The keybrd_DH.ino sketch was written for the DodoHand keyboard.
The keybrd_DH library is an extension of the keybrd library for emulating the DataHand keyboard.
Everything you need to setup and run the keybrd_DH is in:
As of 7/18/16 the DodoHand hardware is 75% complete.
The firmware was Alpha tested on a breadboard keyboard. The firmware is ready for Beta testing, but needs the DodoHand hardware for testing.