#Other Keyboard Firmware Projects
#PJRC USB Keyboard/Mouse Example[USB][PJRC][Teensy][AVR]
#kbupgrade[USB][V-USB][AVR]
#c64key[USB][V-USB][AVR]
#rump[USB][V-USB][AVR]
#dulcimer[USB][V-USB][AVR]
#humblehacker-keyboard[USB][LUFA][AVR][Ergo]
#ps2avr[PS/2][AVR]
#ErgoDox[Ergo][Split][USB][AVR]
#Suka's keyboard collection[Ergo][Split][3DPrinting][USB][AVR]
#bpiphany's AVR-Keyboard[PJRC][AVR][USB]
#USB-USB keyboard remapper[converter][USB-USB][AVR][Arduino]
#USB-USB converter threads[converter][USB-USB]
#kbdbabel.org[converter][vintage][protocol][8051]
Great resource of vintage keyboard protocol information and code
#Haata's kiibohd Controller[converter][vintage][protocol][AVR][PJRC][Cortex]
A lots of vintage keyboard protocol supports
#Kinesis ergonomic keyboard firmware replacement[V-USB][LUFA][Ergo]