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[Keyboard] add 3w6 (#13746)

master
weteor 2021-08-19 20:13:00 +02:00 committed by GitHub
parent 8200804e96
commit 1bfbaae533
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56
keyboards/3w6/info.json 100644
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{
"keyboard_name": "3w6",
"url": "https://github.com/weteor/3W6/",
"maintainer": "weteor",
"width": 13,
"height": 5,
"layouts": {
"LAYOUT": {
"layout": [
{"label": "k00", "x": 0, "y": 0.8},
{"label": "k01", "x": 1, "y": 0.2},
{"label": "k02", "x": 2, "y": 0},
{"label": "k03", "x": 3, "y": 0.2},
{"label": "k04", "x": 4, "y": 0.4},
{"label": "k05", "x": 8, "y": 0.4},
{"label": "k06", "x": 9, "y": 0.2},
{"label": "k07", "x": 10, "y": 0},
{"label": "k08", "x": 11, "y": 0.2},
{"label": "k09", "x": 12, "y": 0.8},
{"label": "k10", "x": 0, "y": 1.8},
{"label": "k11", "x": 1, "y": 1.2},
{"label": "k12", "x": 2, "y": 1},
{"label": "k13", "x": 3, "y": 1.2},
{"label": "k14", "x": 4, "y": 1.4},
{"label": "k15", "x": 8, "y": 1.4},
{"label": "k16", "x": 9, "y": 1.2},
{"label": "k17", "x": 10, "y": 1},
{"label": "k18", "x": 11, "y": 1.2},
{"label": "k19", "x": 12, "y": 1.8},
{"label": "k20", "x": 0, "y": 2.8},
{"label": "k21", "x": 1, "y": 2.2},
{"label": "k22", "x": 2, "y": 2},
{"label": "k23", "x": 3, "y": 2.2},
{"label": "k24", "x": 4, "y": 2.4},
{"label": "k25", "x": 8, "y": 2.4},
{"label": "k26", "x": 9, "y": 2.2},
{"label": "k27", "x": 10, "y": 2},
{"label": "k28", "x": 11, "y": 2.2},
{"label": "k29", "x": 12, "y": 2.8},
{"label": "k32", "x": 3.2, "y": 3.6},
{"label": "k33", "x": 4.2, "y": 3.6},
{"label": "k34", "x": 5.2, "y": 3.8},
{"label": "k35", "x": 6.8, "y": 3.8},
{"label": "k36", "x": 7.8, "y": 3.6},
{"label": "k37", "x": 8.8, "y": 3.6}
]
}
}
}

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keyboards/3w6/keymaps/default/keymap.c 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include QMK_KEYBOARD_H
enum layers
{
_ALPHA_QWERTY = 0,
_ALPHA_COLEMAK,
_SYM,
_NAV,
_NUM,
_CFG,
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[_ALPHA_QWERTY] = LAYOUT(
KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P,
KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN,
LSFT_T(KC_Z), KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, RSFT_T(KC_SLSH),
LCTL_T(KC_ESC), LT(_NUM,KC_SPC), LT(_NAV, KC_TAB), LT(_SYM, KC_BSPC), KC_ENT, LALT_T(KC_DEL)
),
[_ALPHA_COLEMAK] = LAYOUT(
KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_QUOT,
KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O,
LSFT_T(KC_Z), KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, RSFT_T(KC_SCLN),
LCTL_T(KC_ENT), LT(_NUM,KC_SPC), LT(_NAV, KC_TAB), LT(_SYM, KC_BSPC), KC_ENT, LALT_T(KC_DEL)
),
[_SYM] = LAYOUT(
KC_GRV , KC_CIRC, KC_AT, KC_DLR, KC_TILD, KC_AMPR, KC_EXLM, KC_PIPE, KC_UNDS, KC_HASH,
KC_SLSH, KC_LBRC, KC_LCBR, KC_LPRN, KC_EQL, KC_ASTR, KC_RPRN, KC_RCBR, KC_RBRC, KC_BSLS,
_______, KC_QUES, KC_PLUS, KC_PERC, XXXXXXX, XXXXXXX, XXXXXXX, KC_MINS, XXXXXXX, _______,
XXXXXXX, MO(_CFG), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
),
[_NAV] = LAYOUT(
XXXXXXX, KC_VOLD, KC_MUTE, KC_VOLU, XXXXXXX, XXXXXXX, KC_PGDN, KC_UP, KC_PGUP, KC_DEL,
KC_MPRV, KC_MPLY, KC_MSTP, KC_MNXT, XXXXXXX, KC_HOME, KC_LEFT, KC_DOWN, KC_RGHT, KC_END,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, MO(_CFG), XXXXXXX
),
[_NUM] = LAYOUT(
XXXXXXX, KC_F9, KC_F10, KC_F11, KC_F12, KC_PPLS, KC_P7, KC_P8, KC_P9, KC_PSLS,
XXXXXXX, KC_F5, KC_F6, KC_F7, KC_F8, KC_P0, KC_P4, KC_P5, KC_P6, KC_PDOT,
XXXXXXX, KC_F1, KC_F2, KC_F3, KC_F4, KC_PMNS, KC_P1, KC_P2, KC_P3, KC_PAST,
XXXXXXX, XXXXXXX, XXXXXXX, KC_PEQL, KC_PENT, XXXXXXX
),
[_CFG] = LAYOUT(
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,DF(_ALPHA_QWERTY), DF(_ALPHA_COLEMAK),
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
),
};

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keyboards/3w6/keymaps/manna-harbour_miryoku/config.h 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// generated from users/manna-harbour_miryoku/miryoku.org -*- buffer-read-only: t -*-
#pragma once
#define LAYOUT_miryoku( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, \
N30, N31, K32, K33, K34, K35, K36, K37, N38, N39 \
) \
LAYOUT( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, \
K32, K33, K34, K35, K36, K37 \
)

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keyboards/3w6/keymaps/manna-harbour_miryoku/keymap.c 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// generated from users/manna-harbour_miryoku/miryoku.org -*- buffer-read-only: t -*-

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keyboards/3w6/readme.md 100644
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# 3W6
![3W6](https://raw.githubusercontent.com/weteor/3W6/main/images/3w6_rev2_1s.jpg)
The 3w6 is a low profile, split ortholinear keyboard with 36 keys.
I needed a keyboard for work and wasn't really satisfied with the available alternatives (namely Corne, Kyria and Ferris), mostly because they are either rather large and/or don't have the spacing I would like.
The 3w6 is designed to be a simple, realiable, cheap and small keyboard to be taken everywhere.
There are currently two revisions:
* Rev1:
- onboard microcontroller (ATMega32U4)
- USB-C connector Board <-> PC
- USB-C connectors between both split halfs
- choc spacing (18x17mm)
- aggressive pinky stagger
- support for Choc V1 switches
* Rev2:
- everything Rev1 did
- additional middle plate (2mm)
- support for [Pimoroni Trackball](https://shop.pimoroni.com/products/trackball-breakout) instead of outer thumb switch on right half, needs midplate
- mounting holes for [Tenting Puck](https://splitkb.com/collections/keyboard-parts/products/tenting-puck), only usable without mid or switchplate
---
* Keyboard Maintainer: [weteor](https://github.com/weteor)
* Hardware Supported:
* 3w6 rev1
* 3w6 rev2 (with Pimoroni support)
* Hardware Availability:
* make one yourself: [Design and Productionfiles](https://github.com/weteor/3w6)
* maintainer is selling kits when available
---
To reach the bootloader, connect the board to the PC and push the reset button on left half.
Make examples for this keyboard (after setting up your build environment):
make 3w6/rev1:default
make 3w6/rev2:default
make 3w6/rev2:default_pimoroni
---
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

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keyboards/3w6/rev1/config.h 100644
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/*
Copyright 2021 weteor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
/* USB Device descriptor parameter */
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x4658
#define DEVICE_VER 0x0001
#define MANUFACTURER weteor
#define PRODUCT 3w6
/* key matrix size */
#define MATRIX_ROWS 8
#define MATRIX_COLS 10
#define MATRIX_ROWS_PER_SIDE (MATRIX_ROWS / 2)
#define MATRIX_COLS_PER_SIDE (MATRIX_COLS / 2)
/*
* Keyboard Matrix Assignments
*
* Change this to how you wired your keyboard
* COLS: AVR pins used for columns, left to right
* ROWS: AVR pins used for rows, top to bottom
* DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
* ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
*
*/
#define MATRIX_ROW_PINS_L { B0, B1, B2, B4}
#define MATRIX_COL_PINS_L { B3, E6, F7, B6, B5 }
#define UNUSED_PINS_L { B7, C6, C7, D2, D3, D4, D5, D6, D7, F0, F1, F4, F5, F6 }
#define MATRIX_ROW_PINS_R { P10, P11, P12, P05 }
#define MATRIX_COL_PINS_R { P06, P13, P14, P01, P00 }
#define UNUSED_PINS_R { P02, P03, P04, P07, P15, P16, P17 }
/* COL2ROW, ROW2COL */
#define DIODE_DIRECTION COL2ROW
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
#define DEBOUNCE 5
/* disable these deprecated features by default */
#define NO_ACTION_MACRO
#define NO_ACTION_FUNCTION

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/*
Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com>
2020 Pierre Chevalier <pierrechevalier83@gmail.com>
2021 weteor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This code was heavily inspired by the ergodox_ez keymap, and modernized
* to take advantage of the quantum.h microcontroller agnostics gpio control
* abstractions and use the macros defined in config.h for the wiring as opposed
* to repeating that information all over the place.
*/
#include QMK_KEYBOARD_H
#include "i2c_master.h"
extern i2c_status_t tca9555_status;
#define I2C_TIMEOUT 1000
// I2C address:
// All address pins of the tca9555 are connected to the ground
// | 0 | 1 | 0 | 0 | A2 | A1 | A0 |
// | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
#define I2C_ADDR 0b0100000
#define I2C_ADDR_WRITE ((I2C_ADDR << 1) | I2C_WRITE)
#define I2C_ADDR_READ ((I2C_ADDR << 1) | I2C_READ)
// Register addresses
#define IODIRA 0x06 // i/o direction register
#define IODIRB 0x07
#define IREGP0 0x00 // GPIO pull-up resistor register
#define IREGP1 0x01
#define OREGP0 0x02 // general purpose i/o port register (write modifies OLAT)
#define OREGP1 0x03
bool i2c_initialized = 0;
i2c_status_t tca9555_status = I2C_ADDR;
uint8_t init_tca9555(void) {
print("starting init");
tca9555_status = I2C_ADDR;
// I2C subsystem
if (i2c_initialized == 0) {
i2c_init(); // on pins D(1,0)
i2c_initialized = true;
wait_ms(I2C_TIMEOUT);
}
// set pin direction
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(IODIRA, I2C_TIMEOUT);
if (tca9555_status) goto out;
// This means: write on pin 5 of port 0, read on rest
tca9555_status = i2c_write(0b11011111, I2C_TIMEOUT);
if (tca9555_status) goto out;
// This means: we will write on pins 0 to 2 on port 1. read rest
tca9555_status = i2c_write(0b11111000, I2C_TIMEOUT);
if (tca9555_status) goto out;
out:
i2c_stop();
return tca9555_status;
}
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
static matrix_row_t read_cols(uint8_t row);
static void init_cols(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
static uint8_t tca9555_reset_loop;
void matrix_init_custom(void) {
// initialize row and col
tca9555_status = init_tca9555();
unselect_rows();
init_cols();
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
}
}
void matrix_power_up(void) {
tca9555_status = init_tca9555();
unselect_rows();
init_cols();
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
}
}
// Reads and stores a row, returning
// whether a change occurred.
static inline bool store_matrix_row(matrix_row_t current_matrix[], uint8_t index) {
matrix_row_t temp = read_cols(index);
if (current_matrix[index] != temp) {
current_matrix[index] = temp;
return true;
}
return false;
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
if (tca9555_status) { // if there was an error
if (++tca9555_reset_loop == 0) {
// since tca9555_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
// this will be approx bit more frequent than once per second
dprint("trying to reset tca9555\n");
tca9555_status = init_tca9555();
if (tca9555_status) {
dprint("right side not responding\n");
} else {
dprint("right side attached\n");
}
}
}
bool changed = false;
for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) {
// select rows from left and right hands
uint8_t left_index = i;
uint8_t right_index = i + MATRIX_ROWS_PER_SIDE;
select_row(left_index);
select_row(right_index);
// we don't need a 30us delay anymore, because selecting a
// left-hand row requires more than 30us for i2c.
changed |= store_matrix_row(current_matrix, left_index);
changed |= store_matrix_row(current_matrix, right_index);
unselect_rows();
}
return changed;
}
static void init_cols(void) {
// init on tca9555
// not needed, already done as part of init_tca9555()
// init on mcu
pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_L;
for (int pin_index = 0; pin_index < MATRIX_COLS_PER_SIDE; pin_index++) {
pin_t pin = matrix_col_pins_mcu[pin_index];
setPinInput(pin);
writePinHigh(pin);
}
}
static matrix_row_t read_cols(uint8_t row) {
if (row < MATRIX_ROWS_PER_SIDE) {
pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_L;
matrix_row_t current_row_value = 0;
// For each col...
for (uint8_t col_index = 0; col_index < MATRIX_COLS_PER_SIDE; col_index++) {
// Select the col pin to read (active low)
uint8_t pin_state = readPin(matrix_col_pins_mcu[col_index]);
// Populate the matrix row with the state of the col pin
current_row_value |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
}
return current_row_value;
} else {
if (tca9555_status) { // if there was an error
return 0;
} else {
uint8_t data = 0;
uint8_t port0 = 0;
uint8_t port1 = 0;
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(IREGP0, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_read_ack(I2C_TIMEOUT);
if (tca9555_status < 0) goto out;
port0 = (uint8_t)tca9555_status;
tca9555_status = i2c_read_nack(I2C_TIMEOUT);
if (tca9555_status < 0) goto out;
port1 = (uint8_t)tca9555_status;
// The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
// The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
// Since the pins are not ordered sequentially, we have to build the correct dataset from the two ports. Refer to the schematic to see where every pin is connected.
data |= ( port0 & 0x01 );
data |= ( port0 & 0x02 );
data |= ( port1 & 0x10 ) >> 2;
data |= ( port1 & 0x08 );
data |= ( port0 & 0x40 ) >> 2;
data = ~(data);
tca9555_status = I2C_STATUS_SUCCESS;
out:
i2c_stop();
return data;
}
}
}
static void unselect_rows(void) {
// no need to unselect on tca9555, because the select step sets all
// the other row bits high, and it's not changing to a different
// direction
// unselect rows on microcontroller
pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_L;
for (int pin_index = 0; pin_index < MATRIX_ROWS_PER_SIDE; pin_index++) {
pin_t pin = matrix_row_pins_mcu[pin_index];
setPinInput(pin);
writePinLow(pin);
}
}
static void select_row(uint8_t row) {
uint8_t port0 = 0xff;
uint8_t port1 = 0xff;
if (row < MATRIX_ROWS_PER_SIDE) {
// select on atmega32u4
pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_L;
pin_t pin = matrix_row_pins_mcu[row];
setPinOutput(pin);
writePinLow(pin);
} else {
// select on tca9555
if (tca9555_status) { // if there was an error
// do nothing
} else {
switch(row) {
case 4: port1 &= ~(1 << 0); break;
case 5: port1 &= ~(1 << 1); break;
case 6: port1 &= ~(1 << 2); break;
case 7: port0 &= ~(1 << 5); break;
default: break;
}
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(OREGP0, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(port0, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(port1, I2C_TIMEOUT);
if (tca9555_status) goto out;
// Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
// Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
out:
i2c_stop();
}
}
}

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# 3W6
![3W6](https://raw.githubusercontent.com/weteor/3W6/main/images/3w6_1s.jpg)
![3W6](https://raw.githubusercontent.com/weteor/3W6/main/images/3w6_3s.jpg)
The 3w6 is a low profile, split ortholinear keyboard with 36 keys.
* Rev1:
- onboard microcontroller (ATMega32U4)
- USB-C connector Board <-> PC
- USB-C connectors between both split halfs
- choc spacing (18x17mm)
- aggressive pinky stagger
- support for Choc V1 switches
---
* Keyboard Maintainer: [weteor](https://github.com/weteor)
* Hardware Supported:
* 3w6 rev1
* Hardware Availability (this is an older version, current revision is rev2):
* make one yourself: [Design and Productionfiles](https://github.com/weteor/3w6)
---
To reach the bootloader, connect the board to the PC and push the reset button on left half.
Make examples for this keyboard (after setting up your build environment):
make 3w6/rev1:default
---
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

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keyboards/3w6/rev1/rev1.c 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "rev1.h"

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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "quantum.h"
/* This is a shortcut to help you visually see your layout.
*
* The first section contains all of the arguments representing the physical
* layout of the board and position of the keys.
*
* The second converts the arguments into a two-dimensional array which
* represents the switch matrix.
*/
#define LAYOUT( \
k00, k01, k02, k03, k04, k05, k06, k07, k08, k09,\
k10, k11, k12, k13, k14, k15, k16, k17, k18, k19,\
k20, k21, k22, k23, k24, k25, k26, k27, k28, k29,\
k32, k33, k34, k35, k36, k37\
) { \
{ k00, k01, k02, k03, k04 }, \
{ k10, k11, k12, k13, k14 }, \
{ k20, k21, k22, k23, k24 }, \
{ KC_NO, KC_NO, k32, k33, k34 }, \
\
{ k05, k06, k07, k08, k09 }, \
{ k15, k16, k17, k18, k19 }, \
{ k25, k26, k27, k28, k29 }, \
{ k35, k36, k37, KC_NO, KC_NO }, \
}

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keyboards/3w6/rev1/rules.mk 100644
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# MCU name
MCU = atmega32u4
# Bootloader selection
BOOTLOADER = atmel-dfu
# Build Options
# change yes to no to disable
#
BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration
MOUSEKEY_ENABLE = yes # Mouse keys
EXTRAKEY_ENABLE = yes # Audio control and System control
CONSOLE_ENABLE = no # Console for debug
COMMAND_ENABLE = no # Commands for debug and configuration
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
NKRO_ENABLE = no # USB Nkey Rollover
BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
BLUETOOTH_ENABLE = no # Enable Bluetooth
AUDIO_ENABLE = no # Audio output
UNICODE_ENABLE = yes
CUSTOM_MATRIX = lite
NO_USB_STARTUP_CHECK = yes
LTO_ENABLE = no
SRC += matrix.c
QUANTUM_LIB_SRC += i2c_master.c

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keyboards/3w6/rev2/config.h 100644
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/*
Copyright 2021 weteor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
/* USB Device descriptor parameter */
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x4658
#define DEVICE_VER 0x0002
#define MANUFACTURER weteor
#define PRODUCT 3w6
/* key matrix size */
#define MATRIX_ROWS 8
#define MATRIX_COLS 10
#define MATRIX_ROWS_PER_SIDE (MATRIX_ROWS / 2)
#define MATRIX_COLS_PER_SIDE (MATRIX_COLS / 2)
/*
* Keyboard Matrix Assignments
*
* Change this to how you wired your keyboard
* COLS: AVR pins used for columns, left to right
* ROWS: AVR pins used for rows, top to bottom
* DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
* ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
*
*/
#define MATRIX_ROW_PINS_L { B0, B1, B2, B4}
#define MATRIX_COL_PINS_L { B3, E6, F7, B6, B5 }
#define UNUSED_PINS_L { B7, C6, C7, D2, D3, D4, D5, D6, D7, F0, F1, F4, F5, F6 }
#define MATRIX_ROW_PINS_R { P10, P11, P12, P05 }
#define MATRIX_COL_PINS_R { P06, P13, P14, P01, P00 }
#define UNUSED_PINS_R { P02, P03, P04, P07, P15, P16, P17 }
/* COL2ROW, ROW2COL */
#define DIODE_DIRECTION COL2ROW
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
#define DEBOUNCE 5
/* disable these deprecated features by default */
#define NO_ACTION_MACRO
#define NO_ACTION_FUNCTION

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keyboards/3w6/rev2/keymaps/default_pimoroni/config.h 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#define PIMORONI_TRACKBALL_INVERT_Y
#define PIMORONI_TRACKBALL_ROTATE

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keyboards/3w6/rev2/keymaps/default_pimoroni/keymap.c 100644
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/*
Copyright 2021 weteor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include QMK_KEYBOARD_H
enum layers
{
_ALPHA_QWERTY = 0,
_ALPHA_COLEMAK,
_SYM,
_NAV,
_NUM,
_CFG,
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[_ALPHA_QWERTY] = LAYOUT(
KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P,
KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN,
LSFT_T(KC_Z), KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, RSFT_T(KC_SLSH),
LCTL_T(KC_ESC), LT(_NUM,KC_SPC), LT(_NAV, KC_TAB), LT(_SYM, KC_BSPC), KC_ENT, LALT_T(KC_DEL)
),
[_ALPHA_COLEMAK] = LAYOUT(
KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_QUOT,
KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O,
LSFT_T(KC_Z), KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, RSFT_T(KC_SCLN),
LCTL_T(KC_ENT), LT(_NUM,KC_SPC), LT(_NAV, KC_TAB), LT(_SYM, KC_BSPC), KC_ENT, LALT_T(KC_DEL)
),
[_SYM] = LAYOUT(
KC_GRV , KC_CIRC, KC_AT, KC_DLR, KC_TILD, KC_AMPR, KC_EXLM, KC_PIPE, KC_UNDS, KC_HASH,
KC_SLSH, KC_LBRC, KC_LCBR, KC_LPRN, KC_EQL, KC_ASTR, KC_RPRN, KC_RCBR, KC_RBRC, KC_BSLS,
_______, KC_QUES, KC_PLUS, KC_PERC, XXXXXXX, XXXXXXX, XXXXXXX, KC_MINS, XXXXXXX, _______,
XXXXXXX, MO(_CFG), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
),
[_NAV] = LAYOUT(
XXXXXXX, KC_VOLD, KC_MUTE, KC_VOLU, XXXXXXX, XXXXXXX, KC_PGDN, KC_UP, KC_PGUP, KC_DEL,
KC_MPRV, KC_MPLY, KC_MSTP, KC_MNXT, XXXXXXX, KC_HOME, KC_LEFT, KC_DOWN, KC_RGHT, KC_END,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, MO(_CFG), XXXXXXX
),
[_NUM] = LAYOUT(
XXXXXXX, KC_F9, KC_F10, KC_F11, KC_F12, KC_PPLS, KC_P7, KC_P8, KC_P9, KC_PSLS,
XXXXXXX, KC_F5, KC_F6, KC_F7, KC_F8, KC_P0, KC_P4, KC_P5, KC_P6, KC_PDOT,
XXXXXXX, KC_F1, KC_F2, KC_F3, KC_F4, KC_PMNS, KC_P1, KC_P2, KC_P3, KC_PAST,
XXXXXXX, XXXXXXX, XXXXXXX, KC_PEQL, KC_PENT, XXXXXXX
),
[_CFG] = LAYOUT(
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,DF(_ALPHA_QWERTY), DF(_ALPHA_COLEMAK),
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
),
};

177
keyboards/3w6/rev2/keymaps/default_pimoroni/pimoroni_trackball.c 100644
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/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pimoroni_trackball.h"
#include "i2c_master.h"
static uint8_t scrolling = 0;
static int16_t x_offset = 0;
static int16_t y_offset = 0;
static int16_t h_offset = 0;
static int16_t v_offset = 0;
static float precisionSpeed = 1;
static uint16_t i2c_timeout_timer;
#ifndef I2C_TIMEOUT
# define I2C_TIMEOUT 100
#endif
#ifndef I2C_WAITCHECK
# define I2C_WAITCHECK 1000
#endif
#ifndef MOUSE_DEBOUNCE
# define MOUSE_DEBOUNCE 5
#endif
void trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white) {
uint8_t data[] = {0x00, red, green, blue, white};
i2c_transmit(TRACKBALL_WRITE, data, sizeof(data), I2C_TIMEOUT);
}
int16_t mouse_offset(uint8_t positive, uint8_t negative, int16_t scale) {
int16_t offset = (int16_t)positive - (int16_t)negative;
int16_t magnitude = (int16_t)(scale * offset * offset * precisionSpeed);
return offset < 0 ? -magnitude : magnitude;
}
void update_member(int8_t* member, int16_t* offset) {
if (*offset > 127) {
*member = 127;
*offset -= 127;
} else if (*offset < -127) {
*member = -127;
*offset += 127;
} else {
*member = *offset;
*offset = 0;
}
}
__attribute__((weak)) void trackball_check_click(bool pressed, report_mouse_t* mouse) {
if (pressed) {
mouse->buttons |= MOUSE_BTN1;
} else {
mouse->buttons &= ~MOUSE_BTN1;
}
}
bool process_record_kb(uint16_t keycode, keyrecord_t* record) {
if (true) {
xprintf("KL: kc: %u, col: %u, row: %u, pressed: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed);
}
if (!process_record_user(keycode, record)) { return false; }
/* If Mousekeys is disabled, then use handle the mouse button
* keycodes. This makes things simpler, and allows usage of
* the keycodes in a consistent manner. But only do this if
* Mousekeys is not enable, so it's not handled twice.
*/
#ifndef MOUSEKEY_ENABLE
if (IS_MOUSEKEY_BUTTON(keycode)) {
report_mouse_t currentReport = pointing_device_get_report();
if (record->event.pressed) {
currentReport.buttons |= 1 << (keycode - KC_MS_BTN1);
} else {
currentReport.buttons &= ~(1 << (keycode - KC_MS_BTN1));
}
pointing_device_set_report(currentReport);
pointing_device_send();
}
#endif
return true;
}
void trackball_register_button(bool pressed, enum mouse_buttons button) {
report_mouse_t currentReport = pointing_device_get_report();
if (pressed) {
currentReport.buttons |= button;
} else {
currentReport.buttons &= ~button;
}
pointing_device_set_report(currentReport);
}
float trackball_get_precision(void) { return precisionSpeed; }
void trackball_set_precision(float precision) { precisionSpeed = precision; }
bool trackball_is_scrolling(void) { return scrolling; }
void trackball_set_scrolling(bool scroll) { scrolling = scroll; }
__attribute__((weak)) void pointing_device_init(void) { trackball_set_rgbw(0x80, 0x00, 0x00, 0x00); }
void pointing_device_task(void) {
static bool debounce;
static uint16_t debounce_timer;
uint8_t state[5] = {};
if (timer_elapsed(i2c_timeout_timer) > I2C_WAITCHECK) {
if (i2c_readReg(TRACKBALL_WRITE, 0x04, state, 5, I2C_TIMEOUT) == I2C_STATUS_SUCCESS) {
if (!state[4] && !debounce) {
if (scrolling) {
#ifdef PIMORONI_TRACKBALL_INVERT_X
h_offset += mouse_offset(state[2], state[3], 1);
#else
h_offset -= mouse_offset(state[2], state[3], 1);
#endif
#ifdef PIMORONI_TRACKBALL_INVERT_Y
v_offset += mouse_offset(state[1], state[0], 1);
#else
v_offset -= mouse_offset(state[1], state[0], 1);
#endif
} else {
#ifdef PIMORONI_TRACKBALL_INVERT_X
x_offset -= mouse_offset(state[2], state[3], 5);
#else
x_offset += mouse_offset(state[2], state[3], 5);
#endif
#ifdef PIMORONI_TRACKBALL_INVERT_Y
y_offset -= mouse_offset(state[1], state[0], 5);
#else
y_offset += mouse_offset(state[1], state[0], 5);
#endif
}
} else {
if (state[4]) {
debounce = true;
debounce_timer = timer_read();
}
}
} else {
i2c_timeout_timer = timer_read();
}
}
if (timer_elapsed(debounce_timer) > MOUSE_DEBOUNCE) debounce = false;
report_mouse_t mouse = pointing_device_get_report();
// trackball_check_click(state[4] & (1 << 7), &mouse);
#ifndef PIMORONI_TRACKBALL_ROTATE
update_member(&mouse.x, &x_offset);
update_member(&mouse.y, &y_offset);
update_member(&mouse.h, &h_offset);
update_member(&mouse.v, &v_offset);
#else
update_member(&mouse.x, &y_offset);
update_member(&mouse.y, &x_offset);
update_member(&mouse.h, &v_offset);
update_member(&mouse.v, &h_offset);
#endif
pointing_device_set_report(mouse);
pointing_device_send();
}

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keyboards/3w6/rev2/keymaps/default_pimoroni/pimoroni_trackball.h 100644
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/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "quantum.h"
#include "pointing_device.h"
#ifndef TRACKBALL_ADDRESS
# define TRACKBALL_ADDRESS 0x0A
#endif
#define TRACKBALL_WRITE ((TRACKBALL_ADDRESS << 1) | I2C_WRITE)
#define TRACKBALL_READ ((TRACKBALL_ADDRESS << 1) | I2C_READ)
void trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white);
void trackball_check_click(bool pressed, report_mouse_t *mouse);
void trackball_register_button(bool pressed, enum mouse_buttons button);
float trackball_get_precision(void);
void trackball_set_precision(float precision);
bool trackball_is_scrolling(void);
void trackball_set_scrolling(bool scroll);

3
keyboards/3w6/rev2/keymaps/default_pimoroni/rules.mk 100644
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POINTING_DEVICE_ENABLE = yes
SRC += pimoroni_trackball.c
MOUSEKEY_ENABLE = no

275
keyboards/3w6/rev2/matrix.c 100644
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/*
Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com>
2020 Pierre Chevalier <pierrechevalier83@gmail.com>
2021 weteor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This code was heavily inspired by the ergodox_ez keymap, and modernized
* to take advantage of the quantum.h microcontroller agnostics gpio control
* abstractions and use the macros defined in config.h for the wiring as opposed
* to repeating that information all over the place.
*/
#include QMK_KEYBOARD_H
#include "i2c_master.h"
extern i2c_status_t tca9555_status;
#define I2C_TIMEOUT 1000
// I2C address:
// All address pins of the tca9555 are connected to the ground
// | 0 | 1 | 0 | 0 | A2 | A1 | A0 |
// | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
#define I2C_ADDR 0b0100000
#define I2C_ADDR_WRITE ((I2C_ADDR << 1) | I2C_WRITE)
#define I2C_ADDR_READ ((I2C_ADDR << 1) | I2C_READ)
// Register addresses
#define IODIRA 0x06 // i/o direction register
#define IODIRB 0x07
#define IREGP0 0x00 // GPIO pull-up resistor register
#define IREGP1 0x01
#define OREGP0 0x02 // general purpose i/o port register (write modifies OLAT)
#define OREGP1 0x03
bool i2c_initialized = 0;
i2c_status_t tca9555_status = I2C_ADDR;
uint8_t init_tca9555(void) {
print("starting init");
tca9555_status = I2C_ADDR;
// I2C subsystem
if (i2c_initialized == 0) {
i2c_init(); // on pins D(1,0)
i2c_initialized = true;
wait_ms(I2C_TIMEOUT);
}
// set pin direction
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(IODIRA, I2C_TIMEOUT);
if (tca9555_status) goto out;
// This means: read all pins of port 0
tca9555_status = i2c_write(0b11111111, I2C_TIMEOUT);
if (tca9555_status) goto out;
// This means: we will write on pins 0 to 3 on port 1. read rest
tca9555_status = i2c_write(0b11110000, I2C_TIMEOUT);
if (tca9555_status) goto out;
out:
i2c_stop();
return tca9555_status;
}
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
static matrix_row_t read_cols(uint8_t row);
static void init_cols(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
static uint8_t tca9555_reset_loop;
void matrix_init_custom(void) {
// initialize row and col
tca9555_status = init_tca9555();
unselect_rows();
init_cols();
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
}
}
void matrix_power_up(void) {
tca9555_status = init_tca9555();
unselect_rows();
init_cols();
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
}
}
// Reads and stores a row, returning
// whether a change occurred.
static inline bool store_matrix_row(matrix_row_t current_matrix[], uint8_t index) {
matrix_row_t temp = read_cols(index);
if (current_matrix[index] != temp) {
current_matrix[index] = temp;
return true;
}
return false;
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
if (tca9555_status) { // if there was an error
if (++tca9555_reset_loop == 0) {
// since tca9555_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
// this will be approx bit more frequent than once per second
dprint("trying to reset tca9555\n");
tca9555_status = init_tca9555();
if (tca9555_status) {
dprint("right side not responding\n");
} else {
dprint("right side attached\n");
}
}
}
bool changed = false;
for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) {
// select rows from left and right hands
uint8_t left_index = i;
uint8_t right_index = i + MATRIX_ROWS_PER_SIDE;
select_row(left_index);
select_row(right_index);
// we don't need a 30us delay anymore, because selecting a
// left-hand row requires more than 30us for i2c.
changed |= store_matrix_row(current_matrix, left_index);
changed |= store_matrix_row(current_matrix, right_index);
unselect_rows();
}
return changed;
}
static void init_cols(void) {
// init on tca9555
// not needed, already done as part of init_tca9555()
// init on mcu
pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_L;
for (int pin_index = 0; pin_index < MATRIX_COLS_PER_SIDE; pin_index++) {
pin_t pin = matrix_col_pins_mcu[pin_index];
setPinInput(pin);
writePinHigh(pin);
}
}
static matrix_row_t read_cols(uint8_t row) {
if (row < MATRIX_ROWS_PER_SIDE) {
pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_L;
matrix_row_t current_row_value = 0;
// For each col...
for (uint8_t col_index = 0; col_index < MATRIX_COLS_PER_SIDE; col_index++) {
// Select the col pin to read (active low)
uint8_t pin_state = readPin(matrix_col_pins_mcu[col_index]);
// Populate the matrix row with the state of the col pin
current_row_value |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
}
return current_row_value;
} else {
if (tca9555_status) { // if there was an error
return 0;
} else {
uint8_t data = 0;
uint8_t port0 = 0;
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(IREGP0, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_read_nack(I2C_TIMEOUT);
if (tca9555_status < 0) goto out;
port0 = ~(uint8_t)tca9555_status;
// We read all the pins on GPIOA.
// The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
// The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
// the pins connected to eact columns are sequential, but in reverse order, and counting from zero down (col 5 -> GPIO04, col6 -> GPIO03 and so on).
data |= ( port0 & 0x01 ) << 4;
data |= ( port0 & 0x02 ) << 2;
data |= ( port0 & 0x04 );
data |= ( port0 & 0x08 ) >> 2;
data |= ( port0 & 0x10 ) >> 4;
tca9555_status = I2C_STATUS_SUCCESS;
out:
i2c_stop();
return data;
}
}
}
static void unselect_rows(void) {
// no need to unselect on tca9555, because the select step sets all
// the other row bits high, and it's not changing to a different
// direction
// unselect rows on microcontroller
pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_L;
for (int pin_index = 0; pin_index < MATRIX_ROWS_PER_SIDE; pin_index++) {
pin_t pin = matrix_row_pins_mcu[pin_index];
setPinInput(pin);
writePinLow(pin);
}
}
static void select_row(uint8_t row) {
uint8_t port1 = 0xff;
if (row < MATRIX_ROWS_PER_SIDE) {
// select on atmega32u4
pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_L;
pin_t pin = matrix_row_pins_mcu[row];
setPinOutput(pin);
writePinLow(pin);
} else {
// select on tca9555
if (tca9555_status) { // if there was an error
// do nothing
} else {
switch(row) {
case 4: port1 &= ~(1 << 0); break;
case 5: port1 &= ~(1 << 1); break;
case 6: port1 &= ~(1 << 2); break;
case 7: port1 &= ~(1 << 3); break;
default: break;
}
// Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
// Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
tca9555_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(OREGP1, I2C_TIMEOUT);
if (tca9555_status) goto out;
tca9555_status = i2c_write(port1, I2C_TIMEOUT);
if (tca9555_status) goto out;
out:
i2c_stop();
}
}
}

38
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# 3W6
![3W6_rev2](https://raw.githubusercontent.com/weteor/3W6/main/images/3w6_rev2_2s.jpg)
![3W6_rev2](https://raw.githubusercontent.com/weteor/3W6/main/images/3w6_rev2_1s.jpg)
The 3w6 is a low profile, split ortholinear keyboard with 36 keys.
* Rev2:
- onboard microcontroller (ATMega32U4)
- USB-C connector Board <-> PC
- USB-C connectors between both split halfs
- choc spacing (18x17mm)
- aggressive pinky stagger
- support for Choc V1 switches
- files for midplate (1.6 to 2mm)
- support for [Pimoroni Trackball](https://shop.pimoroni.com/products/trackball-breakout) instead of outer thumb switch on right half, needs midplate
- mounting holes for [Tenting Puck](https://splitkb.com/collections/keyboard-parts/products/tenting-puck), only usable without mid or switchplate
---
* Keyboard Maintainer: [weteor](https://github.com/weteor)
* Hardware Supported:
* 3w6 rev2 (with Pimoroni support)
* Hardware Availability:
* make one yourself: [Design and Productionfiles](https://github.com/weteor/3w6)
* maintainer is selling kits when available
---
To reach the bootloader, connect the board to the PC and push the reset button on left half.
Make examples for this keyboard (after setting up your build environment):
make 3w6/rev2:default
make 3w6/rev2:default_pimoroni
---
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

17
keyboards/3w6/rev2/rev2.c 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "rev2.h"

44
keyboards/3w6/rev2/rev2.h 100644
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/* Copyright 2021 weteor
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "quantum.h"
/* This is a shortcut to help you visually see your layout.
*
* The first section contains all of the arguments representing the physical
* layout of the board and position of the keys.
*
* The second converts the arguments into a two-dimensional array which
* represents the switch matrix.
*/
#define LAYOUT( \
k00, k01, k02, k03, k04, k05, k06, k07, k08, k09,\
k10, k11, k12, k13, k14, k15, k16, k17, k18, k19,\
k20, k21, k22, k23, k24, k25, k26, k27, k28, k29,\
k32, k33, k34, k35, k36, k37\
) { \
{ k00, k01, k02, k03, k04 }, \
{ k10, k11, k12, k13, k14 }, \
{ k20, k21, k22, k23, k24 }, \
{ KC_NO, KC_NO, k32, k33, k34 }, \
\
{ k05, k06, k07, k08, k09 }, \
{ k15, k16, k17, k18, k19 }, \
{ k25, k26, k27, k28, k29 }, \
{ k35, k36, k37, KC_NO, KC_NO }, \
}

29
keyboards/3w6/rev2/rules.mk 100644
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# MCU name
MCU = atmega32u4
# Bootloader selection
BOOTLOADER = atmel-dfu
# Build Options
# change yes to no to disable
#
BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration
MOUSEKEY_ENABLE = yes # Mouse keys
EXTRAKEY_ENABLE = yes # Audio control and System control
CONSOLE_ENABLE = no # Console for debug
COMMAND_ENABLE = no # Commands for debug and configuration
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
NKRO_ENABLE = no # USB Nkey Rollover
BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
BLUETOOTH_ENABLE = no # Enable Bluetooth
AUDIO_ENABLE = no # Audio output
UNICODE_ENABLE = yes
CUSTOM_MATRIX = lite
NO_USB_STARTUP_CHECK = yes
LTO_ENABLE = no
SRC += matrix.c
QUANTUM_LIB_SRC += i2c_master.c