NeXT non-ADB Keyboard Converter
===============================
With this converter you can use NeXT keyboard(non-ADB) on modern computer.
See this for details.
https://github.com/tmk/tmk_keyboard/wiki/NeXT
Wiring
------
Connections to ATmega32U2/U4
FROM(Pin3): PD0
TO(Pin2): PD1
PSW(Pin4): PD4
GND(Pin5): GND
VCC(Pin1): VCC
Pinouts
-------
Socket on converter from front:
_____
GND / 5 4 \ PSW
FROM | 3 2 | TO
| 1 | VCC
`-----'
FROM: keyboard to computer
TO: computer to keyboard
PSW: Power key
Cable connector inside keyboard case:
+-----+
|Black|\
|Green|-\
|Yello|--\-------- to computer via Mini-Din 5 plug
|Orang|--/--------
|Red |-/
|Brown|/
+-----+
Black: FG
Green: GND
Yellow: PSW(Power key)
Orange: FROM Keyboard
Red: TO Keyboard
Brown: VCC
Protocol
--------
See this for NeXT keyboard protocol.
- https://github.com/tmk/tmk_keyboard/wiki/NeXT#next-keyboard-protocol
Notes
-----
LEDs indicates Caps Lock state in current implementation.
Original Project
----------------
Converter is based heavily on Ladyada's original "USB NeXT Keyboard with Arduino Micro" tutorial (http://learn.adafruit.com/usb-next-keyboard-with-arduino-micro/overview). If you build this converter, show Adafruit some love and do it using an Arduino Micro (http://www.adafruit.com/products/1315) or their ATmega 32u4 Breakout Board (http://www.adafruit.com/products/296). Arduino Micro should work fine using the Arduino Pro Micro configuration above, same pins numbers and everything.
