qmk_firmware/keyboards/lets_split
zer09 7216fd0f47 My userspace and lets_split keymap (#2842)
* copied lets_slit to splinter

* initial splinter layout

* remove unused keymaps

* implemented second half of the keyboard

* initial definition of tap dance

* the tap dance is working now

tap dance for right hand 4c 2r
hold - shift
single tap - n
double tap - ñ
triple tap - Ñ

* clear the keymap.c

* put the tap state on to array

* the n tilde tap dance should produce right shift if hold

* add esc grv tap dance

* remove the defined SS_LSFT on tap_dance.h

because it was added on the quantum.h

* minor cleanup for the keymap

* use the X_* on tap dance

* added super alt tap dance

* use the NO_TAP on tap dance reset

* allow track what rows and cols pressed

* added the RGUI_ALT

* keymap arrangement

* use i2c

* initial rgb

* layer colors

* initial rgb pressed key

* set the layers led

* SUCCESS!!!

* cleaning

* improve shifted layer

* led brightness

* initial caps rainbow

* rename SET_LED_RGB to SET_LED_RGB_HEX

* clean the SET_LED_RGB_HEX and added SET_LED_RGB

* clean format

* caps lock rainbow

* rename key_led to set_key_led

* caps lock rainbow enhanced

* make varibiables static

* change back the loop max value to 360 for the rainbow

* add scroll lock to the rainbow led

* fix pos calculation of right hand board

* add ative keys and make rainbow color can override by key press

* remove the TOTAL_MATRIX_POINTS

* some improvments for the rgb

* call the rgblight_set on the process_record_user

* some enhancement for the leds

* pass the dim value to set_layer_led and limit the brightness on _VL

set the brightness to 2 if the dim value is less than 2 because
their is not enought power for the leds.

* remove the rgb steps on the config

* use the non rev config

* remove all the revisions

* favor i2c instead of serial and remove all the ref for the serial

* clang formatting

* allow to save to eeprom the brightness value

* add bootloader caterina this will enable soft reset key

* initial commit for the userspace

* added my own keymap for splinter

* first working userspace

* move splinter to handwired keyboards

* handwired splinter default keymap

* move some config to my keymap

* cleanup some headers on the keymap

* move the EECONFIG_RGB_DIM to the user space

* I fix remove the GUI on SPC and ENT

* remove the default include on tap_dance.c

* add lights.c and refactoring

* fix wrong source for led index

* seperate the variable on set_layer_led for readabilty.

* set the usb max power consumption to 50

* fix led lighting

* add new enums for tap dance

* use romeve path avr on eeprom.h

* fix wrong spelling on TP names

* changed the tap dance

* allow to set rainbow on some pressed key

* add reset key

* fix error on matrix.c if ROW2COL is used

* add extraflags -flto

* See e2352d4

* Got no love from i2c, serial to the rescue

* Fix the led will lit up to color red after boot

* Trial if the power can handle yellow color at full

* Add comment

* Use EE_HANDS

* add config.h in the use space

* KC_N on BL should wrap in SFT_T

* See d13567d, put it back but increase 1 level

* Fix led soldering mistake

* set the tapping_term to 100

* Use TT for the changing the layer

* Remove the changing space to enter and vice version on BL and UL

* Increate the tapping term

* Use tap dance on changing layer

* Add assorted layer

* propery way to tapdance

* Remove DA_EGRV

This also fix the wrong placement of the reset and dance lspr should register
the KC_LGUI on finished not unregistered.

* Remove the media control to the up and down layer

* Remove the interrupted state of the tap dance

* swapt the space and enter on to th caps

* Shorthand

* Keymap update

* My keymap for lets_split

* cleaning
2018-04-29 13:02:37 -07:00
..
keymaps My userspace and lets_split keymap (#2842) 2018-04-29 13:02:37 -07:00
rev1 More Configurator Warning Fixes (#2716) 2018-04-07 23:32:14 -07:00
rev2 More Configurator Warning Fixes (#2716) 2018-04-07 23:32:14 -07:00
sockets More Configurator Warning Fixes (#2716) 2018-04-07 23:32:14 -07:00
config.h fix up lets_split keymaps 2017-11-14 17:37:57 -05:00
eeprom-lefthand.eep convert to unix line-endings [skip ci] 2017-08-30 15:55:39 +00:00
eeprom-righthand.eep convert to unix line-endings [skip ci] 2017-08-30 15:55:39 +00:00
i2c.c Update i2c.c 2017-03-22 15:50:52 -04:00
i2c.h Added OLED SSD1306 support to I2C 2017-03-22 15:04:11 -04:00
lets_split.c Rename ONEHAND_ENABLE to SWAP_HANDS_ENABLE for consistency 2018-03-16 16:33:43 -04:00
lets_split.h More Configurator Warning Fixes (#2716) 2018-04-07 23:32:14 -07:00
matrix.c Remove _quantum functions from custom matrix.c code 2018-02-06 12:25:30 -05:00
readme.md Fixed dead links (#2451) 2018-03-01 07:45:47 -08:00
rules.mk Normacos keymap for let's split keyboard (#2691) 2018-04-08 11:14:41 -07:00
serial.c Creates a layouts/ folder for keymaps shared between keyboards (#1609) 2017-08-23 22:29:07 -04:00
serial.h images, docks, clean-up [skip ci] 2016-07-05 23:40:54 -04:00
split_util.c Changes lets_split to use timer based debouncing 2017-07-29 11:38:00 -04:00
split_util.h Port #1576 to Let's Split: EECONFIG_HANDEDNESS gets overridden when RGB is enabled 2017-08-30 11:51:58 -04:00

readme.md

Let's Split

This readme and most of the code are from https://github.com/ahtn/tmk_keyboard/

Split keyboard firmware for Arduino Pro Micro or other ATmega32u4 based boards.

Hardware files for the Let's Split are now stored at http://qmk.fm/lets_split/ Hardware files for the sockets version can be found at https://github.com/dumle29/let-s-Split-v2/tree/socket-reverseable

Build Guide

A build guide for putting together the Let's Split v2 can be found here: An Overly Verbose Guide to Building a Let's Split Keyboard

There is additional information there about flashing and adding RGB underglow.

A build guide for putting together the sockets version can be found here: Guide will be made and linked here when the PCBs have been received and tested

First Time Setup

Download or clone the qmk_firmware repo and navigate to its top level directory. Once your build environment is setup, you'll be able to generate the default .hex using:

$ make lets_split/rev2:default

You will see a lot of output and if everything worked correctly you will see the built hex file:

lets_split_rev2_default.hex

If you would like to use one of the alternative keymaps, or create your own, copy one of the existing keymaps and run make like so:

$ make lets_split/rev2:YOUR_KEYMAP_NAME

If everything worked correctly you will see a file:

lets_split_rev2_YOUR_KEYMAP_NAME.hex

For more information on customizing keymaps, take a look at the primary documentation for Customizing Your Keymap in the main readme.md.

Let's split 1.0

If you have a first generation Let's Split you will need to use the revision 1 code. To do so, use rev1 in all your commands instead.

Features

For the full Quantum Mechanical Keyboard feature list, see the parent readme.md.

Some features supported by the firmware:

  • Either half can connect to the computer via USB, or both halves can be used independently.
  • You only need 3 wires to connect the two halves. Two for VCC and GND and one for serial communication.
  • Optional support for I2C connection between the two halves if for some reason you require a faster connection between the two halves. Note this requires an extra wire between halves and pull-up resistors on the data lines.

Required Hardware

Apart from diodes and key switches for the keyboard matrix in each half, you will need:

  • 2 Arduino Pro Micros. You can find these on AliExpress for ≈3.50USD each.
  • 2 TRRS sockets and 1 TRRS cable, or 2 TRS sockets and 1 TRS cable

Alternatively, you can use any sort of cable and socket that has at least 3 wires. If you want to use I2C to communicate between halves, you will need a cable with at least 4 wires and 2x 4.7kΩ pull-up resistors

Optional Hardware

A speaker can be hooked-up to either side to the 5 (C6) pin and GND, and turned on via AUDIO_ENABLE.

Wiring

The 3 wires of the TRS/TRRS cable need to connect GND, VCC, and digital pin 3 (i.e. PD0 on the ATmega32u4) between the two Pro Micros.

Next, wire your key matrix to any of the remaining 17 IO pins of the pro micro and modify the matrix.c accordingly.

The wiring for serial:

serial wiring

The wiring for i2c:

i2c wiring

The pull-up resistors may be placed on either half. It is also possible to use 4 resistors and have the pull-ups in both halves, but this is unnecessary in simple use cases.

You can change your configuration between serial and i2c by modifying your config.h file.

Notes on Software Configuration

Configuring the firmware is similar to any other QMK project. One thing to note is that MATRIX_ROWS in config.h is the total number of rows between the two halves, i.e. if your split keyboard has 4 rows in each half, then use MATRIX_ROWS=8.

Also, the current implementation assumes a maximum of 8 columns, but it would not be very difficult to adapt it to support more if required.

Flashing

From the top level qmk_firmware directory run make KEYBOARD:KEYMAP:avrdude for automatic serial port resolution and flashing. Example: make lets_split/rev2:default:avrdude

Choosing which board to plug the USB cable into (choosing Master)

Because the two boards are identical, the firmware has logic to differentiate the left and right board.

It uses two strategies to figure things out: looking at the EEPROM (memory on the chip) or looking if the current board has the usb cable.

The EEPROM approach requires additional setup (flashing the eeprom) but allows you to swap the usb cable to either side.

The USB cable approach is easier to setup and if you just want the usb cable on the left board, you do not need to do anything extra.

Setting the left hand as master

If you always plug the usb cable into the left board, nothing extra is needed as this is the default. Comment out EE_HANDS and comment out I2C_MASTER_RIGHT or MASTER_RIGHT if for some reason it was set.

Setting the right hand as master

If you always plug the usb cable into the right board, add an extra flag to your config.h

 #define MASTER_RIGHT

Setting EE_hands to use either hands as master

If you define EE_HANDS in your config.h, you will need to set the EEPROM for the left and right halves.

The EEPROM is used to store whether the half is left handed or right handed. This makes it so that the same firmware file will run on both hands instead of having to flash left and right handed versions of the firmware to each half. To flash the EEPROM file for the left half run:

avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-lefthand.eep
// or the equivalent in dfu-programmer

and similarly for right half

avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-righhand.eep
// or the equivalent in dfu-programmer

NOTE: replace $(COM_PORT) with the port of your device (e.g. /dev/ttyACM0)

After you have flashed the EEPROM, you then need to set EE_HANDS in your config.h, rebuild the hex files and reflash.

Note that you need to program both halves, but you have the option of using different keymaps for each half. You could program the left half with a QWERTY layout and the right half with a Colemak layout using bootmagic's default layout option. Then if you connect the left half to a computer by USB the keyboard will use QWERTY and Colemak when the right half is connected.

Notes on Using Pro Micro 3.3V

Do update the F_CPU parameter in rules.mk to 8000000 which reflects the frequency on the 3.3V board.

Also, if the slave board is producing weird characters in certain columns, update the following line in matrix.c to the following:

// _delay_us(30);  // without this wait read unstable value.
_delay_us(300);  // without this wait read unstable value.