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Kai Ryu 70c15dd083 usb_usb: Improve usb_usb converter 5 years ago
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Makefile usb_usb: Improve usb_usb converter 5 years ago
Makefile.keymap_editor usb_usb: Fix for keymap editor 6 years ago
README usb_usb: update README 7 years ago
config.h usb_usb: Improve usb_usb converter 5 years ago
keymap.c usb_usb: Fix for keymap editor 6 years ago
keymap_common.c usb_usb: Improve usb_usb converter 5 years ago
keymap_common.h usb_usb: Change matrix size 32x8 to 16x16 6 years ago
keymap_default.c usb_usb: Improve usb_usb converter 5 years ago
keymap_editor.c usb_usb: Change matrix size 32x8 to 16x16 6 years ago
keymap_hasu.c usb_usb: Add SpaceFn and hasu keymap 7 years ago
keymap_iso.c usb_usb: Add keymap of iso and of jis 6 years ago
keymap_jis.c usb_usb: Fix JIS keymap 6 years ago
keymap_spacefn.c usb_usb: Fix for keymap editor 6 years ago
ledmap.c usb_usb: Improve usb_usb converter 5 years ago
main.cpp usb_usb: Improve usb_usb converter 5 years ago
usb_usb.cpp usb_usb: Improve usb_usb converter 5 years ago

README

USB to USB keyboard protocol converter
======================================

Hardware requirement
--------------------
Arduino Leonardo
http://arduino.cc/en/Main/ArduinoBoardLeonardo

[email protected] USB Host Shield 2.0
https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino-assembled/

Buying Arduino Leonardo and USB Host Shield 2.0(from [email protected]) will be the easiest way, you won't need even soldering iron.
Arduino's Shield will also work well but I think Sparkfun's needs to be modified.

http://arduino.cc/en/Main/ArduinoUSBHostShield
https://www.sparkfun.com/products/9947

Also Pro Micro 3.3V(not Mini) or Teensy with mini host shield will work with some fixes on signal/power routing.
https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini
https://www.sparkfun.com/products/12587
https://www.pjrc.com/teensy/td_libs_USBHostShield.html



Build firmware
--------------
$ git clone git://github.com/tmk/tmk_keyboard.git
$ cd tmk_keyboard
$ git submodule init
$ git submodule update
$ cd converter/usb_usb
$ make

Program converter. Push reset button on Leonardo before run this command. Serial port name(COM17) depends your system. On Linux I got /dev/ttyACM0.

$ DEV=COM17 make program
or
$ avrdude -patmega32u4 -cavr109 -b57600 -Uflash:w:usb_usb.hex -PCOM17



Limitation
----------
Only supports 'HID Boot protocol'.
Not support keyboard LED yet.

Note that the converter can host only USB "boot protocol" keyboard(6KRO) and not NKRO, it is possible to support NKRO keyboard but you will need to write HID report parser for that. Every NKRO keyboard can have different HID report and it is difficult to support all kind of NKRO keyboards in the market.



Update
------
2014/12/11 Added Hub support(confirmed with HHKB pro2)



Resource
--------
USB Host Sheild 2.0
https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini
USB Host Sheild 2.0 source
https://github.com/felis/USB_Host_Shield_2.0
Arduino USB Host Shield(with bootst converter)
http://arduino.cc/en/Main/ArduinoUSBHostShield
Arduino source
https://github.com/arduino/Arduino/hardware/arduino/{cores,variants}
Initial release of TMK USB-USB converter
https://geekhack.org/index.php?topic=33057.msg653549#msg653549
http://deskthority.net/workshop-f7/is-remapping-a-usb-keyboard-using-teensy-possible-t2841-30.html#p74854
Arduino-based hardware keyboard remapper - Colemak forum
http://forum.colemak.com/viewtopic.php?id=1561
Teensy + Host Shield
http://www.pjrc.com/teensy/td_libs_USBHostShield.html