1 IBM 4704 to USB keyboard converter
2 ==================================
3 This firmware converts IBM 4704 keyboard protocol to USB HID.
5 Keyboard initialization process takes a few seconds at start up. During that you will hear buzzer from the keyboard. **You need to plug USB cable after hooking up your keyboard to the converter.**
10 ### IBM capacitive switch models:
11 - 6019273 Model 100 50-key (grid layout) http://kishy.dyndns.org/?p=977
12 - 6019284 Model 200 62-key Alpha(60% layout) http://kishy.dyndns.org/?p=894
13 - 6019303 Model 300 77-key Expanded Alpha http://kbtalking.cool3c.com/article/23272
14 - 6020218 Model 400 107-key Full key http://kishy.dyndns.org/?p=980
16 ### Alps switch(vintage Green) models:
18 - 5954339 Japanese 102-key http://deskthority.net/post87127.html#p87127
19 - 6112883 Japanese 102-key http://geekhack.org/index.php?topic=52888.msg1194489#msg1194489
20 - 6112884 Japanese 102-key http://geekhack.org/index.php?topic=50437.msg1193047#msg1193047
21 - 6341739 Chinese 102-key http://geekhack.org/index.php?topic=52888.msg1176566#msg1176566
26 Keyboard Plug from front:
37 N No connection/No pin.
42 In case of using ATMega32U4(Teensy2.0):
44 1. Supply power with VCC and GND.
45 2. Connect CLOCK to PD1 and DATA to PD0. You can change pin with config.h.
46 3. Optionally you may need pull-up register. 1KOhm probably work.
57 $ make KEYMAP=[plain|...]
62 Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap create file named `keymap_<name>.c` and see keymap document(you can find in top README.md) and existent keymap files.