This project uses GH60 satan PCB, nRF24 wireless module, LiPo(Li-ion) battery and charger module. I am using HHKB but this layout keyboard is hard to buy and expensive. So I start to build my own HHKB with GH60 satan.
- Wireless communication
- nRF24L+ module on keyboard transfer keys to computer
- nRF24LU1+ usb dongle receive keys from keyboard
- Modified keyboard enters to standby mode after 1 second if it doesn't have to do anything.
- The standby current is measured as 490uA with 4.2V battery
- Modified circuits of GH60 satan
- LED is not controlled by SW and disabled LED backlight circuits
- nRF24L+ connected
- PB3: MISO
- PB2: MOSI
- PB1: SCK
- PF4: CE
- PF5: CSN
- UART DEBUG
- PF6: TXD
- Wakeup from standby by all keys
- PF7: pull-down control of row1~5
- Connected PF7 thru register 47K to cathod of diodes from row1, 2, 3, 4, 5 (int0, 1, 2, 3 and 6)
- Pins col3(PE6) and row5(PD5) exchanged for wake up by row5. Row5 is connected to int6.
- Before entering to suspend, all rows pull-down and all cols output high
- Battery powered circuit
- ATMEGA32U4 runs with 3.3V and 8Mhz
- Added a battery and a charger
- Added power mux circuit USB and battery power
- Other
- Caps Lock led moved from PB2(MOSI) to PB6(LED pwm backlight of all LEDs)
- clone git clone https://github.com/jangson/tmk_keyboard_custom.git -b gh60-satan-wireless
- git submodule init
- git submodule update
- cd keyboard/gh60
- make
- Refer USB receiver part to https://github.com/jangson/crazyradio-firmware.git
Initial description
This repository includes keyboard and converter firmware projects built with tmk_core
keyboard library.
The latest source code is available here: http://github.com/tmk/tmk_keyboard
Some projects were moved from converter
and keyboard
to orphan
directory. Those might be removed in some future but you will be able to access them with orphans
tag. See tmk/tmk_keyboard#173
core: flabbergast's Chibios protocol was merged from https://github.com/flabbergast/tmk_keyboard/tree/chibios (@72b1668). See tmk_core/protocol/chibios/README.md. Chibios protocol supports Cortex-M such as STM32 and Kinetis.
Core library was separated to other branch core
. https://github.com/tmk/tmk_keyboard/tree/core
In Makefile
you need to set TMK_DIR
to indicate core library location now.
TMK_DIR = ../../tmk_core
You can find some keyboard specific projects under converter
and keyboard
directory.
- ps2_usb - PS/2 keyboard to USB
- adb_usb - ADB keyboard to USB
- m0110_usb - Macintosh 128K/512K/Plus keyboard to USB
- terminal_usb - IBM Model M terminal keyboard(PS/2 scancode set3) to USB
- news_usb - Sony NEWS keyboard to USB
- x68k_usb - Sharp X68000 keyboard to USB
- sun_usb - Sun to USB(type4, 5 and 3?)
- pc98_usb - PC98 to USB
- usb_usb - [USB to USB][GH_usb]
- ibm4704_usb - IBM 4704 keyboard to USB
- next_usb - NeXT(Non-ADB) to USB, contributed by BCG and based on Adafruit's work
- hhkb - Happy Hacking Keyboard pro my main board
- alps64 - Alps64 PCB
- hbkb - Happy Buckling spring keyboard(IBM Model M 60% mod)
- Infinity - Massdrop Infinity keyboard
- gh60 - GH60 DIY 60% keyboard prototype my second board
- onekey - Simple one key keyboard example
https://github.com/tmk/tmk_keyboard/wiki/TMK-Based-Projects
GPLv2 or later. Some protocol files are under Modified BSD License.
Third party libraries like LUFA, PJRC and V-USB have their own license respectively.
To see help press Magic
+ H
.
Magic
key combination is LShift
+ RShift
in many projects, but Power
key on ADB converter.
Magic
keybind can be vary on each project, check config.h
in project directory.
Following commands can be also executed with Magic
+ key. In console mode Magic
keybind is not needed.
----- Command Help -----
c: enter console mode
d: toggle debug enable
x: toggle matrix debug
k: toggle keyboard debug
m: toggle mouse debug
v: print device version & info
t: print timer count
s: print status
e: print eeprom config
n: toggle NKRO
0/F10: switch to Layer0
1/F1: switch to Layer1
2/F2: switch to Layer2
3/F3: switch to Layer3
4/F4: switch to Layer4
PScr: power down/remote wake-up
Caps: Lock Keyboard(Child Proof)
Paus: jump to bootloader
Boot Magic are executed during boot up time. Press Magic key below then plug in keyboard cable. Note that you must use keys of Layer 0 as Magic keys. These settings are stored in EEPROM so that retain your configure over power cycles.
To avoid configuring accidentally additive salt key KC_SPACE
also needs to be pressed along with the following configuration keys. The salt key is configurable in config.h
. See tmk_core/common/bootmagic.h.
- Skip reading EEPROM to start with default configuration(
ESC
) - Clear configuration stored in EEPROM to reset configuration(
Backspace
)
- Kick up Bootloader(
B
)
- Debug enable(
D
) - Debug matrix enable(
D
+X
) - Debug keyboard enable(
D
+K
) - Debug mouse enable(
D
+M
)
- Swap Control and CapsLock(
Left Control
) - Change CapsLock to Control(
Caps Lock
) - Swap LeftAlt and Gui(
Left Alt
) - Swap RightAlt and Gui(
Right Alt
) - Disable Gui(
Left Gui
) - Swap Grave and Escape(
Grave
) - Swap BackSlash and BackSpace(
Back Slash
) - Enable NKRO on boot(
N
)
- Set Default Layer to 0(
0
) - Set Default Layer to 1(
1
) - Set Default Layer to 2(
2
) - Set Default Layer to 3(
3
) - Set Default Layer to 4(
4
) - Set Default Layer to 5(
5
) - Set Default Layer to 6(
6
) - Set Default Layer to 7(
7
)
This feature makes it possible for you to use mechanical locking switch for CapsLock
, NumLock
or ScrollLock
. To enable this feature define these macros in config.h
and use KC_LCAP
, KC_LN UM
or KC_LSCR
in keymap for locking key instead of normal KC_CAPS
, KC_NLCK
or KC_SLCK
. Res
ync option tries to keep switch state consistent with keyboard LED state.
#define LOCKING_SUPPORT_ENABLE
#define LOCKING_RESYNC_ENABLE
- Add
tmk_core
into your repository usinggit submodule
orgit subtree
. - Copy files from
tmk_keybaord
or other project similar to yours - Edit those files to support your keyboard.
See these as examples.
Use PJRC's hid_listen
to see debug messages. You can use xprintf() to display debug info, see tmk_core/common/xprintf.h
.
- keyboard/ - keyboard projects
- converter/ - protocol converter projects
- tmk_core/ - core library
- tmk_core/doc/ - documents
- Report bugs in github Issues.
- Pull requets are also welcomed.
- Doesn't use Tab to indent, use 4-spaces instead.
You can learn a lot about keyboard firmware from these. See Other Projects other than TMK.