1 USB to USB keyboard protocol converter
2 ======================================
7 http://arduino.cc/en/Main/ArduinoBoardLeonardo
9 Circuit@Home USB Host Shield 2.0
10 http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
15 $ git clone git://github.com/tmk/tmk_keyboard.git
18 $ git submodule update
19 $ cd converter/usb_usb
22 Program converter. Push reset button on Leonardo before run this command. Serial port name(COM17) depends your system. On Linux I got /dev/ttyACM0.
24 $ DEV=COM17 make program
26 $ avrdude -patmega32u4 -cavr109 -b57600 -Uflash:w:usb_usb.hex -PCOM17
32 Only supports 'HID Boot protocol'.
33 Not support keyboard LED yet.
39 2014/12/11 Added Hub support(confirmed with HHKB pro2)
46 https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
47 https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini
48 USB Host Sheild 2.0 source
49 https://github.com/felis/USB_Host_Shield_2.0
50 Arduino USB Host Shield(with bootst converter)
51 http://arduino.cc/en/Main/ArduinoUSBHostShield
53 https://github.com/arduino/Arduino/hardware/arduino/{cores,variants}
54 Initial release of TMK USB-USB converter
55 https://geekhack.org/index.php?topic=33057.msg653549#msg653549
56 http://deskthority.net/workshop-f7/is-remapping-a-usb-keyboard-using-teensy-possible-t2841-30.html#p74854
57 Arduino-based hardware keyboard remapper - Colemak forum
58 http://forum.colemak.com/viewtopic.php?id=1561
60 http://www.pjrc.com/teensy/td_libs_USBHostShield.html