate a good keymap for non-rectangular grids.
This version doesn't handle function definitions and extra code like imports and definitions. So if you are importing an existing keymap to modify it, you should move all your custom code and functions to keymap_common.h that is imported by the new generated file.
Any unrecognized code will be loaded as it is, for example MO(0). See the screenshots.

Technology in use

Fileformat

The output file will be something similar to this.

#include "keymap_common.h"
const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

[0] = KEYMAP(
ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, BSPC, \
TAB, Q, W, E, R, T, Y, U, I, O, P, ENT, \
CAPS, A, S, D, F, G, H, J, K, L, SCLN, QUOT, \
LSFT, Z, X, C, V, B, N, M, COMM, DOT, SLSH, RSFT, \
LCTL, LGUI, LALT, NO, FN0, SPC, SPC, FN1, NO, RALT, BSPC, RCTL, \
),

[1] = KEYMAP(
NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, \
GRV, NO, NO, NO, NO, NO, NO, NO, NO, FN2, FN3, FN4, \
NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, \
LSFT, NO, FN12, FN11, FN10, NO, NO, NO, NO, NO, FN6, RSFT, \
LCTL, NO, NO, NO, FN0, SPC, SPC, FN1, NO, NO, NO, RCTL, \
),

[2] = KEYMAP(
F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, \
FN5, NO, UP, NO, NO, NO, NO, NO, NO, LBRC, RBRC, BSLS, \
NO, LEFT, DOWN, , NO, NO, NO, NO, NO, NO, MINS, EQL, \
LSFT, NO, NO, NO, NO, NO, NO, NO, NO, NO, NO, RSFT, \
LCTL, NO, NO, NO, FN0, SPC, SPC, FN1, NO, NO, NO, RCTL, \
),

};

Import a file

The file to import should respect this format:

TMK

Each layer starts with KEYMAP.
New line after KEYMAP(.
Each line is a row.
Each row starts at the start of the line. (No space at the beginning)
Each row ends with \.
Empty line between layers.

[0] = KEYMAP(
ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, BSPC, \
TAB, Q, W, E, R, T, Y, U, I, O, P, ENT, \
CAPS, A, S, D, F, G, H, J, K, L, SCLN, QUOT, \
LSFT, Z, X, C, V, B, N, M, COMM, DOT, SLSH, RSFT, \
LCTL, LGUI, LALT, NO, FN0, SPC, SPC, FN1, NO, RALT, BSPC, RCTL, \
),

[1] = KEYMAP(
...
),

QMK

Use numbers for layers instead of variables. (eg [0] instead of [QWERTY]).
New line after [0] = {.
Each line is a row.
Each row starts at the start of the line. (No space at the beginning)
Each row ends with a new line.
Empty line between layers.

[0] = {
{KC_TAB,  KC_Q,    KC_W,    KC_E,   KC_R,    KC_T,   KC_Y,   KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC},
{KC_ESC,  KC_A,    KC_S,    KC_D,   KC_F,    KC_G,   KC_H,   KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT},
{KC_LSFT, KC_Z,    KC_X,    KC_C,   KC_V,    KC_B,   KC_N,   KC_M,    KC_COMM, KC_DOT,  KC_SLSH, MT(MOD_RSFT, KC_ENT)},
{KC_LCTL, KC_LGUI, KC_LALT, M(0),   MO(0), KC_SPC, KC_SPC, MO(1), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
},

[1] = {
...
}

Note

If you ain't sure about the format, my advice is to generate and save a dummy file to see what you have to change in your current keymap to respect the expected file format.

Screenshot

ToDo

Add shortcuts to QMK dictionary from https://github.com/qmk/qmk_firmware/blob/master/quantum/keymap_common.c
Custom CSS from user
Support irregular layouts, like a normal keyboard with a long spacebar
Manage Functions

leizzer/electroboard