Apple-2-HW/unified_retro_keyboard
1
0
Fork 0
mirror of https://github.com/osiweb/unified_retro_keyboard.git synced 2024-12-30 10:30:38 +00:00
Code Issues Projects Releases Wiki Activity
Project to provide keyboard replacements for various classic computers, as well as classic ASCII keyboard
201 Commits 9 Branches 8 Tags 62 MiB
C 84.8%
Ruby 7%
CMake 2.8%
Makefile 2.4%
Python 1.6%
Other 1.2%
e415d43c84
Go to file
Dave e415d43c84 Update addon board updates 
- Add diode to C5 to prevent discharge into 5V

- allow selection of default ON or OFF soft switch.
2020-05-27 19:23:34 -05:00
firmware/asdf Bug fix: long delay should invoke _delay_ms(), not _delay_us(). 2020-05-23 23:28:00 -05:00
hardware Update addon board updates 2020-05-27 19:23:34 -05:00
.gitignore Git-ignore updates 2020-05-13 15:50:53 -05:00
README.md Update README.md 2020-04-18 18:12:53 -05:00

README.md

Unified Retrocomputer Keyboard Project

This project aims to provide a (near) universal collection of keyboards for vintage computers. Home computers of the 1970's typically either polled a switch matrix, or interfaced to a parallel ASCII keyboard via a parallel port.

The keyboard allows use of Cherry MX keys, or Futaba MD-4PCS (aka George Risk KBM-01-01) keys.

The keyboard is designed using KiCad in order to be the most useful for anybody wishing to modify the keyboard for more specific uses, or to add to the project.

This keyboard project so far consists of:

  • A classic retro-style ASCII keyboard, modeled after the ADM-3A keyboard, which can be also be populated to fit perfectly in an Apple II/II+ case (with corresponding Apple II keymaps), or an OSI case (with OSI adapter).
  • A Sol-20 compatible keyboard.
  • A keyscan/decoder interface module that can output parallel ASCII, and can be adapted for other protocols.
  • An OSI-compatible interface module.