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qmk_firmware/converter/usb_usb
Jun Wako f6f698dda0 usb_usb: Update for new core layout 10 years ago
..
Makefile Fix BOOTLOADER_SIZE setting 12 years ago
README usb_usb: Remove mention of downloading LUFA 10 years ago
config.h Adhoc fix compile error of usb_usb 10 years ago
keymap.c Fix keymap to adjust new keyboard.c. 12 years ago
led.c Add USB to USB converter. unmature. 12 years ago
main.cpp Adhoc fix compile error of usb_usb 10 years ago
matrix.c usb_usb: Update for new core layout 10 years ago

README

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

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

Circuit@Home USB Host Shield 2.0
    http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino


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

You will get usb_usb.hex if you are lucky.
Program your Leonardo with avrdude(or easy-going Arduino IDE):

    $ avrdude -patmega32u4 -cavr109 -PCOM17 -b57600 -Uflash:w:usb_usb.hex


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